Hidden piezo-Hall effect
Abstract
Extensive studies of hidden spin polarization have established a broad class of hidden phenomena in quantum materials. Here, we introduce the hidden piezo-Hall effect, in which strain induces finite anomalous Hall conductivities (AHCs) in individual sectors while the global AHC remains zero. At zero strain, neither the full system nor its sectors exhibit an anomalous Hall effect (AHE). Under uniaxial strain, however, opposite sector AHCs emerge while their sum remains canceled. We establish this effect for a d-wave hidden altermagnet using a tight-binding model and first-principles calculations for the experimentally synthesized material RbV2Te2O. Rotating the strain direction from the x to the y axis reverses the signs of the sector AHCs without generating a net Hall response. The same symmetry mechanism may also give rise to hidden piezomagneto-optical, piezo-thermal Hall, piezo-Nernst, and piezo-Ettingshausen effects. Our work extends hidden physics to strain-controlled transport and identifies RbV2Te2O as a promising candidate for experimental verification.
Related
- Piezo-Hall effect in RbCr2Se2O
- Pressure-correlation phase diagram unraveling quantum phase transitions in altermagnetic ε-FeOOH and realization of piezo-anomalous Hall effect
- Hidden Spin-Valley Hall Effect and Gate-Switchable Electric Hall Effect in 2D Altermagnets
- Fractional quantum spin Hall crystals from hidden density-wave order
- Ultra-low loss piezo-optomechanical low-confinement silicon nitride platform for visible wavelength quantum photonic circuits
BibTeX
@misc{guo2026hidden,
title = {{Hidden piezo-Hall effect}},
author = {San-Dong Guo and Shi-Hao Zhang and Bingwen Zhang},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.26293},
eprint = {2610.26293},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.26293},
}
RIS
TY - UNPB
TI - Hidden piezo-Hall effect
AU - San-Dong Guo
AU - Shi-Hao Zhang
AU - Bingwen Zhang
PY - 2026
DA - 2026/10/19
PB - arXiv
DO - 10.48550/arxiv.2610.26293
UR - https://arxiv.org/abs/2610.26293
AB - Extensive studies of hidden spin polarization have established a broad class of hidden phenomena in quantum materials. Here, we introduce the hidden piezo-Hall effect, in which strain induces finite anomalous Hall conductivities (AHCs) in individual sectors while the global AHC remains zero. At zero strain, neither the full system nor its sectors exhibit an anomalous Hall effect (AHE). Under uniaxial strain, however, opposite sector AHCs emerge while their sum remains canceled. We establish this effect for a d-wave hidden altermagnet using a tight-binding model and first-principles calculations for the experimentally synthesized material RbV_2Te_2O. Rotating the strain direction from the x to the y axis reverses the signs of the sector AHCs without generating a net Hall response. The same symmetry mechanism may also give rise to hidden piezomagneto-optical, piezo-thermal Hall, piezo-Nernst, and piezo-Ettingshausen effects. Our work extends hidden physics to strain-controlled transport and identifies RbV_2Te_2O as a promising candidate for experimental verification.
ER -