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PreprintCC BY 4.0arXiv

Parity-Selective Quantum Interference in Unconventional Magnets

  • Yiyuan Chen
  • Xiao-Bin Qiang
  • Hai-Zhou Lu
  • Congjun Wu
  • X. C. Xie
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Abstract

Nonrelativistic spin splitting has emerged as a defining feature of unconventional magnetic states. Here we show that quantum interference offers a symmetry-resolved probe for the parity of such spin splitting, as even- and odd-parity magnets exhibit qualitatively different weak (anti-)localization behaviors. Even-parity magnets can host time-reversal symmetric scattering loops depicted by the spin group, giving rise to a weak localization that can be suppressed by spin-orbit coupling. In contrast, odd-parity magnets have a hidden weak antilocalization that can be released by spinorbit coupling. We further derive the corresponding magnetoconductivity formulas to facilitate experimental explorations. Our results not only advance the weak (anti-)localization theory to unconventional magnets but also suggest a practical diagnostic of unconventional spin-split magnetic states.

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Cite

BibTeXRIS
BibTeX
@misc{chen2026parityselective,
  title = {{Parity-Selective Quantum Interference in Unconventional Magnets}},
  author = {Yiyuan Chen and Xiao-Bin Qiang and Hai-Zhou Lu and Congjun Wu and X. C. Xie},
  howpublished = {arXiv},
  year = {2026},
  month = nov,
  doi = {10.48550/arxiv.2611.07330},
  eprint = {2611.07330},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2611.07330},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Parity-Selective Quantum Interference in Unconventional Magnets
AU  - Yiyuan Chen
AU  - Xiao-Bin Qiang
AU  - Hai-Zhou Lu
AU  - Congjun Wu
AU  - X. C. Xie
PY  - 2026
DA  - 2026/11/05
PB  - arXiv
DO  - 10.48550/arxiv.2611.07330
UR  - https://arxiv.org/abs/2611.07330
AB  - Nonrelativistic spin splitting has emerged as a defining feature of unconventional magnetic states. Here we show that quantum interference offers a symmetry-resolved probe for the parity of such spin splitting, as even- and odd-parity magnets exhibit qualitatively different weak (anti-)localization behaviors. Even-parity magnets can host time-reversal symmetric scattering loops depicted by the spin group, giving rise to a weak localization that can be suppressed by spin-orbit coupling. In contrast, odd-parity magnets have a hidden weak antilocalization that can be released by spinorbit coupling. We further derive the corresponding magnetoconductivity formulas to facilitate experimental explorations. Our results not only advance the weak (anti-)localization theory to unconventional magnets but also suggest a practical diagnostic of unconventional spin-split magnetic states.
ER  -