Magnetic structure of the conductive triangular-lattice antiferromagnet PdCrO 2

Hiroshi Takatsu, Gwilherm Nénert, Hiroaki Kadowaki, Hideki Yoshizawa, Mechthild Enderle, Shingo Yonezawa, Yoshiteru Maeno, Jungeun Kim, Naruki Tsuji, Masaki Takata, Yang Zhao, Mark Green, Collin Broholm

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We performed neutron single-crystal and synchrotron x-ray powder diffraction experiments in order to investigate the magnetic and crystal structures of the conductive layered triangular-lattice antiferromagnet PdCrO2 with a putative spin chirality, which contributes to an unconventional anomalous Hall effect. We revealed that the ground-state magnetic structure is a commensurate and nearly coplanar 120â̂̃ spin structure. The 120â̂̃ planes in different Cr layers seem to tilt with one another, leading to a small noncoplanarity. Such a small but finite noncoplanar stacking of the 120â̂̃ planes gives rise to a finite scalar spin chirality, which may be responsible for the unconventional nature of the Hall effect of PdCrO2.

Original languageEnglish
Article number104408
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume89
Issue number10
DOIs
Publication statusPublished - 2014 Mar 11

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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