Galina Politova - Academia.edu (original) (raw)

Papers by Galina Politova

Crystals

In this work the magnetocaloric effect in the TbCo2-H system in the region of the Curie temperatu... more In this work the magnetocaloric effect in the TbCo2-H system in the region of the Curie temperature was studied both by direct and indirect methods in external magnetic fields up to ~1.4 and 14 T, respectively. We have paid special attention to the magnetic and magnetothermal properties of the TbCo2–H with high hydrogen content. The mechanisms responsible for the change in the Curie temperature were established, and the field and temperature dependences of the magnetocaloric effect were analyzed in detail. In addition, the magnetocaloric properties (including critical parameters) for various systems based on the TbCo2 compound were compared. The main regularities of the change in the MCE value and the Curie temperature depending on the composition are discovered and discussed.

METAL 2021 Conference Proeedings, 2021

The magnetic properties of polycrystalline samples of isotopically enriched iron with the content... more The magnetic properties of polycrystalline samples of isotopically enriched iron with the content of isotope 56 Fe 99.945±0.002 at. % were investigated at different magnetic field strength values. The samples of monoisotopic iron were melted in the environment of argon and annealed in hydrogen. The same measurements were carried out on the samples of iron with natural isotopic composition. The quantity and composition of impurities in the samples of natural and monoisotopic iron were equal. The magnetic properties were measured using an automatic induction vibro-magnetometer MagEq MNMS 216 and an automatic measuring complex MK-3E in accordance with GOST 8.377-80 and GOST 12119.1-98. It was found that the value of the saturation magnetization Js of 56 Fe is higher by 10.87% than that of nat Fe at room temperature, and by 11.35% at 100 K. The values of saturation induction Вs and residual magnetic induction Br for 56 Fe are higher than for nat Fe. The difference in the values of the coercive force Нс for the nat Fe and 56 Fe samples is due to the difference in the grain size of the samples and in the purity of the materials.

Terbium substitution effects in CeFe2: structure and magnetic properties

IEEE Magnetics Letters, 2021

The crystal structure and magnetic properties of multicomponent compounds <inline-formula>&... more The crystal structure and magnetic properties of multicomponent compounds <inline-formula><tex-math notation="LaTeX">$\text{Ce}_{1-x}\text{Tb}_{x} \text{Fe}_{2}$</tex-math></inline-formula> (<inline-formula><tex-math notation="LaTeX">$x$</tex-math></inline-formula> = 0, 0.1, 0.2, 0.3, 0.5, 0.7) are studied in this letter. Compounds crystallize in a structure of the MgCu₂ type; the content of the second phase (PuNi₃-type, R3m space group) averaged 5%–8%. The parameters of the unit cell were determined and the surface of the sample was investigated by atomic force and magnetic force microscopy. In the temperature range 90–600 K, the magnetization of the alloys was investigated, and the Curie temperature was determined. Information was obtained on the magnetocaloric and magnetostrictive properties of the compounds under study.

2019 XXI International Conference Complex Systems: Control and Modeling Problems (CSCMP), 2019

The aim of the work is to create a miniature pulse optical emitter on an infrared laser diode wit... more The aim of the work is to create a miniature pulse optical emitter on an infrared laser diode with a pulse duration of the order of 1 ns and a pulse power of more than 30 W based on the effect of high-efficiency avalanche switching in bipolar silicon transistors. An optical emitter that can improve the accuracy of optical radar operation up to 10 times and which is a record indicator has been developed. The ways of increasing the radiation power, increasing the repetition rate of pulses (necessary to improve the accuracy of the radar), and searching for ways to transition to the subnanosecond region are considered.

Magnetic Phase Transitions in GdH0.15: Some Peculiarities in the Behavior of Magnetocaloric and Magnetostrictive Effects

IEEE Magnetics Letters

Technical Physics

A comprehensive analysis of the structure, phase composition, surface topology features, and magn... more A comprehensive analysis of the structure, phase composition, surface topology features, and magnetic and magnetocaloric properties of Tb 0.3 Dy 0.35 Ho 0.35 Co 1.75 T 0.25 (T = Al, Fe) multicomponent alloys has been performed. The specifics of variations in the structure and functional properties induced by the partial substitution of cobalt atoms in the 3d sublattice of RCo 2 with aluminum or iron atoms have been determined.

