Spin-valve effect in a carbon atomic wire

Physical Review B - Condensed Matter and Materials Physics

Volumn 70, Issue 19, 2004, Pages 1-4

  Wei, Yadong ^a   Xu, Yan ^b   Wang, Jian ^b,c   Guo, Hong ^d  

^a SHENZHEN UNIVERSITY   (China)

^b UNIVERSITY OF HONG KONG   (Hong Kong)

^c INSTITUTE OF SOLID STATE PHYSICS   (China)

^d MCGILL UNIVERSITY   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

CARBON;

ARTICLE; ATOMIC PARTICLE; CONDUCTANCE; ELECTRIC CURRENT; MAGNETIC FIELD; MATHEMATICAL ANALYSIS; THEORETICAL STUDY;

EID: 12344338193     PISSN: 01631829     EISSN: None     Source Type: Journal    
DOI: 10.1103/physrevb.70.193406     Document Type: Article

References (32)

1. G.A. Prinz, Science 282, 1660 (1998); A. Wolf et al., ibid. 294, 1488 (2001).
2. G.A. Prinz, Science 282, 1660 (1998); A. Wolf et al., ibid. 294, 1488 (2001).
3. J.C. Slonczewski, Phys. Rev. B 39, 6995 (1989).
4. M. Julliere, Phys. Lett. 54A, 225 (1975).
5. J.S. Moodera, J. Nowak, and R.J. M. van de Veerdonk, Phys. Rev. Lett. 80, 2941 (1998).
6. K. Tsukagoshi, B.W. Alphenaar, and H. Ago, Nature (London) 401, 572 (1999).
7. X.D. Zhang, B.Z. Li, G. Sun, and F.C. Pu, Phys. Rev. B 56, 5484 (1997).
8. A.M. Bratkovsky, Phys. Rev. B 56, 2344 (1997).
9. S. Zhang, P.M. Levy, A.C. Marley, and S.S.P. Parkin, Phys. Rev. Lett. 79, 3744 (1997).
10. J. Barnaś and A. Fert, Phys. Rev. Lett. 80, 1058 (1998).
11. A. Brataas, Yu.V. Nazarov, J. Inoue, and G.E.W. Bauer, Phys. Rev. B 59, 93 (1999).
12. L. Sheng, Y. Chen, H.Y. Teng, and C.S. Ting, Phys. Rev. B 59, 480 (1999).
13. H. Mehrez, J. Taylor, H. Guo, J. Wang, and C. Roland, Phys. Rev. Lett. 84, 2682 (2000).
14. B.G. Wang, J. Wang, and H. Guo, J. Phys. Soc. Jpn. 70, 2645 (2001).
15. N. Sergueev, Q.F. Sun, H. Guo, B.G. Wang, and J. Wang, Phys. Rev. B 65, 165303 (2002).
16. F. Mireles and G. Kirczenow, Phys. Rev. B 66, 214415 (2002).
17. B. Zhao et al., Appl. Phys. Lett. 80, 3144 (2002).
18. S. Krompiewski, R. Gutiérrez, and G. Cuniberti, Phys. Rev. B 69, 155423 (2004).
19. L. Wang, J.J. Qiu, W.J. McMahon, K.B. Li, and Y.H. Wu, Phys. Rev. B 69, 214402 (2004).
20. For a recent review, see, for example, M.A. Ratner, Mater. Today 5, 20 (2002).
21. N.D. Lang and Ph. Avouris, Phys. Rev. Lett. 81, 3515 (1998); Phys. Rev. Lett. 84, 358 (2000).
22. N.D. Lang and Ph. Avouris, Phys. Rev. Lett. 81, 3515 (1998); Phys. Rev. Lett. 84, 358 (2000).
23. B. Larade, J. Taylor, H. Mehrez, and H. Guo, Phys. Rev. B 64, 075420 (2001).
24. The NEGF-DFT package MCDCAL is discussed in J. Taylor, H. Guo, and J. Wang, Phys. Rev. B 63, 245407 (2001); Phys. Rev. B 63, 121104(R) (2001).
25. The NEGF-DFT package MCDCAL is discussed in J. Taylor, H. Guo, and J. Wang, Phys. Rev. B 63, 245407 (2001); Phys. Rev. B 63, 121104(R) (2001).
26. M. Brandbyge, J.-L. Mozos, P. Ordejón, J. Taylor, and K. Stokbro, Phys. Rev. B 65, 165401 (2002).
27. D.R. Hamann, M. Schluter, and C. Chiang, Phys. Rev. Lett. 43, 1494 (1982).
28. In our calculations, an Al electrode is composed of unit cells with nine Al atoms oriented in the (100) direction repeated to ±∞. The scattering region contains four layers of the Al atoms on either side of the molecule. The carbon atoms in contact with the electrodes are positioned at the hollow site for Al electrodes. We fixed the contact distance to be d=2.0 Å. The separation between carbon atoms is 1.3225 Å (see Ref. 27).
29. It would be better to use the lead made of transition metal rather than Al lead.
30. H.J. Choi, J. Ihm, S.G. Louie, and M.L. Cohen, Phys. Rev. Lett. 84, 2917 (2000).
31. For carbon nanotubes, the orbital magnetic moment in the presence of an axial magnetic field can be 10 or 20 times of Bohr magneton (see Ref. 29).
32. E.D. Minot, Y. Yaish, V. Sazonova, and P.L. McEuen, Nature (London) 428, 536 (2004).