Khalid Bouziane - Academia.edu (original) (raw)
Papers by Khalid Bouziane
Applied Sciences
An efficient quantum cutting mechanism was observed in a system comprising Tb3+−Yb3+ codoped sili... more An efficient quantum cutting mechanism was observed in a system comprising Tb3+−Yb3+ codoped silica hafnia glass and glass-ceramic. Thin films were deposited on silicon substrates using the dip-coating method and photoluminescence dynamics revealed a quantum efficiency of up to 179% at 980 nm. These films can efficiently convert light to lower energy levels and can easily be integrated into silicon-based solar cells, increasing their photoelectric conversion efficiency at a low cost. This was demonstrated through electrical characterization, which revealed a boost in solar cell efficiency when the film was utilized. It was specifically noted that the efficiency of Si solar cells increased by 10.79% and 10.78% when covered with 70SiO2−30HfO2−3Tb3+−12Yb3+ glass and glass ceramic, respectively. Furthermore, an evaluation of the additional external quantum efficiency, derived from this optical system, revealed an improvement ranging from 2.64% to 3.44%. This finding highlights the enhan...
International Journal of Renewable Energy Development
The energy demand is increasing due to population growth and economic development. To satisfy thi... more The energy demand is increasing due to population growth and economic development. To satisfy this energy demand, the use of renewable energy is essential to face global warming and the depletion of fossil fuels. Photovoltaic energy is one of the renewable energy sources, widely used by several countries over the world. The integration of PV energy into the grid brings significant benefits to the economy and environment, however, high penetration of this energy also brings some challenges to the stability of the electrical grid, due to the intermittency of solar energy. To overcome this issue, the use of a forecasting system is one of the solutions to guarantee an effective integration of PV plants in the electrical grid. In this paper, a PV power ultra short term forecasting has been done by using univariate and multivariate LSTM models. Different combinations of input variables of the models and different timesteps forecasting were tested and compared. The main aim of this work is...
Journal of Energy Storage
World Academy of Science, Engineering and Technology, International Journal of Materials and Metallurgical Engineering, 2015
Hyperfine Interactions, 2004
The milling of spinel-related Ti-doped Li 0.5 Fe 2.5 O 4 for different times is studied with XRD,... more The milling of spinel-related Ti-doped Li 0.5 Fe 2.5 O 4 for different times is studied with XRD, Mössbauer spectroscopy and magnetic measurements. Milling converts the material to Li-Ti-doped α-Fe 2 O 3 nanocrystalline particles via an intermediate γ-LiFeO 2-related phase. The role played by the dopant Ti-ion in the process is emphasized.
Hyperfine Interactions, 2004
Energy Reports
In the quest of virtuous energy system, clean energy production poses important environmental, so... more In the quest of virtuous energy system, clean energy production poses important environmental, social, and financial challenges. Among the potentially useful energy carriers, hydrogen emerges as a serious alternative to fossil fuels. Hydrogen is a clean energy vector whose use is likely to undergo significant development in the medium and long term. This article describes the current situation of municipal solid waste generation and management in Morocco. Additionally, a co-gasification plant model for hydrogen production from municipal solid waste and biomass blends was developed in Aspen Plus. A parametric analysis was carried out to study the effect of various parameters such as the temperature of gasification and the steam to feedstock ratio on syngas composition. The main findings show an increase in hydrogen molar fractions for higher temperatures (optimal values being achieved for ∼750 • C) and steam to feedstock ratios ≥1.2. The present model of the co-gasification plant could be further improved by adding a water-gas-shift reactor. This process intensification technique can contribute to the production of sustainable alternatives to the actual predominant fossil-based fuels.
