Giant magnetoresistance of magnetic multilayer point contacts

Physical Review B - Condensed Matter and Materials Physics

Volumn 60, Issue 14, 1999, Pages 10291-10301

  Hickey, B J ^c   Marrows, C H ^c   Caro, J ^a   Gribov, N N ^a   van Gorkom, R P ^a   Radelaar, S ^a  

^a DELFT UNIVERSITY OF TECHNOLOGY   (Netherlands)

^b DELFT UNIVERSITY OF TECHNOLOGY   (Netherlands)

^c UNIVERSITY OF LEEDS   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0042618061     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.60.10291     Document Type: Article

References (35)

1. M. N. Baibich, J. M. Broto, A. Fert, F. Nguyen, F. Petroff, P. Etienne, G. Creuzet, A. Friederich, and J. Chazelas, Phys. Rev. Lett. 61, 2472 (1988).
2. R. Schad, C. D. Potter, P. Belien, G. Verbanck, V. V. Moshchalkov, and Y. Bruynseraede, Appl. Phys. Lett. 64, 3500 (1994).
3. W. P. Pratt, Jr., S.-F. Lee, J. M. Slaughter, R. Loloee, P. A. Schroder, and J. Bass, Phys. Rev. Lett. 66, 3060 (1991). In later experiments these authors used NbTi contact strips, so that the magnetic-field range was extended to 3.5 T.
4. T. Valet and A. Fert, Phys. Rev. B 48, 7099 (1993).
5. M. A. M. Gijs, S. K. J. Lenczowski, and J. B. Giesbers, Phys. Rev. Lett. 70, 3343 (1993).
6. L. Piraux, J. M. George, J. F. Despres, C. Leroy, E. Ferain, R. Legras, K. Ounadjela, and A. Fert, Appl. Phys. Lett. 65, 2428 (1994).
7. A. Blondel, J. P. Meier, B. Doudin, and J. Ph. Ansermet, Appl. Phys. Lett. 65, 3019 (1994).
8. W. P. Pratt, Jr., S.-F. Lee, P. Holody, Q. Yang, R. Loloee, J. Bass, and P. A. Schroder, J. Magn. Magn. Mater. 126, 406 (1993).
9. K. M. Schep, P. J. Kelly, and G. E. W. Bauer, Phys. Rev. Lett. 74, 586 (1995).
10. G. E. W. Bauer, Phys. Rev. B 51, 16 984 (1995).
11. M. V. Tsoi, A. G. M. Jansen, and J. Bass, J. Appl. Phys. 81, 5530 (1997).
12. P. A. M. Holweg, J. Caro, A. H. Verbruggen, and S. Radelaar, Microelectron. Eng. 11, 27 (1990);
13. N. N. Gribov, J. Caro, and S. Radelaar, Physica B 97, 218 (1997).
14. N. N. Gribov, S. J. H. C. Theeeuwen, J. Caro, and S. Radelaar, Microelectron. Eng. 35, 317 (1997);
15. N. N. Gribov, S. J. C. H. Theeuwen, J. Caro, E. van der Drift, F. D. Tichelaar, T. R. de Kruijff, and B. J. Hickey, J. Vac. Sci. Technol. B 16, 3943 (1998).
16. S. S. P. Parkin, in Ultrathin Magentic Structures II, edited by B. Heinrich and J. A. C. Bland (Springer, New York, 1994), p. 173.
17. T. C. McGuire and I. R. Potter, IEEE Trans. Magn. 10, 1018 (1975).
18. W. Schwarzacher and D. S. Lashmore, IEEE Trans. Magn. 32, 3133 (1996);W. Schwarzacher (private communication).
19. I. K. Yanson, Fiz. Nizk. Temp, 9, 676 (1983) [Sov. J. Low Temp. Phys. 9, 343 (1983)].
20. J. C. Maxwell, A Treatise on Electricity and Magnetism (Dover, New York, 1954).
21. M. A. M. Gijs, J. B. Giesbers, S. K. J. Lenczowski, and H. H. J. M. Janssen, Appl. Phys. Lett. 63, 111 (1993).
22. ANSYS 5.3, Swanson Analysis Systems, Inc., Houston, PA 15342-0065, USA.
23. H. M. Swartjes, A. G. M. Jansen, and P. Wyder, Phys. Rev. B 38, 8114 (1988).
24. The differences with our result arise from the omission of the φ dependence in Ref. 11 and a too weak reduction of (Formula presented) by the φ-dependent term in Ref. 21. Another difference is that in Refs. 11 and 21 the identification (Formula presented) is made, which partially counteracts a too weak φ-dependent term or its absence.
25. B. J. Hickey, K. P. Wellock, and M. J. Walker, J. Appl. Phys. 81, 4476 (1997).
26. L. Tang and D. E. Laughlin, J. Appl. Phys. 81, 4906 (1997).
27. P. K. Krishnamoorthy and S. C. Sircar, Oxid. Met. 2, 349 (1970).
28. C. L. Chien, J. Q. Xiao, and J. S. Jiang, J. Appl. Phys. 73, 5309 (1993).
29. J. Xu, M. A. Howson, E. Kolb, P. Veillet, and A. Pelford-Long, J. Magn. Magn. Mater. 192, 35 (1999).
30. To be consistent with the multilayer contacts, we define the GMR ratio for the granular contacts as (Formula presented) although for granular systems an alternative definition is sometimes preferred.
31. I. S. Jacobs and C. P. Bean, in Magnetism III, edited by G. T. Rado and H. Suhl (Academic, New York, 1963), p. 271.
32. I. O. Kulik, R. I. Shekhter, and A. G. Shkorbatov, Zh. Ek´sp. Teor. Fiz. 81, 2126 (1981) [Sov. Phys. JETP 54, 1130 (1981)].
33. I. K. Yanson, I. O. Kulik, and A. G. Batrak, J. Low Temp. Phys. 42, 527 (1981).
34. N. Garcia, M. Munoz, and Y.-W. Zhao, Phys. Rev. Lett. 82, 2923 (1999).
35. R. P. van Gorkom, J. Caro, S. J. H. C. Theeuwen, K. P. Wellock, N. N. Gribov, and S. Radelaar, Appl. Phys. Lett. 74, 422 (1999).