Induced Magnetic Anisotropy and Spin Polarization in Pulsed Laser-Deposited Co2MnSb Thin Films

Authors

Moti R. Paudel, Southern Illinois University Carbondale
Christopher S. Wolfe, Southern Illinois University Carbondale
Arjun K. Pathak, Southern Illinois University Carbondale
Igor Dubenko, Southern Illinois University Carbondale
Naushad Ali, Southern Illinois University Carbondale
M. S. Osofsky, Naval Research Laboratory
Joseph C. Prestigiacomo, Louisiana State University
Shane Stadler, Louisiana State University

Comments

© 2012 American Institute of Physics

Published in Journal of Applied Physics, Vol. 111 No. 2 (2012) at doi: 10.1063/1.3676264

Abstract

Co₂MnSb thin films were grown on glass and GaAs (001) substrates using pulsed laser deposition. The films were grown in magnetic fields (H_G = 500 Oe and 0 Oe) that were applied in the plane of the substrate during the deposition process. Angle-dependent magneto-optic Kerr effect measurements for films grown on glass revealed a uniaxial magnetic anisotropy in the direction of the applied growth field. Films grown on GaAs (001) exhibited more complicated magnetic anisotropy behavior, due to additional contributions from the substrate. Point contact Andreév reflection spectroscopy measurements indicated that the spin polarizations of the films were about P~ 50%, with negligible difference between films grown in zero and non-zero applied fields.

Recommended Citation

Paudel, Moti R., Wolfe, Christopher S., Pathak, Arjun K., Dubenko, Igor, Ali, Naushad, Osofsky, M. S., Prestigiacomo, Joseph C. and Stadler, Shane. "Induced Magnetic Anisotropy and Spin Polarization in Pulsed Laser-Deposited Co2MnSb Thin Films." (Jan 2012).