Domain-wall induced phase shifts in spin waves

Physical Review Letters

Volumn 93, Issue 25, 2004, Pages

  Hertel, Riccardo ^a,b   Wulfhekel, Wulf ^a   Kirschner, Jürgen ^a  

^a MAX PLANCK INSTITUTE OF MICROSTRUCTURE PHYSICS   (Germany)

^b FORSCHUNGSZENTRUM JÜLICH   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

GYROMAGNETIC RATIO; LANDAU-LIFSHITZ-GILBERT (LLG) EQUATION; SPIN WAVES; ZEEMAN ENERGY;

ANISOTROPY; BOUNDARY ELEMENT METHOD; COMPUTER SIMULATION; DAMPING; DIFFERENTIAL EQUATIONS; FERROMAGNETIC MATERIALS; FINITE ELEMENT METHOD; INTEGRATION; MAGNETIC FIELDS; MAGNETIZATION; MAGNETOSTATICS; PHASE SHIFT; THIN FILMS; WAVE PROPAGATION;

MAGNETIC DOMAINS;

EID: 42749103597     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevLett.93.257202     Document Type: Article

References (30)

1. S. A. Wolf, D. D. Awschalom, R. A. Buhrman, J. M. Daughton, S. von Molnár, M. L. Roukes, A. Y. Chtchelkanova, and D. M. Treger, Science 294, 1488 (2001).
2. B. C. Choi, M. Belov, G. Ballentine, and M. Freeman, Phys. Rev. Lett. 86, 728 (2001).
3. Y. Acremann, M. Buess, C. H. Back, M. Dumm, G. Bayreuther, and D. Pescia, Nature (London) 414, 51 (2001).
4. R. H. Koch, J. G. Deak, W. Abraham, P. L. Trouilloud, R. A. Altman, Y. Lu, W. J. Gallagher, R. Scheuerlein, and S. P. P. Parkin, Phys. Rev. Lett. 81, 4512 (1998).
5. T. Gerrits, H. van den Berg, J. Hohlfeld, L. Bär, and T. Rasing, Nature (London) 418, 509 (2002).
6. A. Aharoni, Introduction to the Theory of Ferromagnetism (Clarendon Press, Oxford, 1996).
7. A. Hubert and R. Schäfer, Magnetic Domains - The Analysis of Magnetic Microstructures (Springer, Berlin, 1998).
8. A. Wachowiak, J. Wiebe, M. Bode, O. Pietzsch, M. Morgenstern, and R. Wiesendanger, Science 298, 577 (2002).
9. A. Yamasaki, W. Wulfhekel, R. Hertel, S. Suga, and J. Kirschner, Phys. Rev. Lett. 91, 127201 (2003).
10. W. F. Brown, Jr., Micromagnetics (John Wiley & Sons, New York, 1963).
11. R. Kikuchi, J. Appl. Phys. 27, 1352 (1956).
12. C. Serpico, I. D. Mayergoyz, and G. Bertotti, J. Appl. Phys. 93, 6909 (2003).
13. R. Hertel, J. Appl. Phys. 90, 5752 (2001).
14. A. C. Hindmarsh, in Scientific Computing, edited by R. S. Stepleman et al. (North Holland, Amsterdam, 1983), pp. 55-64.
15. Small deviations from the homogeneity occur only at the corners. They are due to nonuniformities of the demagnetizing field in these regions [16]. This slight fanning is not significant for the present study.
16. M. E. Schabes and H. N. Bertram, J. Appl. Phys. 64, 1347 (1988).
17. R. D. McMichael and M. J. Donahue, IEEE Trans. Magn. 33, 4167 (1997).
18. Y. Aharonov and D. Bohm, Phys. Rev. 115, 485 (1959).
19. A. van Oudenaarden, M. H. Devoret, Y. V. Nazarov, and J. E. Mooij, Nature (London) 391, 768 (1998).
20. J. Rothman, M. Kläui, L. Lopez-Diaz, C. A. F. Vaz, A. Bleloch, J. A. C. Bland, Z. Cui, and R. Speaks, Phys. Rev. Lett. 86, 1098 (2001).
21. J.-G. Zhu, Y. Zheng, and G. A. Prinz, J. Appl. Phys. 87, 6668 (2000).
22. F. J. Castano, C. A. Ross, C. Frandsen, A. Eilez, D. Gil, H. Smith, M. Redjdal, and F. B. Humphrey, Phys. Rev. B 67, 184425 (2003).
23. J. H. Hannay, J. Phys. A 18, 221 (1985).
24. M. V. Berry, J. Phys. A 18, 15 (1985).
25. H.-B. Braun and D. Loss, Phys. Rev. B 53, 3237 (1996).
26. S. O. Demokritov, A. Serga, V. Demidov, B. Hillebrands, M. Kostylev, and B. A. Kalinikos, Nature (London) 426, 159 (2003).
27. A. N. Slavin, O. Büttner, M. Bauer, S. O. Demokritov, B. Hillebrands, M. P. Kostylev, B. A. Kalinikoe, V. V. Grimalsky, and Y. Rapoport, Chaos 13, 693 (2003).
28. A. A. Serga, S. O. Demokritov, B. Hillebrands, S. Min, and A. N. Slavin, J. Appl. Phys. 93, 8585 (2003).
29. As the phase shift depends on frequency, the signal should be carried by a specific frequency. In our case, we obtained the maximum signal to noise at around 22 GHz.
30. D. A. Allwood, Gang Xiong, M. D. Cooke, C. C. Faulkner, D. Atkinson, N. Vernier, and R. Cowburn, Science 296, 2003 (2002).