Tailorable exchange bias and memory of frozen antiferromagnetic spins in epitaxial CoO(111)/Fe(110) bilayers

被引：4
作者：
Slezak, M. [1 ]
Drozdz, P. [1 ]
Janus, W. [1 ]
Szpytma, M. [1 ]
Nayyef, H. [1 ]
Koziol-Rachwal, A. [1 ]
Zajac, M. [2 ]
Slezak, T. [1 ]
机构：
[1] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Al Mickiewicza 30, PL-30059 Krakow, Poland
[2] Jagiellonian Univ, Natl Synchrotron Radiat Ctr SOLARIS, Krakow, Poland
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2022年 / 545卷
关键词：
Magnetic anisotropy; Spin reorientation transition; Exchange bias; Antiferromagnets; XMLD; MOKE; Epitaxial thin films; MAGNETIC-ANISOTROPY;
D O I：
10.1016/j.jmmm.2021.168783
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report on exchange bias and interfacial antiferromagnetic spin orientation in epitaxial CoO(111)/Fe(110) bilayers. Our X-ray magnetic linear dichmism and magneto-optic Kerr effect results show that exchange bias sets on in the zero-field-cooled system and is governed by in-plane magnetic state Fe(110) sublayer above Neel temperature of CoO. Uniaxial magnetic anisotropy of Fe layer determines the direction of interfacial frozen antiferromagnetic CoO spins within CoO(111)//Fe(110) sample plane. Choice of the particular magnetic state of Fe sublayer, when passing Neel temperature of CoO, determines both the axis and direction of interfacial antiferromagnetic spins after the sample is cooled and allows for imprinting their +/- 90 degrees and 0/180 degrees alignment within the sample plane.
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页数：6
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