Structural disorder versus chiral magnetism in Cr1/3NbS2

V. Dyadkin, F. Mushenok, A. Bosak, D. Menzel, S. Grigoriev, P. Pattison, D. Chernyshov

Research output

17 Citations (Scopus)

Abstract

The crystal structure of a disordered form of Cr1/3NbS2 has been characterized using diffraction and inelastic scattering of synchrotron radiation. In contrast to the previously reported symmetry (P6(3)22), the crystal can be described by a regular twinning of an average P6(3) structure with three disordered positions of the Cr ions. Short-range correlations of the occupational disorder result in a quite intense and structured diffuse scattering; a static nature of the disorder was unambiguously attributed by the inelastic x-ray scattering. The diffuse scattering has been modeled using a reverse Monte-Carlo algorithm assuming a disorder of the Cr sublattice only. The observed correlated disorder of the Cr sublattice reduces the temperature of the magnetic ordering from 130 to 88 K and drastically modifies the field dependence of the magnetization as it is evidenced by the SQUID magnetometery. We conclude that, in contrast to the magnetic properties assumed for a helicoidal spin structure, the compound under s
Original languageEnglish
Pages (from-to)184205
Number of pages7
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume91
Issue number18
DOIs
Publication statusPublished - 2015

Scopus subject areas

  • Physics and Astronomy(all)

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