Journal of Alloys and Compounds, 2006
Co(1.1 nm)/Cu(0.9 nm)] ×25 multilayers (MLs) with different textures and interfacial Co-Cu roughn... more Co(1.1 nm)/Cu(0.9 nm)] ×25 multilayers (MLs) with different textures and interfacial Co-Cu roughness have been obtained by depositing them on different buffer layers (Fe, Cr, Cu, Co, Ta or Al) 8 nm thick using an unusual RF sputtering method. An attempt has been made to understand the correlation between the interfacial roughness and giant magnetoresistance (GMR) from the magnetic properties of Co/Cu MLs. It has been observed that high GMR is weakly dependent on the texture of MLs. High GMR has been observed in either in weakly textured (2 0 0) Co/Cu MLs (GMR ∼ 45%) or strongly oriented (1 1 1) Co/Cu MLs (GMR ∼ 30%). However, a strong correlation between interfacial roughness and magneto-transport properties of sputtered Co/Cu(0.9 nm) MLs (corresponding to the first maximum of antiferromagnetic exchange coupling) has been determined. Contribution to GMR from superparamagnetic (SPM) interfacial region has been analyzed in terms of the Langevin function and also the expected standard linear dependence of GMR versus (M/M s) 2 for magnetoresistive granular-type Co-Cu system.
Materials Science and Engineering B-advanced Functional Solid-state Materials, 2007
Brillouin light scattering (BLS) and vibrating sample magnetometry (VSM) were used to study the e... more Brillouin light scattering (BLS) and vibrating sample magnetometry (VSM) were used to study the effect of interfacial intermixing and microstructure on the magnetic properties of DC magnetron sputtered Fe/Al multilayers (MLs) on Si(1 0 0) substrate. Three samples with nominal composition [Al (4 nm)/Fe (3.7 nm)] ×18 and deposited under different negative DC bias voltages (V b = −50, −200 and −400 V) have been investigated. The X-ray diffraction results indicate that the FeAl MLs have a poor crystallinity with no evidence of the absence of B2 phase. The grazing X-ray reflectivity results suggest that the interfacial roughness and intermixing were gradually reduced from 0.7 to 0.5 nm (±0.05 nm) by increasing V b from −50 to −400 V. The magnetization measurements demonstrate the presence of in-plane uniaxial anisotropy and magnetically dead interfacial layers. The BLS results reveal spin-wave surface modes whose frequencies also depend on the applied V b. The same trend upon V b was observed for the perpendicular and in-plane anisotropies.
Hyperfine interactions, Feb 1, 2006
The ferrites Mg 0.9 Mn 0.1 Cr x Fe 2− x O 4 () were prepared using the conventional double sinter... more The ferrites Mg 0.9 Mn 0.1 Cr x Fe 2− x O 4 () were prepared using the conventional double sintering method. The XRD showed that the samples maintain a single spinel cubic phase. The Mssbauer measurements were carried out at room and liquid nitrogen temperatures. From the area ratios of the A and B sites, it was found that the Fe cation population of the A and B sites decreases in proportion to Cr concentration. The contact hyperfine fields at the A and B sites were found to decrease with increasing Cr contents. ...
ICAME 2007, 2009
The electronic and magnetic structures of Fe–V alloys are calculated using the discrete-variation... more The electronic and magnetic structures of Fe–V alloys are calculated using the discrete-variational and full-potential linearized-augmented-plane wave methods. The derived hyperfine properties at Fe sites are studied against the number of Fe atoms in the neighbouring shells. As expected the magnetic hyperfine field depends strongly on the number of Fe atoms in the first and second shells of neighbours while its dependence on the variation of atoms in the third shell is weak. The calculated distribution of the magnetic ...
The orthoferrimanganites Nd 0.65 Sr 0.35 FexMn1-xO 3 (x= 0.1, 0.3, 0.6) have been investigated us... more The orthoferrimanganites Nd 0.65 Sr 0.35 FexMn1-xO 3 (x= 0.1, 0.3, 0.6) have been investigated using XRD, MÖssbauer spectroscopy, magnetization and conductivity techniques. The XRD reflections exhibit single phase structure. The paramagnetic-superparamagnetic-magnetic transitions were observed from MÖssbauer spectra and magnetization measurements in the temperature range from the liquid nitrogen to the room temperature. The conductivity study of the x= 0.1 and 0.3 show semiconducting behavior ...
