Micromagnetic Approach to Exchange Bias

• Authors: J. Dubowik , I. Gościańska
• Languages of publication: EN

Abstracts

EN

We present a micromagnetic approach to the exchange bias in ferromagnetic/antiferromagnetic thin film systems with a small number of irreversible interfacial magnetic moments. We express the exchange bias field H_{EB} in terms of the fundamental micromagnetic length scale of ferromagnetic - the exchange length l_{ex}. The benefit from this approach is a better separation of the factor related to the ferromagnetic layer from the factor related to the ferromagnetic/antiferromagnetic coupling at interfaces. Using this approach we estimate the upper limit of H_{EB} in real ferromagnetic/antiferromagnetic systems.

Keywords

EN

75.30.Gw; 75.30.Et; 75.60.Jk

Discipline

• 75.30.Et: Exchange and superexchange interactions(see also 71.70.Gm Exchange interactions)
• 75.30.Gw: Magnetic anisotropy
• 75.60.Jk: Magnetization reversal mechanisms

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 2
• Pages: 147-152

Dates

published

2015-02

Contributors

author

J. Dubowik

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, PL-60-179, Poznań, Poland

author

I. Gościańska

• Faculty of Physics, A. Mickiewicz University, Umultowska 85, PL-61-614, Poznań, Poland