Doklady Physics

The nature of the magnetocaloric effect (MCE) in compounds R 2 Fe 14 B (R = Nd, Er) and their hyd... more The nature of the magnetocaloric effect (MCE) in compounds R 2 Fe 14 B (R = Nd, Er) and their hydrides in a wide temperature range is investigated. The investigation is carried out on initial samples of a special purity including single-crystalline ones. The highest value of the magnetocaloric effect is established in the Curie-temperature region. The hydrogenation of samples affects the value of the MCE. The model explaining the dependence of the value and sign of the magnetocaloric effect on the hydrogen contents in R 2 Fe 14 B compounds with participation of erbium and neodymium is proposed.

Physics of the Solid State

Nanostructure Nd-Ho-Fe-CoB alloys have been probed via atomic force microscopy and magnetic force... more Nanostructure Nd-Ho-Fe-CoB alloys have been probed via atomic force microscopy and magnetic force microscopy (AFM and MFM, respectively). The ribbon samples with a thickness of ~30 μm are prepared via the rapid solidification on a rotating copper barrel. A part of samples has been subjected to hydration, whereas another one has undergone severe plastic deformation. AFM was mainly used to study the contact and free surface of ribbon samples. This has enabled us to establish the topography, structure, defects of both sides, morphology of magnetic inclusions of the initial quenched samples and the materials subjected to the subsequent external effects. The AFM and MFM data allowed the magnetic hysteresis properties of the bulk samples with the identical composition to be interpreted.

Journal of Materials Engineering and Performance

A study is made of the effects of various factors such as time (7 years), temperature, high magne... more A study is made of the effects of various factors such as time (7 years), temperature, high magnetic field up to 580 kOe and heat treatment (HT) on the morphological structure and magnetic hysteresis properties of a high-coercive nanocrystalline (Nd 0.55 Ho 0.45) 2.7 (Fe 0.8 Co 0.2) 14 B 1.2 alloy with a low temperature coefficient of remanence. We find a rather weak time effect on (Nd 0.55 Ho 0.45) 2.7 (Fe 0.8 Co 0.2) 14 B 1.2. After 7 years, the loss in the maximum magnetic energy product (BH) max is no more than 5%. Annealing of the sample at 250°C for 30 min decreases the amount of amorphous phase from 7.2 to 1.7%, while the grainsÕ size of the 2-14-1 phase increases from 83 to 109 nm. For the HT alloy, a magnetization jump is observed at H 500kOe.Itcanbeattributedtothefirst−ordermagnetizationprocessoraspin−flipmagnetictransition.Rectangularityofthehysteresisloopdegradesafterannealing.Incaseoftheshort−timeheattreatment,lossesin(BH)maxare500 kOe. It can be attributed to the first-order magnetization process or a spin-flip magnetic transition. Rectangularity of the hysteresis loop degrades after annealing. In case of the short-time heat treatment, losses in (BH) max are 500kOe.Itcanbeattributedtothefirst−ordermagnetizationprocessoraspin−flipmagnetictransition.Rectangularityofthehysteresisloopdegradesafterannealing.Incaseoftheshort−timeheattreatment,lossesin(BH)maxare10%.

Scientific Reports, 2016

Gadolinium is a nearly ideal soft-magnetic material. However, one cannot take advantage of its pr... more Gadolinium is a nearly ideal soft-magnetic material. However, one cannot take advantage of its properties at temperatures higher than the room temperature where Gd loses the ferromagnetic ordering. By using high-purity bulk samples with grains ~200 nm in size, we present proof-ofconcept measurements of an increased Curie point (T C) and spontaneous magnetization in Gd due to hydrogenation. From first-principles we explain increase of T C in pure Gd due to the addition of hydrogen. We show that the interplay of the characteristic features in the electronic structure of the conduction band at the Fermi level in the high-temperature paramagnetic phase of Gd and "negative" pressure exerted by hydrogen are responsible for the observed effect.

Comparison of Size Distribution Functions for Particles of Heated BaTiO3 + ZrO2 Powder Mixtures

Russian Physics Journal, 2015

Comparison of concentrations of BaZr x Ti(1–x)O3 solid solutions synthesized from various powder mixtures

Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques, 2015

The dependence of concentration of synthesized BaZrxTi(1–x)O3 solid solutions on the type of orig... more The dependence of concentration of synthesized BaZrxTi(1–x)O3 solid solutions on the type of original mixture of BaTiO3 + ZrO2 or BaCO3 + TiO2 + ZrO2 powders was established. The influence of particle sizes of ZrO2 (microor nanopowders) on the concentration was revealed.

