Giant vertical magnetization shift induced by spin canting in a Co/Ca 2Ru0.98Fe0.02FeO4 heterostructure

S. J. Yuan; L. Li; T. F. Qi; L. E. Delong; G. Cao

doi:10.1103/PhysRevB.88.024413

Giant vertical magnetization shift induced by spin canting in a Co/Ca ₂Ru_0.98Fe_0.02FeO₄ heterostructure

S. J. Yuan, L. Li, T. F. Qi, L. E. Delong, G. Cao

Physics And Astronomy

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Abstract

We present a study of exchange bias generated at the interface between a polycrystalline Co film sputtered on a cleavage plane of single-crystal Ca ₂Ru_0.98Fe_0.02FeO₄. The exchange bias is accompanied by an extremely large vertical magnetization shift that is characterized by 60% of the saturation magnetization in a 70-kOe cooling field. This phenomenon is seldom observed in other heterostructures. The effects of cooling-field amplitude and temperature on the exchange bias indicate that the magnetization shift results from a ferromagnetic contribution of canted moments in Ca₂Ru_0.98Fe_0.02O₄. A Type-I training effect is also observed, in which the hysteresis loop shrinks from both sides with cycling of the applied field.

Original language	English
Article number	024413
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	88
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevB.88.024413
State	Published - Jul 15 2013

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Giant vertical magnetization shift induced by spin canting in a Co/Ca 2Ru0.98Fe0.02FeO4 heterostructure",

abstract = "We present a study of exchange bias generated at the interface between a polycrystalline Co film sputtered on a cleavage plane of single-crystal Ca 2Ru0.98Fe0.02FeO4. The exchange bias is accompanied by an extremely large vertical magnetization shift that is characterized by 60% of the saturation magnetization in a 70-kOe cooling field. This phenomenon is seldom observed in other heterostructures. The effects of cooling-field amplitude and temperature on the exchange bias indicate that the magnetization shift results from a ferromagnetic contribution of canted moments in Ca2Ru0.98Fe0.02O4. A Type-I training effect is also observed, in which the hysteresis loop shrinks from both sides with cycling of the applied field.",

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AU - Yuan, S. J.

AU - Li, L.

AU - Qi, T. F.

AU - Delong, L. E.

AU - Cao, G.

PY - 2013/7/15

Y1 - 2013/7/15

N2 - We present a study of exchange bias generated at the interface between a polycrystalline Co film sputtered on a cleavage plane of single-crystal Ca 2Ru0.98Fe0.02FeO4. The exchange bias is accompanied by an extremely large vertical magnetization shift that is characterized by 60% of the saturation magnetization in a 70-kOe cooling field. This phenomenon is seldom observed in other heterostructures. The effects of cooling-field amplitude and temperature on the exchange bias indicate that the magnetization shift results from a ferromagnetic contribution of canted moments in Ca2Ru0.98Fe0.02O4. A Type-I training effect is also observed, in which the hysteresis loop shrinks from both sides with cycling of the applied field.

AB - We present a study of exchange bias generated at the interface between a polycrystalline Co film sputtered on a cleavage plane of single-crystal Ca 2Ru0.98Fe0.02FeO4. The exchange bias is accompanied by an extremely large vertical magnetization shift that is characterized by 60% of the saturation magnetization in a 70-kOe cooling field. This phenomenon is seldom observed in other heterostructures. The effects of cooling-field amplitude and temperature on the exchange bias indicate that the magnetization shift results from a ferromagnetic contribution of canted moments in Ca2Ru0.98Fe0.02O4. A Type-I training effect is also observed, in which the hysteresis loop shrinks from both sides with cycling of the applied field.

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Giant vertical magnetization shift induced by spin canting in a Co/Ca ₂Ru_0.98Fe_0.02FeO₄ heterostructure

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