Journal of Magnetism and Magnetic Materials, 1997
The objectives of the present work were two fold: first to obtain the highest giant magnetoresist... more The objectives of the present work were two fold: first to obtain the highest giant magnetoresistance (GMR) ratio in Co/Cu multilayers grown from the unusual process of rf diode sputtering and second, to investigate in detail correlation between GMR and texture and the interfacial roughness deduced from X-ray diffraction and AFM, respectively. Different interface structures have been induced from the change of the sputtering parameters (sputtering argon gas pressure PAr) which gave the optimal rf sputtering conditions for high GMR. From different results it is concluded that the most important parameter is interface roughness which induces a strong effect on both the GMR and the resistivity of the superlattice. A change in the t2Co dependence of the reciprocal resistance near tCo = 25 Å is attributed to an increase of the effect of the layer roughness when the tCo is going from mesoscopic (tCo > 25 Å) to nanoscopic scale (tCo < 25 Å).
ABSTRACT It is shown in the present study that the strong temperature dependence of Pd/n- SiGe/Si... more ABSTRACT It is shown in the present study that the strong temperature dependence of Pd/n- SiGe/Si Schottky diode parameters, obtained experimentally, could not be fully explained by considering the combined effects of tunneling, recombination, image-force lowering and series resistance. A satisfactory explanation, however, could be achieved within the framework of a modified thermionic emission theory with the assumption that the barrier potential at the Pd/SiGe interface is not flat but fluctuates around a mean value of 0.8 eV with a standard deviation of 84 meV. This mean barrier height is very close to the one derived from C-V data.
A systematic study has been made of the initial corrosion products which form on mild steel capon... more A systematic study has been made of the initial corrosion products which form on mild steel capons exposed near the coastal region of Oman and at some industrial areas. The phases and compositions of the products formed at different periods of exposure were examined by using Mössbauer spectroscopy (295 and 78 K) and X-ray diffraction (XRD) techniques. The results show that lepidocorcite and maghemite are early corrosion products and goethite starts to form after two months of metal exposure to the atmosphere. Akaganeite is an early corrosion product but it forms in marine environments only, which reflects the role of chlorine effect in the atmosphere. The twelve months coupons showed the presence of goethite, lepidocorcite and maghemite, but no akaganeite being seen in the products of one of the studied areas.
Current-voltage (I-V) and capacitance-voltage (C-V) characteristics of He-ion irradiated Pd/n-Si0... more Current-voltage (I-V) and capacitance-voltage (C-V) characteristics of He-ion irradiated Pd/n-Si09Ge0.10 Schottky contacts have been measured in the temperature range from 100 to 300 K. Schottky barrier properties such as the Schottky barrier height (Phibn) and ideality factor (n) have been studied as a function of temperature. The degree to which their characteristics deviated from the ideal case increased as the
ICAME 2011, 2011
We study the effect of hydrogen on the electronic, magnetic and hyperfine structures of an iron-v... more We study the effect of hydrogen on the electronic, magnetic and hyperfine structures of an iron-vanadium superlattice consisting of three Fe monolayers and nine V monolayers. The contact charge density (ρ), the contact hyperfine field (B hf) and the electronic field gradient (EFG) at the Fe sites for different H locations and H fillings are calculated using the first principle full-potential linear-augmented-plane-wave (FP-LAPW) method.