Features of the surface morphology and magnetic properties of the (Sm,Gd)${\rm{Fe_{2}}}$ with Laves phase structure

IEEE Magnetics Letters

EPJ Web of Conferences

We study the impact of hydrogen impurity on the magnetic phase transition temperatures of the hig... more We study the impact of hydrogen impurity on the magnetic phase transition temperatures of the high purity rare-earth metals Gd, Tb and Dy. Prior to hydrogenation, the rare earths were purified by the vacuum distillation method. Hydrogenation was carried out using a Sievert-type apparatus. Magnetic phase diagrams were constructed based on the thermomagnetic analysis.

Low-Temperature Magnetic Hysteresis in Nd(Pr)-Fe-B Nanostructured Alloys with Nd2Fe14B Type Main Phase Composition

Defect and Diffusion Forum

Magnetic hysteresis properties of nanostructured industrially manufactured Nd-Fe-B and Pr-Fe-B al... more Magnetic hysteresis properties of nanostructured industrially manufactured Nd-Fe-B and Pr-Fe-B alloys on the base of a tetragonal Nd2Fe14B (2-14-1) hard magnetic phase (MQP-B, MQP-B+ and MQP-16-7 brands) have been investigated at 4.2 K in magnetic fields up to 58 T. The chemical composition of the alloys given in the certificates was defined more precisely. The grain sizes of the main 2-14-1 phase were determined. The average grain size is much smaller than a critical single domain diameter. Coercivity, remanence magnetization, saturation magnetization and maximal magnetic energy product were determined at 4.2 K and compared with those obtained at room temperature.

Magnetocaloric and Structural Studies of Substituted Tb0.2Dy0.8-xGdxCo0.9Al0.1 Laves Phases Alloys

Key Engineering Materials

The multicomponent Tb0.2Dy0.8-xGdxCo2 and Tb0.2Dy0.8-xGdxCo0.9Al0.1 alloys (x≤0.5) were studied i... more The multicomponent Tb0.2Dy0.8-xGdxCo2 and Tb0.2Dy0.8-xGdxCo0.9Al0.1 alloys (x≤0.5) were studied in a large temperature range (80 – 350 K) and fields up to 1.8 T. Temperature dependencies of lattices parameters, surface topology features, Curie temperature and magnetocaloric effect near it, of these polycrystalline cubic Laves phase alloys have been obtained and analyzed. The effect of Gd and Al substitution within the rare earth and cobalt sublattices on the structural and magnetocaloric properties of Tb0.2Dy0.8Co2 has been discussed.

Journal of Applied Physics

An investigation of the Y 2 Fe 17 compound belonging to the class of intermetallic alloys of rare... more An investigation of the Y 2 Fe 17 compound belonging to the class of intermetallic alloys of rareearth and 3d-transition metals is presented. The magnetization, magnetostriction, and thermal expansion of the Y 2 Fe 17 single crystal were studied. The forced magnetostriction and magnetostriction constants were investigated in the temperature range of the magnetic ordering close to the room temperature. The giant field induced volume magnetostriction was discovered in the room temperature region in the magnetic field up to 1.2 T. The contributions of both anisotropic singleion and isotropic pair exchange interactions to the volume magnetostriction and magnetostriction constants were determined. The experimental results were interpreted within the framework of the Standard Theory of Magnetostriction and the Landau thermodynamic theory. It was found out that the giant values of the volume magnetostriction were caused by the strong dependence of the 3delectron Coulomb charge repulsion on the deformations and width of the 3d-electron energy band.

Magnetic and Magnetostrictive Properties of Tb-Dy-Ho-Fe-Co Alloys

Solid State Phenomena, 2009

Page 1. Magnetic and magnetostrictive properties of Tb-Dy-Ho-Fe-Co alloys IS Tereshina 1,3 a , SA... more Page 1. Magnetic and magnetostrictive properties of Tb-Dy-Ho-Fe-Co alloys IS Tereshina 1,3 a , SA Nikitin 2,3 , GA Politova 2 , AS Ilyushin 2 , AA Opolenko 2 , GS Burkhanov 1 , OD Chistyakov 1 , T. Palewski 3 1Baikov Institute ...

