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Field dependences of the magnetization and exchange bias in ferro/antiferromagnetic systems. II. Continuum model of a ferromagnetic layer

Low Temp. Phys. 35, 526 (2009); doi:10.1063/1.3168638

Issue Date: July 2009

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A. G. Grechnev and A. S. Kovalev
B. I. Verkin Institute for Low-Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, pr. Lenina 47, Kharkov 61103, Ukraine

M. L. Pankratova
V. N. Karazin Kharkov National University, pl. Svobody 4, Kharkov 61107, Ukraine
A model giving a qualitative explanation of the results of an experimental investigation of the field dependences of the magnetization in ferro- and antiferromagnetic media in contact with one another is proposed. In this model a thin ferromagnetic (FM) film with strong easy-plane anisotropy is described in the continuum approximation. It is shown that collinear and canted structures of the ferromagnetic layer can co-exist in the system studied. The ranges of the parameters (exchange interactions in the FM layer and through the FM/AFM interface, thickness of the FM layer, and magnitude of the external magnetic field) where a nonuniform state of the FM exists are found and explicit analytic expressions are obtained for the distribution of the magnetization in this state. The dependences of the total magnetization of the system on the magnitude of the external field are constructed in the physically important cases of “thin” and “thick” FM layers, and it is demonstrated that the experimentally observed unsymmetric dependence M(H) is possible. The results of the present work are compared with our previous results obtained using simpler model of a two-layer FM subsystem. ©2009 American Institute of Physics
History: Submitted 16 March 2009
Permalink: http://link.aip.org/link/?LTPHEG/35/526/1
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KEYWORDS and PACS

Keywords
PACS
  • 75.60.Ej
    Magnetization curves, hysteresis, Barkhausen and related effects
  • 75.50.Ee
    Antiferromagnetics
  • 75.70.Cn
    Magnetic properties of interfaces
  • 75.30.Et
    Exchange and superexchange interactions in magnetically ordered materials
  • 75.30.Gw
    Magnetic anisotropy
  • YEAR: 2009

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ISSN:
1063-777X (print)   1090-6517 (online)
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REFERENCES (17)
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For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.
  1. W. H. Meiklejohn and C. P. Bean, Phys. Rev. 102, 1413 (1956).
  2. J. Nogués and I. K. Schuller, J. Magn. Magn. Mater. 192, 203 (1999).
  3. A. E. Berkowitz and K. Takano, J. Magn. Magn. Mater. 200, 552 (1999).
  4. L. Neel, Ann. Phys. (Paris) 2, 61 (1997).
  5. D. Mauri, H. C. Siegmann, P. S. Bagus, and E. Kay, J. Appl. Phys. 62, 3047 (1987).
  6. M. Kiwi, J. Mejfa-López, R. D. Portugal, and R. Ramírez, Appl. Phys. Lett. 75, 2995 (1999).
  7. M. Kiwi, J. Mejfa-López, R. D. Portugal, and R. Ramírez, Europhys. Lett. 48, 573 (1999).
  8. M. Kiwi, J. Mejfa-López, R. D. Portugal, and R. Ramírez, Solid State Commun. 116, 315 (2000).
  9. J. Mejfa-López, R. Ramírez, and M. Kiwi, J. Magn. Magn. Mater. 241, 346 (2002).
  10. M. D. Stiles and R. D. McMichael, Phys. Rev. B 59, 3722 (1999).
  11. M. R. Fitzsimmons, P. Yasliar, C. Leighton, J. Nogués, J. Dura, C. F. Majkrzak, and I. K. Schuller, Phys. Rev. Lett. 84, 3986 (2000).
  12. M. Gierlings, M. J. Prandolini, H. Fritzshe, M. Gruyters, and D. Riegel, Phys. Rev. B 65, 092407 (2002).
  13. A. Hoffmann, Phys. Rev. Lett. 93, 097203 (2004).
  14. D. N. Merenkov, A. N. Bludov, S. L. Gnatchenko, M. Baran, R. Szymczak, and V. A. Novosad, Fiz. Nizk. Temp. 33, 1260 (2007)
    15. [Low Temp. Phys. 33, 957 (2007)].
  15. S. L. Gnatchenko, D. N. Merenkov, A. N. Bludov, V. V. Pishko, Yu. A. Shakhayeva, M. Baran, R. Szymczak, and V. A. Novosad, J. Magn. Magn. Mater. 307, 263 (2006).
  16. A. G. Grechnev, A. S. Kovalev, and M. L. Pankratova, Fiz. Nizk. Temp. 35, 603 (2009)
    17. [Low Temp. Phys. 35, No. 6 (2009)].
  17. E. Goto, N. Hayashi, and T. Miyashita, J. Appl. Phys. 36, 2951 (1965).

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