Magnetization Transport and Quantized Spin Conductance

Physical Review Letters

Volumn 90, Issue 16, 2003, Pages 4-

  Meier, Florian ^a   Loss, Daniel ^a  

^a UNIVERSITY OF BASEL   (Switzerland)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 85038306097     PISSN: 00319007     EISSN: 10797114     Source Type: Journal    
DOI: 10.1103/PhysRevLett.90.167204     Document Type: Article

References (24)

1. S.A. Wolf et al, Science10.1126/science.1065389 294, 1488 (2001).
2. Semiconductor Spintronics and Quantum Computation, edited by D.D. Awschalom, D. Loss, and N. Samarth (Springer-Verlag, Berlin, 2002), and references therein.
3. D. Forster, Hydrodynamic Fluctuations, Broken Symmetry, and Correlation Functions (Benjamin, Reading, 1975).
4. J.C. Slonczewski, Phys. Rev. B10.1103/PhysRevB.39.6995 39, 6995 (1989).
5. See, e.g., H. Castella, X. Zotos, and P. Prelovšek, Phys. Rev. Lett.10.1103/PhysRevLett.74.972 74, 972 (1995);
6. X. Zotos, Phys. Rev. Lett.10.1103/PhysRevLett.82.1764 82, 1764 (1999);
7. J.V. Alvarez and C. Gros, Phys. Rev. Lett.10.1103/PhysRevLett.88.077203 88, 077203 (2002).
8. S. Datta, Electronic Transport in Mesoscopic Systems (Cambridge University Press, Cambridge, England, 1995).
9. D.C. Mattis, The Theory of Magnetism I (Springer-Verlag, Berlin, 1981).
10. E. Fradkin, Field Theories of Condensed Matter Systems (Addison-Wesley, Reading, 1991).
11. F.D.M. Haldane, Phys. Rev. Lett.10.1103/PhysRevLett.45.1358 45, 1358 (1980).
12. F.D.M. Haldane, Phys. Rev. Lett.10.1103/PhysRevLett.50.1153 50, 1153 (1983).
13. I. Affleck, J. Phys. Condens. Matter10.1088/0953-8984/1/19/001 1, 3047 (1989).
14. R. Shankar, Int. J. Mod. Phys. B 4, 2371 (1990).
15. D.L. Maslov and M. Stone, Phys. Rev. B 52, R5539 (1995).
16. S. Allen and D. Loss, Physica (Amsterdam) 239A, 47 (1997).
17. S. Eggert, I. Affleck, and M. Takahashi, Phys. Rev. Lett.10.1103/PhysRevLett.73.332 73, 332 (1994).
18. A.V. Sologubenko et al, Phys. Rev. B10.1103/PhysRevB.64.054412 64, 054412 (2001);
19. C. Hess et al, Phys. Rev. B10.1103/PhysRevB.64.184305 64, 184305 (2001).
20. Picovolt sensitivity is reported, e.g., in A.H. Miklich et al, Appl. Phys. Lett.10.1063/1.113555 66, 230 (1995).
21. Interactions not included in the Hamiltonian Eq.� 1 could lead to a relaxation of the magnetization in the reservoirs within the spin-lattice relaxation time (Formula presented). For a static (Formula presented), (Formula presented) vanishes for (Formula presented). This problem can be avoided by an ac measurement where (Formula presented) oscillates with a frequency (Formula presented), with (Formula presented). (Formula presented) can be estimated from the linewidth in ferromagnetic resonance. For example, for YIG, (Formula presented) [Z. Zhang et al, Appl. Phys. Lett.10.1063/1.122359 73, 2036 (1998)].
22. Alternatively, the magnetization could be maintained with a “spin battery” of the type proposed in A. Brataas, Y. Tserkovnyak, G.E.W. Bauer, and B.I. Halperin, Phys. Rev. B10.1103/PhysRevB.66.060404 66, 060404(R) (2002).
23. Y. Aharonov and A. Casher, Phys. Rev. Lett.10.1103/PhysRevLett.53.319 53, 319 (1984).
24. R.L. Douglass, Phys. Rev.10.1103/PhysRev.129.1132 129, 1132 (1963).