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

Yusuke Ban, Katsuyoshi Komatsu, Shunsuke Sakuragi, Tomoyasu Taniyama, Hiroyuki Kageshima, Tetsuya Sato

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2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number142409
JournalApplied Physics Letters
Volume112
Issue number14
DOIs
Publication statusPublished - 2018 Apr 2

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magnetization
saturation
ferromagnetism
electric potential

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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Change in magnetization of ferromagnetic Pd(001) ultrathin films induced by the strain effect of BaTiO3 . / Ban, Yusuke; Komatsu, Katsuyoshi; Sakuragi, Shunsuke; Taniyama, Tomoyasu; Kageshima, Hiroyuki; Sato, Tetsuya.

In: Applied Physics Letters, Vol. 112, No. 14, 142409, 02.04.2018.

Research output: Contribution to journalArticle

Ban, Yusuke ; Komatsu, Katsuyoshi ; Sakuragi, Shunsuke ; Taniyama, Tomoyasu ; Kageshima, Hiroyuki ; Sato, Tetsuya. / Change in magnetization of ferromagnetic Pd(001) ultrathin films induced by the strain effect of BaTiO3 In: Applied Physics Letters. 2018 ; Vol. 112, No. 14.
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