Applied Physics Letters, 2014

Crystals

In this work the magnetocaloric effect in the TbCo2-H system in the region of the Curie temperatu... more In this work the magnetocaloric effect in the TbCo2-H system in the region of the Curie temperature was studied both by direct and indirect methods in external magnetic fields up to ~1.4 and 14 T, respectively. We have paid special attention to the magnetic and magnetothermal properties of the TbCo2–H with high hydrogen content. The mechanisms responsible for the change in the Curie temperature were established, and the field and temperature dependences of the magnetocaloric effect were analyzed in detail. In addition, the magnetocaloric properties (including critical parameters) for various systems based on the TbCo2 compound were compared. The main regularities of the change in the MCE value and the Curie temperature depending on the composition are discovered and discussed.

METAL 2021 Conference Proeedings, 2021

The magnetic properties of polycrystalline samples of isotopically enriched iron with the content... more The magnetic properties of polycrystalline samples of isotopically enriched iron with the content of isotope 56 Fe 99.945±0.002 at. % were investigated at different magnetic field strength values. The samples of monoisotopic iron were melted in the environment of argon and annealed in hydrogen. The same measurements were carried out on the samples of iron with natural isotopic composition. The quantity and composition of impurities in the samples of natural and monoisotopic iron were equal. The magnetic properties were measured using an automatic induction vibro-magnetometer MagEq MNMS 216 and an automatic measuring complex MK-3E in accordance with GOST 8.377-80 and GOST 12119.1-98. It was found that the value of the saturation magnetization Js of 56 Fe is higher by 10.87% than that of nat Fe at room temperature, and by 11.35% at 100 K. The values of saturation induction Вs and residual magnetic induction Br for 56 Fe are higher than for nat Fe. The difference in the values of the coercive force Нс for the nat Fe and 56 Fe samples is due to the difference in the grain size of the samples and in the purity of the materials.

Terbium substitution effects in CeFe2: structure and magnetic properties

IEEE Magnetics Letters, 2021

The crystal structure and magnetic properties of multicomponent compounds <inline-formula>&... more The crystal structure and magnetic properties of multicomponent compounds <inline-formula><tex-math notation="LaTeX">$\text{Ce}_{1-x}\text{Tb}_{x} \text{Fe}_{2}$</tex-math></inline-formula> (<inline-formula><tex-math notation="LaTeX">$x$</tex-math></inline-formula> = 0, 0.1, 0.2, 0.3, 0.5, 0.7) are studied in this letter. Compounds crystallize in a structure of the MgCu₂ type; the content of the second phase (PuNi₃-type, R3m space group) averaged 5%–8%. The parameters of the unit cell were determined and the surface of the sample was investigated by atomic force and magnetic force microscopy. In the temperature range 90–600 K, the magnetization of the alloys was investigated, and the Curie temperature was determined. Information was obtained on the magnetocaloric and magnetostrictive properties of the compounds under study.

2019 XXI International Conference Complex Systems: Control and Modeling Problems (CSCMP), 2019

The aim of the work is to create a miniature pulse optical emitter on an infrared laser diode wit... more The aim of the work is to create a miniature pulse optical emitter on an infrared laser diode with a pulse duration of the order of 1 ns and a pulse power of more than 30 W based on the effect of high-efficiency avalanche switching in bipolar silicon transistors. An optical emitter that can improve the accuracy of optical radar operation up to 10 times and which is a record indicator has been developed. The ways of increasing the radiation power, increasing the repetition rate of pulses (necessary to improve the accuracy of the radar), and searching for ways to transition to the subnanosecond region are considered.

Magnetic Phase Transitions in GdH0.15: Some Peculiarities in the Behavior of Magnetocaloric and Magnetostrictive Effects

IEEE Magnetics Letters

Technical Physics

A comprehensive analysis of the structure, phase composition, surface topology features, and magn... more A comprehensive analysis of the structure, phase composition, surface topology features, and magnetic and magnetocaloric properties of Tb 0.3 Dy 0.35 Ho 0.35 Co 1.75 T 0.25 (T = Al, Fe) multicomponent alloys has been performed. The specifics of variations in the structure and functional properties induced by the partial substitution of cobalt atoms in the 3d sublattice of RCo 2 with aluminum or iron atoms have been determined.

