Thermally driven commensurate-incommensurate transition tracked by magnetochromism in chiral polar Ni2In0.9Cr0.1SbO6

Tatsuki Sato, Nobuyuki Abe, Yusuke Araki, Shojiro Kimura, Yusuke Tokunaga, Taka Hisa Arima

Research output: Contribution to journalArticlepeer-review

Abstract

Ni2In0.9Cr0.1SbO6 is a trigonal chiral polar helimagnet with multiferroic nature. Here, we perform optical absorption measurements on Ni2In0.9Cr0.1SbO6 in magnetic fields. The observed magnetochromism is attributed to the spin-dependent transition probability of the intra-atomic d-d excitation from the 3A2g ground state to the 1Eg excited state of Ni2+ ions with the 3d8 electronic configuration. Exploiting the magnetodielectric coupling in optical frequencies, we propose that the boundary between ferrimagnetic and incommensurate magnetic phases of Ni2In0.9Cr0.1SbO6 in 6 T along the c axis should lie at around 50 K.

Original languageEnglish
Article number094418
JournalPhysical Review B
Volume102
Issue number9
DOIs
Publication statusPublished - 2020 Sep 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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