Direct observation of domain-wall pinning at nanoscale constrictions

Applied Physics Letters

Volumn 87, Issue 10, 2005, Pages

  Klaui M ^a   Ehrke, H ^a   Rudiger U ^a   Kasama, T ^b,c   Dunin Borkowski, R E ^b,c   Backes, D ^a,d   Heyderman, L J ^d   Vaz, C A F ^e   Bland, J A C ^e   Faini, G ^f   Cambril, E ^f   Wernsdorfer, W ^g  

^a UNIVERSITY OF KONSTANZ   (Germany)

^b RIKEN   (Japan)

^c UNIVERSITY OF CAMBRIDGE   (United Kingdom)

^d PAUL SCHERRER INSTITUTE   (Switzerland)

^e UNIVERSITY OF CAMBRIDGE   (United Kingdom)

^f CNRS   (France)

^g LABORATOIRE DE CRISTALLOGRAPHIE   (France)

Author keywords

[No Author keywords available]

Indexed keywords

DEPINNING FIELDS; PERMALLOY NANOSTRUCTURES; SPATIAL RESOLUTION; SPIN STRUCTURE;

ELECTRON HOLOGRAPHY; LOW TEMPERATURE EFFECTS; MAGNETIC DOMAINS; MAGNETORESISTANCE;

NANOTECHNOLOGY;

EID: 24644524526     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.2042542     Document Type: Article

References (19)

1. D. A. Allwood, G. Xiong, M. D. Cooke, C. C. Faulkner, D. Atkinson, N. Vernier, and R. P. Cowburn, Science 296, 5575 (2002).
2. A. Yamaguchi, T. Ono, S. Nasu, K. Miyake, K. Mibu, and T. Shinjo, Phys. Rev. Lett. 92, 077205 (2004).
3. M. Kläui, C. A. F. Vaz, J. A. C. Bland, W. Wernsdorfer, G. Faini, E. Cambril, L. J. Heyderman, F. Nolting, and U. Rüdiger, Phys. Rev. Lett. 94, 106601 (2005).
4. L. Lopez-Diaz, M. Kläui, J. Rothman, and J. A. C. Bland, Physica B 306, 211 (2001).
5. J. Grollier, D. Lacour, V. Cros, H. Hamzic, A. Vaures, A. Fert, D. Adam, and G. Faini, J. Appl. Phys. 92, 4825 (2002).
6. M. Kläui, C. A. F. Vaz, A. Lapicki, T. Suzuki, Z. Cui, and J. A. C. Bland, Microelectron. Eng. 73, 785 (2004).
7. J. Grollier, P. Boulenc, V. Cros, A. Hamzić, A. Vaur̀s, and A. Fert, Appl. Phys. Lett. 83, 509 (2003).
8. D. A. Allwood, G. Xiong, and R. P. Cowburn, Appl. Phys. Lett. 85, 2848 (2004).
9. A. Himeno, T. Okuno, S. Kasai, T. Ono, S. Nasu, K. Mibu, and T. Shinjo, J. Appl. Phys. 97, 66101 (2005).
10. M. Kläui, C. A. F. Vaz, J. Rothman, J. A. C. Bland, W. Wernsdorfer, G. Faini, and E. Cambril, Phys. Rev. Lett. 90, 097202 (2003).
11. M. Kläui, C. A. F. Vaz, W. Wernsdorfer, E. Bauer, S. Cherifi, S. Heun, A. Locatelli, G. Faini, E. Cambril, and L. J. Heyderman, and J. A. C. Bland, Physica B 343, 343 (2004).
12. A. J. Zambano and W. P. Pratt Jr., Appl. Phys. Lett. 85, 1562 (2004).
13. L. J. Heyderman, M. Kläui, R. E. Schäublin, U. Rüdiger, C. A. F. Vaz, J. A. C. Bland, and C. David, J. Magn. Magn. Mater. 290, 86 (2005).
14. R. E. Dunin-Borkowski, M. R. McCartney, B. Kardynal, S. S. P. Parkin, M. R. Scheinfein, and D. J. Smith, J. Microsc. 200, 187 (2000).
15. M. Kläui, C. A. F. Vaz, J. A. C. Bland, E. H. C. P. Sinnecker, A. P. Guimaraes, W. Wernsdorfer, G. Faini, E. Cambril, L. J. Heyderman, and C. David, Appl. Phys. Lett. 84, 951 (2004).
16. In the MR experiment, the vortex walls were deliberately positioned on one side of the constriction, so that the walls were pulled away from the notch, not through the constriction.
17. The free OOMMF package is available at http://math.nist.gov/oommf.
18. M. Kläui, C. A. F. Vaz, J. A. C. Bland, L. J. Heydermand, F. Nolting, A. Pavlovska, E. Bauer, S. H. S. Cherifi, and A. Locatelli, Appl. Phys. Lett. 85, 5637 (2004).
19. M. Laufenberg, M. Kläui, and U. Rüdiger (unpublished).