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PreprintarXiv licencearXiv

Intrinsic Orbital Hall Effect in Degenerate Spin-3/2 Systems driven by the quantum metric

  • Rhonald Burgos Atencia
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Abstract

We show that in rotationally invariant spin-3/2 systems the orbital Hall effect originates from interband matrix elements of the orbital magnetic moment. The resulting Hall response is governed by the quantum metric, rather than by the Berry curvature, revealing a purely geometric transport mechanism. Conventional intraband contributions associated with the orbital magnetic moment and Berry curvature are shown to vanish identically in degenerate systems. These results identify the quantum metric as the key geometric quantity controlling orbital Hall transport in degenerate multiband systems.

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Cite

BibTeXRIS
BibTeX
@misc{atencia2026intrinsic,
  title = {{Intrinsic Orbital Hall Effect in Degenerate Spin-3/2 Systems driven by the quantum metric}},
  author = {Rhonald Burgos Atencia},
  howpublished = {arXiv},
  year = {2026},
  month = jul,
  doi = {10.48550/arxiv.2607.28744},
  eprint = {2607.28744},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.28744},
}
RIS
TY  - UNPB
TI  - Intrinsic Orbital Hall Effect in Degenerate Spin-3/2 Systems driven by the quantum metric
AU  - Rhonald Burgos Atencia
PY  - 2026
DA  - 2026/07/30
PB  - arXiv
DO  - 10.48550/arxiv.2607.28744
UR  - https://arxiv.org/abs/2607.28744
AB  - We show that in rotationally invariant spin-3/2 systems the orbital Hall effect originates from interband matrix elements of the orbital magnetic moment. The resulting Hall response is governed by the quantum metric, rather than by the Berry curvature, revealing a purely geometric transport mechanism. Conventional intraband contributions associated with the orbital magnetic moment and Berry curvature are shown to vanish identically in degenerate systems. These results identify the quantum metric as the key geometric quantity controlling orbital Hall transport in degenerate multiband systems.
ER  -