Effect of the change in the interface structure of Pd(100)/SrTiO3 for quantum-well induced ferromagnetism

Shunsuke Sakuragi, Tomoyuki Ogawa, Tetsuya Sato

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Measurements of temperature dependent magnetization of Pd(100) ultrathin films on SrTiO3(100) substrates which shows quantum-well induced ferromagnetism were performed. We observed the jump in magnetization of Pd(100) due to the structural phase transition of SrTiO3, and then, the disappearance of ferromagnetism after temperature-cycle repetition. X-ray reflectivity measurement revealed that the density of a few layers in the Pd film decreased near the Pd/SrTiO3 interface after temperature cycles. This suggests that the structural change affects the quantum-well induced ferromagnetism, and lowering of the crystallinity of Pd at the interface has a negative effect on quantum-well induced ferromagnetism of Pd(100) ultrathin films.

Original languageEnglish
Pages (from-to)453-457
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume423
DOIs
Publication statusPublished - 2017 Feb 1

Keywords

  • Ferromagnetism
  • Interface structure
  • Pd ultrathin films
  • Quantum-well states

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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