Giant electric field controlled magnetic anisotropy in epitaxial BiFeO 3-CoFe2O4 thin film heterostructures on single crystal Pb(Mg1/3Nb2/3)0.7Ti0.3O 3 substrate

Zhiguang Wang; Yaodong Yang; Ravindranath Viswan; Jiefang Li; D. Viehland

doi:10.1063/1.3619836

Giant electric field controlled magnetic anisotropy in epitaxial BiFeO ₃-CoFe₂O₄ thin film heterostructures on single crystal Pb(Mg_1/3Nb_2/3)_0.7Ti_0.3O ₃ substrate

Zhiguang Wang
, Yaodong Yang
, Ravindranath Viswan
, Jiefang Li
, D. Viehland

Virginia Polytechnic Institute and State University

Research output: Contribution to journal › Article › peer-review

72 Scopus citations

Abstract

We have deposited self-assembled BiFeO₃ (BFO)-CoFe ₂O₄ (CFO) thin films on Pb(Mg_1/3Nb _2/3)_0.7Ti_0.3O₃ (PMN-PT) substrates and studied the change in magnetic anisotropy under different strain conditions induced by an applied electric field. After electric field poling, we observed (i) giant magnetization change: magnetization of original CFO phase is three times larger than that of strained one and (ii) magnetic force microscopy line profiles that exhibited significant change in the CFO magnetic domain response in accordance to magnetization-field (M-H) loops. Together, these results demonstrate good control of the magnetic properties of CFO via an electric field induced strain.

Original language	English
Article number	043110
Journal	Applied Physics Letters
Volume	99
Issue number	4
DOIs	https://doi.org/10.1063/1.3619836
State	Published - 25 Jul 2011
Externally published	Yes

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title = "Giant electric field controlled magnetic anisotropy in epitaxial BiFeO 3-CoFe2O4 thin film heterostructures on single crystal Pb(Mg1/3Nb2/3)0.7Ti0.3O 3 substrate",

abstract = "We have deposited self-assembled BiFeO3 (BFO)-CoFe 2O4 (CFO) thin films on Pb(Mg1/3Nb 2/3)0.7Ti0.3O3 (PMN-PT) substrates and studied the change in magnetic anisotropy under different strain conditions induced by an applied electric field. After electric field poling, we observed (i) giant magnetization change: magnetization of original CFO phase is three times larger than that of strained one and (ii) magnetic force microscopy line profiles that exhibited significant change in the CFO magnetic domain response in accordance to magnetization-field (M-H) loops. Together, these results demonstrate good control of the magnetic properties of CFO via an electric field induced strain.",

author = "Zhiguang Wang and Yaodong Yang and Ravindranath Viswan and Jiefang Li and D. Viehland",

year = "2011",

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doi = "10.1063/1.3619836",

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T1 - Giant electric field controlled magnetic anisotropy in epitaxial BiFeO 3-CoFe2O4 thin film heterostructures on single crystal Pb(Mg1/3Nb2/3)0.7Ti0.3O 3 substrate

AU - Wang, Zhiguang

AU - Yang, Yaodong

AU - Viswan, Ravindranath

AU - Li, Jiefang

AU - Viehland, D.

PY - 2011/7/25

Y1 - 2011/7/25

N2 - We have deposited self-assembled BiFeO3 (BFO)-CoFe 2O4 (CFO) thin films on Pb(Mg1/3Nb 2/3)0.7Ti0.3O3 (PMN-PT) substrates and studied the change in magnetic anisotropy under different strain conditions induced by an applied electric field. After electric field poling, we observed (i) giant magnetization change: magnetization of original CFO phase is three times larger than that of strained one and (ii) magnetic force microscopy line profiles that exhibited significant change in the CFO magnetic domain response in accordance to magnetization-field (M-H) loops. Together, these results demonstrate good control of the magnetic properties of CFO via an electric field induced strain.

AB - We have deposited self-assembled BiFeO3 (BFO)-CoFe 2O4 (CFO) thin films on Pb(Mg1/3Nb 2/3)0.7Ti0.3O3 (PMN-PT) substrates and studied the change in magnetic anisotropy under different strain conditions induced by an applied electric field. After electric field poling, we observed (i) giant magnetization change: magnetization of original CFO phase is three times larger than that of strained one and (ii) magnetic force microscopy line profiles that exhibited significant change in the CFO magnetic domain response in accordance to magnetization-field (M-H) loops. Together, these results demonstrate good control of the magnetic properties of CFO via an electric field induced strain.

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U2 - 10.1063/1.3619836

DO - 10.1063/1.3619836

M3 - 文章

AN - SCOPUS:79961040934

SN - 0003-6951

VL - 99

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 4

M1 - 043110

ER -

Giant electric field controlled magnetic anisotropy in epitaxial BiFeO ₃-CoFe₂O₄ thin film heterostructures on single crystal Pb(Mg_1/3Nb_2/3)_0.7Ti_0.3O ₃ substrate

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