標題: High interfacial exchange energy in TbFeCo exchange-bias films
作者: Lin, CC
Lai, CH
Jiang, RF
Shieh, HPD
光電工程學系
Department of Photonics
公開日期: 15-May-2003
摘要: The exchange-bias films of ferrimagnetic/ferrimagnetic, ferromagnetic/ferromagnetic, and ferromagnetic/antiferromagnetic bilayers were fabricated to investigate their interfacial exchange energy Deltasigma. Deltasigma of TbFeCo bilayers is larger than 5 erg/cm(2) at room temperature. By varying the composition of TbFeCo layers, both positive and negative exchange bias have been observed. A highly uncompensated-spin interface model was proposed to explain the strong exchange interaction in TbFeCo bilayers. Due to the characteristics of highly uncompensated-spin interface at TbFeCo bilayers, the exchange coupling field in TbFeCo bilayers exhibited less dependence on interfacial roughness than that in IrMn/NiFe bilayers. In addition, by adjusting the composition of TbFeCo, the anisotropy of pinning layer can be manipulated and exhibits strong effects on exchange bias of TbFeCo bilayers. (C) 2003 American Institute of Physics.
URI: http://dx.doi.org/10.1063/1.1556932
http://hdl.handle.net/11536/27859
ISSN: 0021-8979
DOI: 10.1063/1.1556932
期刊: JOURNAL OF APPLIED PHYSICS
Volume: 93
Issue: 10
起始頁: 6832
結束頁: 6834
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