Abeer Barasheed | McGill University (original) (raw)
Address: Montr�al, Canada
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Papers by Abeer Barasheed
![Research paper thumbnail of Publisher's Note: Optically defined mechanical geometry [Phys. Rev. A93, 053811 (2016)]](https://attachments.academia-assets.com/85254862/thumbnails/1.jpg)
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ACS Applied Materials & Interfaces, 2013
We report the evolution of high temperature thermoelectric properties of SrTiO3 thin films doped ... more We report the evolution of high temperature thermoelectric properties of SrTiO3 thin films doped with Nb and oxygen vacancies. Structure-property relations in this important thermoelectric oxide are elucidated and the variation of transport properties with dopant concentrations is discussed. Oxygen vacancies are incorporated during growth or annealing in Ar/H2 above 800 K. An increase in lattice constant due to the inclusion of Nb and oxygen vacancies is found to result in an increase in carrier density and electrical conductivity with simultaneous decrease in carrier effective mass and Seebeck coefficient. The lattice thermal conductivity at 300 K is found to be 2.22 W m(-1) K(-1), and the estimated figure of merit is 0.29 at 1000 K.
Journal of Materials Research and Technology
ACS Applied Materials & Interfaces, 2013
In the field of optomechanics, radiation forces have provided a particularly high level of contro... more In the field of optomechanics, radiation forces have provided a particularly high level of control over the frequency and dissipation of mechanical elements. Here we propose a class of optomechanical systems in which light exerts a similarly profound influence over two other fundamental parameters: geometry and mass. By applying an optical trap to one lattice site of an extended phononic crystal, we show it is possible to create a tunable, localized mechanical mode. Owing to light's simultaneous and constructive coupling with the structure's continuum of modes, we estimate that a trap power at the level of a single intracavity photon should be capable of producing a significant effect within a realistic, chip-scale device.
We report the evolution of high temperature thermoelectric properties of SrTiO3 thin films doped ... more We report the evolution of high temperature thermoelectric properties of SrTiO3 thin films doped with Nb and
oxygen vacancies. Structure−property relations in this important thermoelectric oxide are elucidated and the variation of
transport properties with dopant concentrations is discussed. Oxygen vacancies are incorporated during growth or annealing in
Ar/H2 above 800 K. An increase in lattice constant due to the inclusion of Nb and oxygen vacancies is found to result in an
increase in carrier density and electrical conductivity with simultaneous decrease in carrier effective mass and Seebeck coefficient.
The lattice thermal conductivity at 300 K is found to be 2.22 W m−1 K−1, and the estimated figure of merit is 0.29 at 1000 K.
ACS Applied Materials & Interfaces, 2013
We report the evolution of high temperature thermoelectric properties of SrTiO3 thin films doped ... more We report the evolution of high temperature thermoelectric properties of SrTiO3 thin films doped with Nb and oxygen vacancies. Structure-property relations in this important thermoelectric oxide are elucidated and the variation of transport properties with dopant concentrations is discussed. Oxygen vacancies are incorporated during growth or annealing in Ar/H2 above 800 K. An increase in lattice constant due to the inclusion of Nb and oxygen vacancies is found to result in an increase in carrier density and electrical conductivity with simultaneous decrease in carrier effective mass and Seebeck coefficient. The lattice thermal conductivity at 300 K is found to be 2.22 W m(-1) K(-1), and the estimated figure of merit is 0.29 at 1000 K.
Journal of Materials Research and Technology
ACS Applied Materials & Interfaces, 2013
In the field of optomechanics, radiation forces have provided a particularly high level of contro... more In the field of optomechanics, radiation forces have provided a particularly high level of control over the frequency and dissipation of mechanical elements. Here we propose a class of optomechanical systems in which light exerts a similarly profound influence over two other fundamental parameters: geometry and mass. By applying an optical trap to one lattice site of an extended phononic crystal, we show it is possible to create a tunable, localized mechanical mode. Owing to light's simultaneous and constructive coupling with the structure's continuum of modes, we estimate that a trap power at the level of a single intracavity photon should be capable of producing a significant effect within a realistic, chip-scale device.
We report the evolution of high temperature thermoelectric properties of SrTiO3 thin films doped ... more We report the evolution of high temperature thermoelectric properties of SrTiO3 thin films doped with Nb and
oxygen vacancies. Structure−property relations in this important thermoelectric oxide are elucidated and the variation of
transport properties with dopant concentrations is discussed. Oxygen vacancies are incorporated during growth or annealing in
Ar/H2 above 800 K. An increase in lattice constant due to the inclusion of Nb and oxygen vacancies is found to result in an
increase in carrier density and electrical conductivity with simultaneous decrease in carrier effective mass and Seebeck coefficient.
The lattice thermal conductivity at 300 K is found to be 2.22 W m−1 K−1, and the estimated figure of merit is 0.29 at 1000 K.