A case for Bragg diffraction by a noncollinear (PT)-symmetric antiferromagnet Cu$_2$(MoO$_4$)(SeO$_3$)

S. W. Lovesey; G. van der Laan

A case for Bragg diffraction by a noncollinear (PT)-symmetric antiferromagnet Cu$_2$(MoO$_4$)(SeO$_3$)

Strongly Correlated Electrons 2024-07-29 v1

Authors: S. W. Lovesey , G. van der Laan

Abstract

Antiferromagnetic compounds chromium sesquioxide (Cr $_2$ O $_3$ ) and dioxomolybdenum selenite present linear magnetoelectric effects. Anti-inversion symmetry in the corresponding magnetic crystal classes dictate the makeup of magnetic Bragg diffraction patterns. Copper axial and polar magnetic multipoles contribute to resonant x-ray and magnetic neutron amplitudes in a symmetry informed analysis of monoclinic Cu $_2$ (MoO $_4$ )(SeO $_3$ ) presented with a view to steering future diffraction experiments. The compound might be viewed as a low-dimensional quantum magnet on account of its crystal structure and extreme Cu spin (S = 1/2).

Keywords

Bragg diffraction noncollinear antiferromagnet PT-symmetric Cu$_2$(MoO$_4$)(SeO$_3$) magnetic multipoles

Cite

@article{arxiv.2407.18640,
  title  = {A case for Bragg diffraction by a noncollinear (PT)-symmetric antiferromagnet Cu$_2$(MoO$_4$)(SeO$_3$)},
  author = {S. W. Lovesey and G. van der Laan},
  journal= {arXiv preprint arXiv:2407.18640},
  year   = {2024}
}

Comments

arXiv admin note: text overlap with arXiv:2406.17401

A case for Bragg diffraction by a noncollinear (PT)-symmetric antiferromagnet Cu$_2$(MoO$_4$)(SeO$_3$)

Abstract

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