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Mediating exchange bias by Verwey transition in CoO/Fe3O4 thin film
Liu, XH; Liu, W; Zhang, ZD; Chang, CF; Liu, XH (reprint author), Max Planck Inst Chem Phys Solids, Nothnitzerstr 40, D-01187 Dresden, Germany.; Liu, XH (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China.
2018-02-28
发表期刊JOURNAL OF APPLIED PHYSICS
ISSN0021-8979
卷号123期号:8页码:-
摘要We report the tunability of the exchange bias effect by the first-order metal-insulator transition (known as the Verwey transition) of Fe3O4 in CoO (5 nm)/Fe3O4 (40 nm)/MgO (001) thin film. In the vicinity of the Verwey transition, the exchange bias field is substantially enhanced because of a sharp increase in magnetocrystalline anisotropy constant from high-temperature cubic to low-temperature monoclinic structure. Moreover, with respect to the Fe3O4 (40 nm)/MgO (001) thin film, the coercivity field of the CoO (5 nm)/Fe3O4 (40 nm)/MgO (001) bilayer is greatly increased for all the temperature range, which would be due to the coupling between Co spins and Fe spins across the interface. Published by AIP Publishing.; We report the tunability of the exchange bias effect by the first-order metal-insulator transition (known as the Verwey transition) of Fe3O4 in CoO (5 nm)/Fe3O4 (40 nm)/MgO (001) thin film. In the vicinity of the Verwey transition, the exchange bias field is substantially enhanced because of a sharp increase in magnetocrystalline anisotropy constant from high-temperature cubic to low-temperature monoclinic structure. Moreover, with respect to the Fe3O4 (40 nm)/MgO (001) thin film, the coercivity field of the CoO (5 nm)/Fe3O4 (40 nm)/MgO (001) bilayer is greatly increased for all the temperature range, which would be due to the coupling between Co spins and Fe spins across the interface. Published by AIP Publishing.
部门归属[liu, x. h. ; chang, c. f.] max planck inst chem phys solids, nothnitzerstr 40, d-01187 dresden, germany ; [liu, x. h. ; liu, w. ; zhang, z. d.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china
关键词Polarized Neutron Reflectometry Magnetic-properties Fe3o4/coo Superlattices Bilayers Anisotropy Multilayers Deposition Thickness Transport Growth
学科领域Physics, Applied
资助者Max Planck-POSTECH Center for Complex Phase Materials; National Basic Research Program of China [2017YFA0206302]; National Natural Science Foundation of China [51590883, 51331006]; Chinese Academy of Sciences [KJZD-EW-M05-3]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/79485
专题中国科学院金属研究所
通讯作者Liu, XH (reprint author), Max Planck Inst Chem Phys Solids, Nothnitzerstr 40, D-01187 Dresden, Germany.; Liu, XH (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式
GB/T 7714
Liu, XH,Liu, W,Zhang, ZD,et al. Mediating exchange bias by Verwey transition in CoO/Fe3O4 thin film[J]. JOURNAL OF APPLIED PHYSICS,2018,123(8):-.
APA Liu, XH,Liu, W,Zhang, ZD,Chang, CF,Liu, XH ,&Liu, XH .(2018).Mediating exchange bias by Verwey transition in CoO/Fe3O4 thin film.JOURNAL OF APPLIED PHYSICS,123(8),-.
MLA Liu, XH,et al."Mediating exchange bias by Verwey transition in CoO/Fe3O4 thin film".JOURNAL OF APPLIED PHYSICS 123.8(2018):-.
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