Suppression of the low-temperature phase-separated state under pressure in (Eu 1-xGd x) 0.6Sr 0.4MnO 3 (x = 0, 0.1)

Tasuku Inomata, Michiaki Matsukawa, Daichi Kimura, Yoshiaki Yamato, Satoru Kobayashi, Ramanathan Suryanarayanan, Sigeki Nimori, Keiichi Koyama, Kohki Takahashi, Kazuo Watanabe, Norio Kobayashi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We have demonstrated the effect of pressure on the steplike metamagnetic transition and its associated magnetostriction in (Eu 1-xGd x) 0.6Sr 0.4MnO 3 (x=0 and 0.1). The critical field initiating the field induced ferromagnetic transition in both samples is lowered by the applied pressure. The further application of external pressure up to 1.2 GPa on the x=0 parent sample causes a spontaneous ferromagnetic transition with a second-order like character, leading to collapses of the steplike transition and its concomitant lattice striction. These findings indicate a crucial role of the low-temperature phase separated state characterized by a suppressed magnetization upon decreasing temperature.

Original languageEnglish
Pages (from-to)3863-3869
Number of pages7
JournalJournal of Magnetism and Magnetic Materials
Volume324
Issue number22
DOIs
Publication statusPublished - 2012 Nov 1

Keywords

  • Doped manganite
  • Phase separation
  • Pressure effect
  • Steplike transition

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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