References

• [1] W.H. Meiklejohn, C.P. Bean, Phys. Rev. 102, 1413 (1956), doi: 10.1103/PhysRev.102.1413
• [2] D. Suess, M. Kirschner, T. Schrefl, J. Fidler, R.L. Stamps, J.-V. Kim, Phys. Rev. B 67, 054419 (2003), doi: 10.1103/PhysRevB.67.054419
• [3] Z.-P. Li, O. Petracic, R. Morales, J. Olamit, X. Batlle, K. Liu, I.K. Schuller, Phys. Rev. Lett. 96, 217205 (2006), doi: 10.1103/PhysRevLett.96.217205
• [4] M. Fecioru-Morariu, U. Nowak, G. Güntherodt, in: Magnetic Properties of Antiferromagnetic Oxide Materials, Eds. L. Dúo, M. Finazzi, F. Ciccacci, Wiley-VCH, Weinheim 2010, Ch. 5
• [5] J. Nogues, I.K. Schuller, J. Magn. Magn. Mater. 192, 203 (1999), doi: 10.1016/S0304-8853(98)00266-2
• [6] A.E. Berkowitz, K. Takano, J. Magn. Magn. Mater. 200, 552 (1999), doi: 10.1016/S0304-8853(99)00453-9
• [7] H. Ohldag, T.J. Regan, J. Stöhr, A. Scholl, F. Nolting, J. Lüning, C. Stamm, S. Anders, R.L. White, Phys. Rev. Lett. 87, 247201 (2001), doi: 10.1103/PhysRevLett.87.247201
• [8] J. Stöhr, H. Siegmann, Magnetism: From Fundamentals to Nanoscale Dynamics, Springer Series in Solid-State Sciences, Springer, Berlin 2006, Ch. 13, p. 617
• [9] A. Kohn, J. Dean, A. Kovacs, A. Zeltser, M.J. Carey, D. Geiger, G. Hrkac, T. Schrefl, D. Allwood, J. Appl. Phys. 109, 083924 (2011), doi: 10.1063/1.3559261
• [10] A. Harres, J. Geshev, J. Phys. Condens. Matter 24, 326004 (2012), doi: 10.1088/0953-8984/24/32/326004
• [11] J. Dubowik, I. Gościańska, K. Załęski, H. Głowiński, Y. Kudryavtsev, A. Ehresmann, J. Appl. Phys. 113, 193907 (2013), doi: 10.1063/1.4807167
• [12] R. Skomski, J. Phys. Condens. Matter 15, R841 (2003), doi: 10.1088/0953-8984/15/20/202
• [13] Z. Frait, D. Fraitova, in: Modern Problems in Condensed Matter Sciences, Spin Waves and Magnetic Excitations, Vol. 22.2, Eds. A.S. Borovik-Romanov, S.K. Sinha, North-Holland, Amsterdam 1988, Ch. 1, p. 1
• [14] S. Trudel, O. Gaier, J. Hamrle, B. Hillebrands, J. Phys. D Appl. Phys. 43, 193001 (2010), doi: 10.1088/0022-3727/43/19/193001
• [15] J. Dubowik, I. Gościańska, K. Załęski, H. Głowiński, A. Ehresmann, G. Kakazei, S.A. Bunayev, Acta Phys. Pol. A 121, 1121 (2012) http://przyrbwn.icm.edu.pl/APP/PDF/121/a121z5p39.pdf
• [16] R. O'Handley, Modern Magnetic Materials: Principles and Applications, Wiley, New York 1999, Ch. 3
• [17] X. Liu, R. Sooryakumar, C.J. Gutierrez, G.A. Prinz, J. Appl. Phys. 75, 7021 (1994), doi: 10.1063/1.356763
• [18] R. Yilgin, S. Kazan, B. Rameev, B. Aktas, K. Westerholt, J. Phys. Conf. Series 153, 012068 (2009), doi: 10.1088/17426596/1/012068
• [19] P.J. van der Zaag, A.R. Ball, L.F. Feiner, R.M. Wolf, P.A.A. van der Heijden, J. Appl. Phys. 79, 5103 (1996), doi: 10.1063/1.361315
• [20] R. Coehoorn, Lecture Notes on Novel Magnetoelectronic Materials and Devices: Exchange Biased Spinvalves, 2004, part 4 http://static.tue.nl/fileadmin/content/faculteiten/tn/FNA/Students_Education/Lectures_Courses/Coehoorn%20Lecture-Notes-SVs-Part4-final.pdf
• [21] M. Tsunoda, K. Imakita, M. Naka, M. Takahashi, J. Magn. Magn. Mater. 304, 55 (2006), doi: 10.1016/j.jmmm.2006.02.007
• [22] A. Aharoni, E.H. Frei, S. Shtrikman, J. Appl. Phys. 30, 1956 (1959), doi: 10.1063/1.1735096
• [23] N. Salansky, M. Eruchimov, Thin Solid Films 6, 129 (1970), doi: 10.1016/0040-6090(70)90070-2
• [24] P.J. van der Zaag, J.A. Brochers, in: Magnetic Properties of Antiferromagnetic Oxide Materials, Eds. L. Dúo, M. Finazzi, F. Ciccacci, Wiley-VCH, New York 2010, Ch. 7
• [25] A.R. Ball, A.J.G. Leenaers, P.J. van der Zaag, K.A. Shaw, B. Singer, D.M. Lind, H. Fredrikze, M. Rekveldt, Appl. Phys. Lett. 69, 1489 (1996), doi: 10.1063/1.116917
• [26] F. Radu, H. Zabel, in: Magnetic Heterostructures, series Springer Tracts in Modern Physics, Vol. 227, Eds. H.Zabel, S.D. Bader, Springer, Berlin 2008, p. 97, doi: 10.1007/978-3-540-73462-8_3
• [27] H. Endo, A. Hirohata, T. Nakayama, K.O. Grady, J. Phys. D Appl. Phys. 44, 145003 (2011), doi: 10.1088/0022-3727/44/14/145003
• [28] P. Wisniowski, T. Stobiecki, J. Kanak, G. Reiss, H. Brueckl, J. Appl. Phys. 100, 013906 (2006), doi: 10.1063/1.2209180
• [29] K. O'Grady, L. Fernandez-Outon, G. Vallejo-Fernandez, J. Magn. Magn. Mater. 322, 883 (2010), doi: 10.1016/j.jmmm.2009.12.011

Identifiers

DOI

10.12693/APhysPolA.127.147