Current-induced spin-wave excitations in a single ferromagnetic layer

Physical Review Letters

Volumn 90, Issue 10, 2003, Pages

  Ji, Y ^a   Chien, C L ^a   Stiles, M D ^b  

^a JOHNS HOPKINS UNIVERSITY   (United States)

^b NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

COBALT; CURRENT DENSITY; ELECTRON ENERGY LEVELS; ELECTRON SCATTERING; MAGNETIC FIELDS; MAGNETIC FILMS; MAGNETIZATION; MAGNETORESISTANCE; MATHEMATICAL MODELS; MULTILAYERS; PHASE DIAGRAMS; PHONONS;

CURRENT-INDUCED SPIN-TRANSFER TORQUE EFFECT; CURRENT-INDUCED SPIN-WAVE EXCITATION; FERROMAGNETIC LAYER; MAGNETIZATION REVERSAL; SPIN-TRANSFER INDUCED MAGNETIZATION;

FERROMAGNETIC MATERIALS;

EID: 0038303172     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (30)

1. J. Slonczewski, United States Patent No. 5 695 864, December 9, 1997.
2. M. N. Baibich, et al., Phys. Rev. Lett. 61, 2472 (1988).
3. L. Berger, Phys. Rev. B 54, 9353 (1996).
4. J. Slonczewski, J. Magn. Magn. Mater. 159, L1 (1996).
5. Ya. B. Bazaliy, B. Jones, and S.-C. Zhang, Phys. Rev. B 57, R3213 (1998).
6. M. Tsoi et al., Phys. Rev. Lett. 80, 4281 (1998).
7. M. Tsoi et al., Nature (London) 406, 46 (2000).
8. E. B. Myers et al., Science 285, 867 (1999).
9. J. A. Katine et al., Phys. Rev. Lett. 84, 3149 (2000).
10. J. Grollier et al., Appl. Phys. Lett. 78, 3663 (2001).
11. They also observed a resistance anomaly in zero applied field for a single Co layer.
12. J.-E. Wegrowe et al., Europhys. Lett. 45, 626 (1999).
13. J. Z. Sun, J. Magn. Magn. Mater. 202, 157 (1999).
14. X. Waintal et al., Phys. Rev. B 62, 12 317 (2000).
15. D.H. Hernando et al., Phys. Rev. B 62, 5700 (2000).
16. A. Bratass, Yu. V. Nazarov, and G.E.W. Bauer, Phys. Rev. Lett. 84, 2481 (2000).
17. K. Xia et al., Phys. Rev. B 65, 220401(R) (2002).
18. M. D. Stiles and A. Zangwill, J. Appl. Phys. 91, 6812 (2002)
19. M. D. Stiles and A. Zangwill, Phys. Rev. B 66, 014407 (2002).
20. C. Heide, Phys. Rev. Lett. 87, 197201 (2001).
21. C. Heide, P.E. Zilberman, and R.J. Elliott, Phys. Rev. B 63, 064424 (2001).
22. S. Zhang, P.M. Levy, and A. Fert, Phys. Rev. Lett. 88, 236601 (2002).
23. J. Slonczewski, J. Magn. Magn. Mater. 195, L261 (1999).
24. Ya. B. Bazaliy, B. A. Jones, and S.-C. Zhang, J. Appl. Phys. 89, 6793 (2001).
25. A. G. M. Jasen, A. P. Van Gelder, and P. Wyder, J. Phys. C 13, 6073 (1980).
26. G. Wexler, Proc. Phys. Soc. London 89, 927 (1966).
27. L. Piraux et al., Eur. Phys. J. B 4, 413 (1998).
28. A. Fert and L. Piraux, J. Magn. Magn. Mater. 200, 338 (1999).
29. J. Bass and W.P. Pratt, Jr., J. Magn. Magn. Mater. 200, 274 (1999).
30. Calculating the change in resistance due to the rotating magnetization in this model is complicated by the lateral inhomogeneity. For information current flow, van Hoff et al. [Phys. Rev. B 59, 138 (1999)] have calculated the domain wall resistance for Fe and Ni as a function of the layer-to-layer turn angle. For domain walls with turn angles as slow as 5° per layer, they find ΔG/G values comparable to typical ΔR/R values we measure.