Physical Review B, 2008
We have employed deep-level transient spectroscopy to investigate the electronic properties of de... more We have employed deep-level transient spectroscopy to investigate the electronic properties of defects introduced during high energy He-ion irradiation of epitaxially grown phosphorous-doped n-Si and partially relaxed n-Si0.9Ge0.1 . It is found that He-ion irradiation introduces two major defects in Si and Si0.9Ge0.1 . These have been attributed to a doubly negative charge state of the divacancy (V2=/-) and V-P
Physical Review B, 2008
The effect of structural and chemical disorder on magnetism of Mn-implanted 3C-SiC epilayer on Si... more The effect of structural and chemical disorder on magnetism of Mn-implanted 3C-SiC epilayer on Si(100) is investigated experimentally using Rutherford backscattering channeling spectroscopy (RBS/C), x-ray diffraction (XRD), micro-Raman spectroscopy (muRS) , and magnetometry, and theoretically using ab initio calculations. A single 3C-SiC epilayer on Si(001) was implanted at room temperature (RT) with Mn ions at 80 keV and at a dose of 5×1015cm-2 . RBS data show the formation of a highly disordered implanted layer of ˜45nm with a peak Mn atomic concentration of ˜1.8% randomly distributed, in agreement with the stopping and range of ions in matter (SRIM) simulation. The experimental results of magnetic moment per Mn are interpreted by assuming that the implanted layer consists of two respective main regions, C-rich and Si-rich regions, as reflected by the presence of a graphitic phase, in which the local atomic environment of Mn is essentially C. Annealing seems to favor Mn substitution into Si sites, indicated by the substantial expansion of the lattice constant due to larger covalent Mn radius as observed by XRD and due to a high local tensile strain determined from muRS . This interpretation is also supported by recent calculations, showing that it is energetically favorable for Mn to substitute Si sites. The temperature dependence of magnetization shows an insulatinglike character for the as-implanted film and metalliclike for the annealed-implanted film with Curie temperature above RT. In addition, the magnetic moment per Mn increases strongly with annealing from 0.23 to 0.65muB . The experimental behavior is supported by our ab initio calculations, showing that magnetism in Mn-doped 3C-SiC can be enhanced by carefully growing a structure with Mn in Si sites using a C-deficient SiC host, possibly resulting in localized magnetic interactions.
Applied Sciences
An efficient quantum cutting mechanism was observed in a system comprising Tb3+−Yb3+ codoped sili... more An efficient quantum cutting mechanism was observed in a system comprising Tb3+−Yb3+ codoped silica hafnia glass and glass-ceramic. Thin films were deposited on silicon substrates using the dip-coating method and photoluminescence dynamics revealed a quantum efficiency of up to 179% at 980 nm. These films can efficiently convert light to lower energy levels and can easily be integrated into silicon-based solar cells, increasing their photoelectric conversion efficiency at a low cost. This was demonstrated through electrical characterization, which revealed a boost in solar cell efficiency when the film was utilized. It was specifically noted that the efficiency of Si solar cells increased by 10.79% and 10.78% when covered with 70SiO2−30HfO2−3Tb3+−12Yb3+ glass and glass ceramic, respectively. Furthermore, an evaluation of the additional external quantum efficiency, derived from this optical system, revealed an improvement ranging from 2.64% to 3.44%. This finding highlights the enhan...
International Journal of Renewable Energy Development
The energy demand is increasing due to population growth and economic development. To satisfy thi... more The energy demand is increasing due to population growth and economic development. To satisfy this energy demand, the use of renewable energy is essential to face global warming and the depletion of fossil fuels. Photovoltaic energy is one of the renewable energy sources, widely used by several countries over the world. The integration of PV energy into the grid brings significant benefits to the economy and environment, however, high penetration of this energy also brings some challenges to the stability of the electrical grid, due to the intermittency of solar energy. To overcome this issue, the use of a forecasting system is one of the solutions to guarantee an effective integration of PV plants in the electrical grid. In this paper, a PV power ultra short term forecasting has been done by using univariate and multivariate LSTM models. Different combinations of input variables of the models and different timesteps forecasting were tested and compared. The main aim of this work is...
