Change in magnetization of ferromagnetic Pd(001) ultrathin films induced by the strain effect of BaTiO3

Change in magnetization of ferromagnetic Pd(001) ultrathin films induced by the strain effect of BaTiO3

We demonstrate changes in the saturation magnetization of Pd(001) ultrathin films exhibiting ferromagnetism in Pd/SrTiO3/BaTiO3 heterostructures due to the strain effect caused by the structural phase transition of BaTiO3 substrates. When a BaTiO3 substrate with a single domain formed by voltage app...

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Veröffentlicht in:Applied physics letters 2018-04, Vol.112 (14)
Hauptverfasser: Ban, Yusuke, Komatsu, Katsuyoshi, Sakuragi, Shunsuke, Taniyama, Tomoyasu, Kageshima, Hiroyuki, Sato, Tetsuya
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container_issue 14
container_start_page
container_title Applied physics letters
container_volume 112
creator Ban, Yusuke
Komatsu, Katsuyoshi
Sakuragi, Shunsuke
Taniyama, Tomoyasu
Kageshima, Hiroyuki
Sato, Tetsuya
description We demonstrate changes in the saturation magnetization of Pd(001) ultrathin films exhibiting ferromagnetism in Pd/SrTiO3/BaTiO3 heterostructures due to the strain effect caused by the structural phase transition of BaTiO3 substrates. When a BaTiO3 substrate with a single domain formed by voltage application transitioned from the orthorhombic phase to the tetragonal phase, the saturation magnetization of Pd decreased by about 5%. The first-principles calculations, which assumed the distortion accompanied by the orthorhombic to the tetragonal structural phase transition, indicated a decrease by 3%–4% in the magnetization, which was consistent with the experimental results.
doi_str_mv 10.1063/1.5020956
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title Change in magnetization of ferromagnetic Pd(001) ultrathin films induced by the strain effect of BaTiO3
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