Interfacial magnetic coupling in hetero-structure of Fe/double-perovskite NdBaMn2O6 single crystal

W. C. Lin; C. L. Tsai; K. Ogawa; S. Yamada; Ashish C. Gandhi; J. G. Lin

doi:10.1063/1.5023119

Interfacial magnetic coupling in hetero-structure of Fe/double-perovskite NdBaMn₂O₆ single crystal

W. C. Lin, C. L. Tsai, K. Ogawa, S. Yamada, Ashish C. Gandhi, J. G. Lin

物理學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

3 引文斯高帕斯（Scopus）

摘要

The interfacial magnetic coupling between metallic Fe and the double-perovskite NdBaMn₂O₆ single crystal was investigated in the heterostructure of 4-nm Pd/10-nm Fe/NdBaMn₂O₆. A considerable magnetic coupling effect was observed in the temperature range coincident with the magnetic phase transition of NdBaMn₂O₆. When the temperature was elevated above 270 K, NdBaMn₂O₆ transformed from a state of antiferromagnetic fluctuating domains to a superparamagnetism-like (ferromagnetic fluctuation) state with high magnetic susceptibility. Concurrently, the interfacial magnetic coupling between the Fe layer and the NdBaMn₂O₆ crystal was observed, as indicated by the considerable squareness reduction and coercivity enhancement in the Fe layer. Moreover, the presence of the Fe layer changed the magnetic structure of NdBaMn₂O₆ from conventional 4-fold symmetry to 2-fold symmetry. These observations offer applicable insights into the mutual magnetic interaction in the heterostructures of metallic ferromagnetism/perovskite materials.

原文	英語
文章編號	162403
期刊	Applied Physics Letters
卷	112
發行號	16
DOIs	https://doi.org/10.1063/1.5023119
出版狀態	已發佈 - 2018 4月 16

ASJC Scopus subject areas

物理與天文學（雜項）

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10.1063/1.5023119

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title = "Interfacial magnetic coupling in hetero-structure of Fe/double-perovskite NdBaMn2O6 single crystal",

abstract = "The interfacial magnetic coupling between metallic Fe and the double-perovskite NdBaMn2O6 single crystal was investigated in the heterostructure of 4-nm Pd/10-nm Fe/NdBaMn2O6. A considerable magnetic coupling effect was observed in the temperature range coincident with the magnetic phase transition of NdBaMn2O6. When the temperature was elevated above 270 K, NdBaMn2O6 transformed from a state of antiferromagnetic fluctuating domains to a superparamagnetism-like (ferromagnetic fluctuation) state with high magnetic susceptibility. Concurrently, the interfacial magnetic coupling between the Fe layer and the NdBaMn2O6 crystal was observed, as indicated by the considerable squareness reduction and coercivity enhancement in the Fe layer. Moreover, the presence of the Fe layer changed the magnetic structure of NdBaMn2O6 from conventional 4-fold symmetry to 2-fold symmetry. These observations offer applicable insights into the mutual magnetic interaction in the heterostructures of metallic ferromagnetism/perovskite materials.",

author = "Lin, {W. C.} and Tsai, {C. L.} and K. Ogawa and S. Yamada and Gandhi, {Ashish C.} and Lin, {J. G.}",

note = "Funding Information: This study was financially sponsored by the Ministry of Science and Technology of Taiwan under Grant Nos. MOST 105-2112-M-002-010-MY3, MOST 105-2628-M-003-001-MY3, and MOST 105-2633-M-003-001. This study was partly supported by a Grant-in-Aid for Scientific Research (No. 24540380) from the Japan Society for the Promotion of Science and by the grant for Strategic Research Promotion (No. G2503) of Yokohama City University. Publisher Copyright: {\textcopyright} 2018 Author(s).",

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AU - Lin, W. C.

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AU - Yamada, S.

AU - Gandhi, Ashish C.

AU - Lin, J. G.

N1 - Funding Information: This study was financially sponsored by the Ministry of Science and Technology of Taiwan under Grant Nos. MOST 105-2112-M-002-010-MY3, MOST 105-2628-M-003-001-MY3, and MOST 105-2633-M-003-001. This study was partly supported by a Grant-in-Aid for Scientific Research (No. 24540380) from the Japan Society for the Promotion of Science and by the grant for Strategic Research Promotion (No. G2503) of Yokohama City University. Publisher Copyright: © 2018 Author(s).

PY - 2018/4/16

Y1 - 2018/4/16

N2 - The interfacial magnetic coupling between metallic Fe and the double-perovskite NdBaMn2O6 single crystal was investigated in the heterostructure of 4-nm Pd/10-nm Fe/NdBaMn2O6. A considerable magnetic coupling effect was observed in the temperature range coincident with the magnetic phase transition of NdBaMn2O6. When the temperature was elevated above 270 K, NdBaMn2O6 transformed from a state of antiferromagnetic fluctuating domains to a superparamagnetism-like (ferromagnetic fluctuation) state with high magnetic susceptibility. Concurrently, the interfacial magnetic coupling between the Fe layer and the NdBaMn2O6 crystal was observed, as indicated by the considerable squareness reduction and coercivity enhancement in the Fe layer. Moreover, the presence of the Fe layer changed the magnetic structure of NdBaMn2O6 from conventional 4-fold symmetry to 2-fold symmetry. These observations offer applicable insights into the mutual magnetic interaction in the heterostructures of metallic ferromagnetism/perovskite materials.

AB - The interfacial magnetic coupling between metallic Fe and the double-perovskite NdBaMn2O6 single crystal was investigated in the heterostructure of 4-nm Pd/10-nm Fe/NdBaMn2O6. A considerable magnetic coupling effect was observed in the temperature range coincident with the magnetic phase transition of NdBaMn2O6. When the temperature was elevated above 270 K, NdBaMn2O6 transformed from a state of antiferromagnetic fluctuating domains to a superparamagnetism-like (ferromagnetic fluctuation) state with high magnetic susceptibility. Concurrently, the interfacial magnetic coupling between the Fe layer and the NdBaMn2O6 crystal was observed, as indicated by the considerable squareness reduction and coercivity enhancement in the Fe layer. Moreover, the presence of the Fe layer changed the magnetic structure of NdBaMn2O6 from conventional 4-fold symmetry to 2-fold symmetry. These observations offer applicable insights into the mutual magnetic interaction in the heterostructures of metallic ferromagnetism/perovskite materials.

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Interfacial magnetic coupling in hetero-structure of Fe/double-perovskite NdBaMn2O6 single crystal

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Interfacial magnetic coupling in hetero-structure of Fe/double-perovskite NdBaMn₂O₆ single crystal