Doklady Physics

The nature of the magnetocaloric effect (MCE) in compounds R 2 Fe 14 B (R = Nd, Er) and their hyd... more The nature of the magnetocaloric effect (MCE) in compounds R 2 Fe 14 B (R = Nd, Er) and their hydrides in a wide temperature range is investigated. The investigation is carried out on initial samples of a special purity including single-crystalline ones. The highest value of the magnetocaloric effect is established in the Curie-temperature region. The hydrogenation of samples affects the value of the MCE. The model explaining the dependence of the value and sign of the magnetocaloric effect on the hydrogen contents in R 2 Fe 14 B compounds with participation of erbium and neodymium is proposed.

Physics of the Solid State

Nanostructure Nd-Ho-Fe-CoB alloys have been probed via atomic force microscopy and magnetic force... more Nanostructure Nd-Ho-Fe-CoB alloys have been probed via atomic force microscopy and magnetic force microscopy (AFM and MFM, respectively). The ribbon samples with a thickness of ~30 μm are prepared via the rapid solidification on a rotating copper barrel. A part of samples has been subjected to hydration, whereas another one has undergone severe plastic deformation. AFM was mainly used to study the contact and free surface of ribbon samples. This has enabled us to establish the topography, structure, defects of both sides, morphology of magnetic inclusions of the initial quenched samples and the materials subjected to the subsequent external effects. The AFM and MFM data allowed the magnetic hysteresis properties of the bulk samples with the identical composition to be interpreted.

Journal of Materials Engineering and Performance

A study is made of the effects of various factors such as time (7 years), temperature, high magne... more A study is made of the effects of various factors such as time (7 years), temperature, high magnetic field up to 580 kOe and heat treatment (HT) on the morphological structure and magnetic hysteresis properties of a high-coercive nanocrystalline (Nd 0.55 Ho 0.45) 2.7 (Fe 0.8 Co 0.2) 14 B 1.2 alloy with a low temperature coefficient of remanence. We find a rather weak time effect on (Nd 0.55 Ho 0.45) 2.7 (Fe 0.8 Co 0.2) 14 B 1.2. After 7 years, the loss in the maximum magnetic energy product (BH) max is no more than 5%. Annealing of the sample at 250°C for 30 min decreases the amount of amorphous phase from 7.2 to 1.7%, while the grainsÕ size of the 2-14-1 phase increases from 83 to 109 nm. For the HT alloy, a magnetization jump is observed at H 500kOe.Itcanbeattributedtothefirst−ordermagnetizationprocessoraspin−flipmagnetictransition.Rectangularityofthehysteresisloopdegradesafterannealing.Incaseoftheshort−timeheattreatment,lossesin(BH)maxare500 kOe. It can be attributed to the first-order magnetization process or a spin-flip magnetic transition. Rectangularity of the hysteresis loop degrades after annealing. In case of the short-time heat treatment, losses in (BH) max are 500kOe.Itcanbeattributedtothefirst−ordermagnetizationprocessoraspin−flipmagnetictransition.Rectangularityofthehysteresisloopdegradesafterannealing.Incaseoftheshort−timeheattreatment,lossesin(BH)maxare10%.

Scientific Reports, 2016

Gadolinium is a nearly ideal soft-magnetic material. However, one cannot take advantage of its pr... more Gadolinium is a nearly ideal soft-magnetic material. However, one cannot take advantage of its properties at temperatures higher than the room temperature where Gd loses the ferromagnetic ordering. By using high-purity bulk samples with grains ~200 nm in size, we present proof-ofconcept measurements of an increased Curie point (T C) and spontaneous magnetization in Gd due to hydrogenation. From first-principles we explain increase of T C in pure Gd due to the addition of hydrogen. We show that the interplay of the characteristic features in the electronic structure of the conduction band at the Fermi level in the high-temperature paramagnetic phase of Gd and "negative" pressure exerted by hydrogen are responsible for the observed effect.

Comparison of Size Distribution Functions for Particles of Heated BaTiO3 + ZrO2 Powder Mixtures

Russian Physics Journal, 2015

Comparison of concentrations of BaZr x Ti(1–x)O3 solid solutions synthesized from various powder mixtures

Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques, 2015

The dependence of concentration of synthesized BaZrxTi(1–x)O3 solid solutions on the type of orig... more The dependence of concentration of synthesized BaZrxTi(1–x)O3 solid solutions on the type of original mixture of BaTiO3 + ZrO2 or BaCO3 + TiO2 + ZrO2 powders was established. The influence of particle sizes of ZrO2 (microor nanopowders) on the concentration was revealed.