Journal of Energy Storage
World Academy of Science, Engineering and Technology, International Journal of Materials and Metallurgical Engineering, 2015
Hyperfine Interactions, 2004
The milling of spinel-related Ti-doped Li 0.5 Fe 2.5 O 4 for different times is studied with XRD,... more The milling of spinel-related Ti-doped Li 0.5 Fe 2.5 O 4 for different times is studied with XRD, Mössbauer spectroscopy and magnetic measurements. Milling converts the material to Li-Ti-doped α-Fe 2 O 3 nanocrystalline particles via an intermediate γ-LiFeO 2-related phase. The role played by the dopant Ti-ion in the process is emphasized.
Hyperfine Interactions, 2004
Energy Reports
In the quest of virtuous energy system, clean energy production poses important environmental, so... more In the quest of virtuous energy system, clean energy production poses important environmental, social, and financial challenges. Among the potentially useful energy carriers, hydrogen emerges as a serious alternative to fossil fuels. Hydrogen is a clean energy vector whose use is likely to undergo significant development in the medium and long term. This article describes the current situation of municipal solid waste generation and management in Morocco. Additionally, a co-gasification plant model for hydrogen production from municipal solid waste and biomass blends was developed in Aspen Plus. A parametric analysis was carried out to study the effect of various parameters such as the temperature of gasification and the steam to feedstock ratio on syngas composition. The main findings show an increase in hydrogen molar fractions for higher temperatures (optimal values being achieved for ∼750 • C) and steam to feedstock ratios ≥1.2. The present model of the co-gasification plant could be further improved by adding a water-gas-shift reactor. This process intensification technique can contribute to the production of sustainable alternatives to the actual predominant fossil-based fuels.
Journal of Alloys and Compounds, 2006
Co(1.1 nm)/Cu(0.9 nm)] ×25 multilayers (MLs) with different textures and interfacial Co-Cu roughn... more Co(1.1 nm)/Cu(0.9 nm)] ×25 multilayers (MLs) with different textures and interfacial Co-Cu roughness have been obtained by depositing them on different buffer layers (Fe, Cr, Cu, Co, Ta or Al) 8 nm thick using an unusual RF sputtering method. An attempt has been made to understand the correlation between the interfacial roughness and giant magnetoresistance (GMR) from the magnetic properties of Co/Cu MLs. It has been observed that high GMR is weakly dependent on the texture of MLs. High GMR has been observed in either in weakly textured (2 0 0) Co/Cu MLs (GMR ∼ 45%) or strongly oriented (1 1 1) Co/Cu MLs (GMR ∼ 30%). However, a strong correlation between interfacial roughness and magneto-transport properties of sputtered Co/Cu(0.9 nm) MLs (corresponding to the first maximum of antiferromagnetic exchange coupling) has been determined. Contribution to GMR from superparamagnetic (SPM) interfacial region has been analyzed in terms of the Langevin function and also the expected standard linear dependence of GMR versus (M/M s) 2 for magnetoresistive granular-type Co-Cu system.
Materials Science and Engineering B-advanced Functional Solid-state Materials, 2007
Brillouin light scattering (BLS) and vibrating sample magnetometry (VSM) were used to study the e... more Brillouin light scattering (BLS) and vibrating sample magnetometry (VSM) were used to study the effect of interfacial intermixing and microstructure on the magnetic properties of DC magnetron sputtered Fe/Al multilayers (MLs) on Si(1 0 0) substrate. Three samples with nominal composition [Al (4 nm)/Fe (3.7 nm)] ×18 and deposited under different negative DC bias voltages (V b = −50, −200 and −400 V) have been investigated. The X-ray diffraction results indicate that the FeAl MLs have a poor crystallinity with no evidence of the absence of B2 phase. The grazing X-ray reflectivity results suggest that the interfacial roughness and intermixing were gradually reduced from 0.7 to 0.5 nm (±0.05 nm) by increasing V b from −50 to −400 V. The magnetization measurements demonstrate the presence of in-plane uniaxial anisotropy and magnetically dead interfacial layers. The BLS results reveal spin-wave surface modes whose frequencies also depend on the applied V b. The same trend upon V b was observed for the perpendicular and in-plane anisotropies.
