Spin Torque in Semiconductor Single Planar Tunnel Junctions

• Authors: M. Wilczyński , J. Barnaś , R. Świrkowicz
• Languages of publication: EN

Abstracts

EN

Transport in a single planar tunnel junction with electrodes made of a ferromagnetic semiconductor is analyzed theoretically in the zero- -temperature limit. Tunneling current and both (in-plane and out-of-plane) components of the spin torque exerted on one of the ferromagnetic electrodes are determined as a function of the angle\thet a between magnetic moments of the electrodes. The influence of the bias voltage and spin splitting of the electron band (in both electrodes) on the spin torque components is analyzed numerically.

Keywords

EN

73.40.Gk; 73.40.Ty

Discipline

• 73.40.Gk: Tunneling(for tunneling in quantum Hall effects, see 73.43.Jn)
• 73.40.Ty: Semiconductor-insulator-semiconductor structures

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 1
• Pages: 35-38

Dates

published

2008-01

received

2007-07-09

Contributors

author

M. Wilczyński

• Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland

author

J. Barnaś

• Department of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
• Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland

author

R. Świrkowicz

• Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland

References

• 1. J. C. Slonczewski, Phys. Rev. B 71, 024411 (2005); 39, 6995 (1989)
• 2. Y. Huai, F. Albert, P. Nguyen, M. Pakala, T. Valet, Appl. Phys. Lett. 84, 3118 (2004)
• 3. D. Chiba, Y. Sato, T. Kita, F. Matsukura, H. Ohno, Phys. Rev. Lett. 93, 216602 (2004); M. Elsen, O. Boulle, J. -M. George, H. Jaffrès, R. Mattana, V. Cros, A. Fert, A. Lemaitre, R. Giraud, G. Faini, Phys. Rev. B 73, 035303 (2006)
• 4. I. Theodonis, N. Kioussis, A. Kalitsov, M. Chshiev, W. H. Butler, Phys. Rev. Lett. 97, 237205 (2006)
• 5. M. Wilczyński, J. Barnaś, Acta Phys. Pol. A 97, 443 (2000)

Identifiers

DOI

10.12693/APhysPolA.113.35