Spin injection and electric-field effect in degenerate semiconductors

Physical Review B - Condensed Matter and Materials Physics

Volumn 69, Issue 16, 2004, Pages

  D'Amico, Irene ^a  

^a ISI FOUNDATION   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

ARTICLE; CORRELATION ANALYSIS; DENSITY; DIFFUSION; ELECTRIC FIELD; MOLECULAR INTERACTION; SEMICONDUCTOR; STRUCTURE ANALYSIS;

EID: 37649031278     PISSN: 01631829     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevB.69.165305     Document Type: Article

References (20)

1. G. Schmidt, D. Ferrand, L.W. Molenkamp, A.T. Filip, and B.J. van Wees, Phys. Rev. B 62, R4790 (2000).
2. Z.G. Yu and M.E. Flatté, Phys. Rev. B 66, 235302 (2002).
3. J.M. Kikkawa and D.D. Awschalom, Nature (London) 397, 139 (1999).
4. G. Schmidt, C. Gould, P. Grabs, A.M. Lunde, G. Richter, A. Slobodskyy, and L.W. Molenkamp, cond-mat/0206347 (unpublished).
5. I. D'Amico and G. Vignale, Phys. Rev. B 62, 4853 (2000).
6. I. D'Amico and G. Vignale, Europhys. Lett. 55, 566 (2001).
7. I. D'Amico and G. Vignale, Phys. Rev. B 65, 085109 (2002).
8. s implies that diffusion constant and spin-flip time vary roughly in an opposite way at low temperatures above the metal-insulator transition.
9. Equations (8) and (9) correspond to the limit in which the Drude scattering times for ↑ and ↓ spin population are equal; for the more general expressions see Ref. 7.
10. I. D'Amico and G. Vignale, Phys. Rev. B 59, 7876 (1999).
11. u.d strongly dependent on the drift term. For this reason we prefer to refer to them as "penetration" lengths.
12. P.C. van Son, H. van Kempen, and P. Wyder, Phys. Rev. Lett. 58, 2271 (1987).
13. A well known case is the (adiabatic) local-density approximation in (time-dependent) density-functional theory, see, for example, Ref. 10.
14. M.E. Flatté and J.M. Byers, Phys. Rev. Lett. 84, 4220 (2000).
15. G. Vignale and I. D'Amico, Solid State Commun. 127, 829 (2003).
16. G.A. Prinz, Science 282, 1660 (1998).
17. sc.
18. s when no external field is applied.
19. σ, we obtain P(x) ≪ 2.
20. J.J. Kikkawa and D.D. Awschalom, Phys. Rev. Lett. 80, 4313 (1998).