Hyperfine interactions, Feb 1, 2006
The ferrites Mg 0.9 Mn 0.1 Cr x Fe 2− x O 4 () were prepared using the conventional double sinter... more The ferrites Mg 0.9 Mn 0.1 Cr x Fe 2− x O 4 () were prepared using the conventional double sintering method. The XRD showed that the samples maintain a single spinel cubic phase. The Mssbauer measurements were carried out at room and liquid nitrogen temperatures. From the area ratios of the A and B sites, it was found that the Fe cation population of the A and B sites decreases in proportion to Cr concentration. The contact hyperfine fields at the A and B sites were found to decrease with increasing Cr contents. ...
ICAME 2007, 2009
The electronic and magnetic structures of Fe–V alloys are calculated using the discrete-variation... more The electronic and magnetic structures of Fe–V alloys are calculated using the discrete-variational and full-potential linearized-augmented-plane wave methods. The derived hyperfine properties at Fe sites are studied against the number of Fe atoms in the neighbouring shells. As expected the magnetic hyperfine field depends strongly on the number of Fe atoms in the first and second shells of neighbours while its dependence on the variation of atoms in the third shell is weak. The calculated distribution of the magnetic ...
The orthoferrimanganites Nd 0.65 Sr 0.35 FexMn1-xO 3 (x= 0.1, 0.3, 0.6) have been investigated us... more The orthoferrimanganites Nd 0.65 Sr 0.35 FexMn1-xO 3 (x= 0.1, 0.3, 0.6) have been investigated using XRD, MÖssbauer spectroscopy, magnetization and conductivity techniques. The XRD reflections exhibit single phase structure. The paramagnetic-superparamagnetic-magnetic transitions were observed from MÖssbauer spectra and magnetization measurements in the temperature range from the liquid nitrogen to the room temperature. The conductivity study of the x= 0.1 and 0.3 show semiconducting behavior ...
Journal of Magnetism and Magnetic Materials, 1997
The objectives of the present work were two fold: first to obtain the highest giant magnetoresist... more The objectives of the present work were two fold: first to obtain the highest giant magnetoresistance (GMR) ratio in Co/Cu multilayers grown from the unusual process of rf diode sputtering and second, to investigate in detail correlation between GMR and texture and the interfacial roughness deduced from X-ray diffraction and AFM, respectively. Different interface structures have been induced from the change of the sputtering parameters (sputtering argon gas pressure PAr) which gave the optimal rf sputtering conditions for high GMR. From different results it is concluded that the most important parameter is interface roughness which induces a strong effect on both the GMR and the resistivity of the superlattice. A change in the t2Co dependence of the reciprocal resistance near tCo = 25 Å is attributed to an increase of the effect of the layer roughness when the tCo is going from mesoscopic (tCo > 25 Å) to nanoscopic scale (tCo < 25 Å).
ABSTRACT It is shown in the present study that the strong temperature dependence of Pd/n- SiGe/Si... more ABSTRACT It is shown in the present study that the strong temperature dependence of Pd/n- SiGe/Si Schottky diode parameters, obtained experimentally, could not be fully explained by considering the combined effects of tunneling, recombination, image-force lowering and series resistance. A satisfactory explanation, however, could be achieved within the framework of a modified thermionic emission theory with the assumption that the barrier potential at the Pd/SiGe interface is not flat but fluctuates around a mean value of 0.8 eV with a standard deviation of 84 meV. This mean barrier height is very close to the one derived from C-V data.
