Spontaneous magnetostriction effects in the chiral magnet CrNb3 S6

Takayuki Tajiri, Masaki Mito, Yusuke Kousaka, Jun Akimitsu, Jun Ichiro Kishine, Katsuya Inoue

Research output: Contribution to journalArticlepeer-review

Abstract

We identified the spontaneous magnetostriction effects in the chiral magnet CrNb3S6 with the Dzyaloshinskii-Moriya interaction. The powdered x-ray diffraction patterns indicate a prominent magnetostriction effect at the earth field. The unit-cell volume remains almost constant, as in the so-called Invar effect, below 170 K in the paramagnetic region, where the atomic positions of Nb and S show characteristic changes. Below the magnetic ordering temperature of 127 K, the lattice constants a and c exhibit an opposite temperature dependence. When a finite magnetic field of 1.2 kOe is applied, a magnetostriction appears that counterbalances the spontaneous magnetostriction. The magnetostriction phenomena in CrNb3S6 were investigated from the viewpoint of the atomic level of the chiral effect.

Original languageEnglish
Article number014446
JournalPhysical Review B
Volume102
Issue number1
DOIs
Publication statusPublished - Jul 1 2020

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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