| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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The Hysteretic Behavior of Angular Dependence of Exchange Bias in NiFe/granular-FeMn-MgO Bilayers |
| HU Hai-Ning1**, QIU Xue-Peng2, SHI Zhong3 |
1School of Mathematics and Physics, Shanghai University of Electric Power, Shanghai 200090
2Surface Physics State Laboratory and Department of Physics, Fudan University, Shanghai 200433
3School of Physics Science and Engineering, Tongji University, Shanghai 200092
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| Cite this article: |
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HU Hai-Ning, QIU Xue-Peng, SHI Zhong 2013 Chin. Phys. Lett. 30 027501 |
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Abstract We investigate the hysteretic behavior of the angular dependence of exchange bias for a series of polycrystalline NiFe/(FeMn)1?x(MgO)x bilayers with varying x. For x=0.025, the antiferromagnetic layer is of the largest degree of the fcc (111) preferred texture. At the same x, both the exchange field and blocking temperature acquire maximal values. In particular, the hysteretic behavior of the angular dependence between clockwise and counter-clockwise rotations shows minimal angular shift. These results can be explained in terms of the thermal activation model.
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Received: 26 September 2012
Published: 02 March 2013
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| PACS: |
75.30.Et
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(Exchange and superexchange interactions)
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75.30.Gw
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(Magnetic anisotropy)
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75.60.Jk
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(Magnetization reversal mechanisms)
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[1] Meiklejohn W H and Bean C P 1956 Phys. Rev. B 102 1413
[2] Nogues J and Schuler I K 1999 J. Magn. Magn. Mater. 192 203
[3] Berkowitz A E and Takano K 1999 J. Magn. Magn. Mater. 200 552
[4] Miltényi P, Gierlings M, Keller J, Beschoten B, Güntherodt G, Nowak U and Usadel K D 2000 Phys. Rev. Lett. 84 4224
[5] Morel R, Portemont C, Brenac A and Notin L 2006 Phys. Rev. Lett. 97 127203
[6] Fecioru-Morariu M, Rizwan Ali S, Papusoi C, Sperlich M and Güntherodt G 2007 Phys. Rev. Lett. 99 97206
[7] Nowak U, Usadel K D, Keller J, Miltényi P, Beschoten B and Güntherodt G 2002 Phys. Rev. B 66 014430
[8] Ambrose T, Sommer R L and Chien C L 1997 Phys. Rev. B 56 83
[9] Gao T R, Yang D Z, Zhou S M, Chantell R, Asselin P, Bai X J, Du J and Wu X S 2007 Phys. Rev. Lett. 99 057201
[10] Shi Z, Gao T R, Zhou S M, Chantrell R, Asselin P, Bai X J, Du J and Wu X S 2008 J. Appl. Phys. 103 07E926
[11] Hu H N, Qiu X P, Shi Z, Zhou S M Bai X J, Du J and Sun L 2008 Appl. Phys. Lett. 93 122503
[12] Hong J, Leo T, Smith D J and Berkowitz A E 2006 Phys. Rev. Lett. 96 117204
[13] Choe G and Gupta S 1997 Appl. Phys. Lett. 70 1766 |
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