A systematic study has been made of the initial corrosion products which form on mild steel capon... more A systematic study has been made of the initial corrosion products which form on mild steel capons exposed near the coastal region of Oman and at some industrial areas. The phases and compositions of the products formed at different periods of exposure were examined by using Mössbauer spectroscopy (295 and 78 K) and X-ray diffraction (XRD) techniques. The results show that lepidocorcite and maghemite are early corrosion products and goethite starts to form after two months of metal exposure to the atmosphere. Akaganeite is an early corrosion product but it forms in marine environments only, which reflects the role of chlorine effect in the atmosphere. The twelve months coupons showed the presence of goethite, lepidocorcite and maghemite, but no akaganeite being seen in the products of one of the studied areas.
Current-voltage (I-V) and capacitance-voltage (C-V) characteristics of He-ion irradiated Pd/n-Si0... more Current-voltage (I-V) and capacitance-voltage (C-V) characteristics of He-ion irradiated Pd/n-Si09Ge0.10 Schottky contacts have been measured in the temperature range from 100 to 300 K. Schottky barrier properties such as the Schottky barrier height (Phibn) and ideality factor (n) have been studied as a function of temperature. The degree to which their characteristics deviated from the ideal case increased as the
ICAME 2011, 2011
We study the effect of hydrogen on the electronic, magnetic and hyperfine structures of an iron-v... more We study the effect of hydrogen on the electronic, magnetic and hyperfine structures of an iron-vanadium superlattice consisting of three Fe monolayers and nine V monolayers. The contact charge density (ρ), the contact hyperfine field (B hf) and the electronic field gradient (EFG) at the Fe sites for different H locations and H fillings are calculated using the first principle full-potential linear-augmented-plane-wave (FP-LAPW) method.
Physical Review B, 2008
We have employed deep-level transient spectroscopy to investigate the electronic properties of de... more We have employed deep-level transient spectroscopy to investigate the electronic properties of defects introduced during high energy He-ion irradiation of epitaxially grown phosphorous-doped n-Si and partially relaxed n-Si0.9Ge0.1 . It is found that He-ion irradiation introduces two major defects in Si and Si0.9Ge0.1 . These have been attributed to a doubly negative charge state of the divacancy (V2=/-) and V-P
Physical Review B, 2008
The effect of structural and chemical disorder on magnetism of Mn-implanted 3C-SiC epilayer on Si... more The effect of structural and chemical disorder on magnetism of Mn-implanted 3C-SiC epilayer on Si(100) is investigated experimentally using Rutherford backscattering channeling spectroscopy (RBS/C), x-ray diffraction (XRD), micro-Raman spectroscopy (muRS) , and magnetometry, and theoretically using ab initio calculations. A single 3C-SiC epilayer on Si(001) was implanted at room temperature (RT) with Mn ions at 80 keV and at a dose of 5×1015cm-2 . RBS data show the formation of a highly disordered implanted layer of ˜45nm with a peak Mn atomic concentration of ˜1.8% randomly distributed, in agreement with the stopping and range of ions in matter (SRIM) simulation. The experimental results of magnetic moment per Mn are interpreted by assuming that the implanted layer consists of two respective main regions, C-rich and Si-rich regions, as reflected by the presence of a graphitic phase, in which the local atomic environment of Mn is essentially C. Annealing seems to favor Mn substitution into Si sites, indicated by the substantial expansion of the lattice constant due to larger covalent Mn radius as observed by XRD and due to a high local tensile strain determined from muRS . This interpretation is also supported by recent calculations, showing that it is energetically favorable for Mn to substitute Si sites. The temperature dependence of magnetization shows an insulatinglike character for the as-implanted film and metalliclike for the annealed-implanted film with Curie temperature above RT. In addition, the magnetic moment per Mn increases strongly with annealing from 0.23 to 0.65muB . The experimental behavior is supported by our ab initio calculations, showing that magnetism in Mn-doped 3C-SiC can be enhanced by carefully growing a structure with Mn in Si sites using a C-deficient SiC host, possibly resulting in localized magnetic interactions.