Features of the surface morphology and magnetic properties of the (Sm,Gd)${\rm{Fe_{2}}}$ with Laves phase structure

IEEE Magnetics Letters

EPJ Web of Conferences

We study the impact of hydrogen impurity on the magnetic phase transition temperatures of the hig... more We study the impact of hydrogen impurity on the magnetic phase transition temperatures of the high purity rare-earth metals Gd, Tb and Dy. Prior to hydrogenation, the rare earths were purified by the vacuum distillation method. Hydrogenation was carried out using a Sievert-type apparatus. Magnetic phase diagrams were constructed based on the thermomagnetic analysis.

Low-Temperature Magnetic Hysteresis in Nd(Pr)-Fe-B Nanostructured Alloys with Nd2Fe14B Type Main Phase Composition

Defect and Diffusion Forum

Magnetic hysteresis properties of nanostructured industrially manufactured Nd-Fe-B and Pr-Fe-B al... more Magnetic hysteresis properties of nanostructured industrially manufactured Nd-Fe-B and Pr-Fe-B alloys on the base of a tetragonal Nd2Fe14B (2-14-1) hard magnetic phase (MQP-B, MQP-B+ and MQP-16-7 brands) have been investigated at 4.2 K in magnetic fields up to 58 T. The chemical composition of the alloys given in the certificates was defined more precisely. The grain sizes of the main 2-14-1 phase were determined. The average grain size is much smaller than a critical single domain diameter. Coercivity, remanence magnetization, saturation magnetization and maximal magnetic energy product were determined at 4.2 K and compared with those obtained at room temperature.

Magnetocaloric and Structural Studies of Substituted Tb0.2Dy0.8-xGdxCo0.9Al0.1 Laves Phases Alloys

Key Engineering Materials

The multicomponent Tb0.2Dy0.8-xGdxCo2 and Tb0.2Dy0.8-xGdxCo0.9Al0.1 alloys (x≤0.5) were studied i... more The multicomponent Tb0.2Dy0.8-xGdxCo2 and Tb0.2Dy0.8-xGdxCo0.9Al0.1 alloys (x≤0.5) were studied in a large temperature range (80 – 350 K) and fields up to 1.8 T. Temperature dependencies of lattices parameters, surface topology features, Curie temperature and magnetocaloric effect near it, of these polycrystalline cubic Laves phase alloys have been obtained and analyzed. The effect of Gd and Al substitution within the rare earth and cobalt sublattices on the structural and magnetocaloric properties of Tb0.2Dy0.8Co2 has been discussed.

Journal of Applied Physics

An investigation of the Y 2 Fe 17 compound belonging to the class of intermetallic alloys of rare... more An investigation of the Y 2 Fe 17 compound belonging to the class of intermetallic alloys of rareearth and 3d-transition metals is presented. The magnetization, magnetostriction, and thermal expansion of the Y 2 Fe 17 single crystal were studied. The forced magnetostriction and magnetostriction constants were investigated in the temperature range of the magnetic ordering close to the room temperature. The giant field induced volume magnetostriction was discovered in the room temperature region in the magnetic field up to 1.2 T. The contributions of both anisotropic singleion and isotropic pair exchange interactions to the volume magnetostriction and magnetostriction constants were determined. The experimental results were interpreted within the framework of the Standard Theory of Magnetostriction and the Landau thermodynamic theory. It was found out that the giant values of the volume magnetostriction were caused by the strong dependence of the 3delectron Coulomb charge repulsion on the deformations and width of the 3d-electron energy band.

Magnetic and Magnetostrictive Properties of Tb-Dy-Ho-Fe-Co Alloys

Solid State Phenomena, 2009

Page 1. Magnetic and magnetostrictive properties of Tb-Dy-Ho-Fe-Co alloys IS Tereshina 1,3 a , SA... more Page 1. Magnetic and magnetostrictive properties of Tb-Dy-Ho-Fe-Co alloys IS Tereshina 1,3 a , SA Nikitin 2,3 , GA Politova 2 , AS Ilyushin 2 , AA Opolenko 2 , GS Burkhanov 1 , OD Chistyakov 1 , T. Palewski 3 1Baikov Institute ...

Applied Physics Letters, 2014