Aharonov-Bohm interference from coherent spin-polarized edge transport in Fe(Te,Se) superconducting rings
Superconductivity
2025-08-08 v1 Mesoscale and Nanoscale Physics
Strongly Correlated Electrons
Abstract
We report the coexistence of Aharonov-Bohm and Little-Parks oscillations in mesoscopic Fe(Te,Se) rings. The magnetoresistance shows two distinct periodicities: an component from ballistic edge interference and an component from fluxoid quantization of Cooper pairs. Aharonov-Bohm oscillations persist deep into the superconducting phase, exhibit current-field symmetry, and follow a temperature dependence captured by a helical Luttinger liquid model, consistent with edge states in a topological superconductor.
Cite
@article{arxiv.2508.05030,
title = {Aharonov-Bohm interference from coherent spin-polarized edge transport in Fe(Te,Se) superconducting rings},
author = {Mohammad Javadi Balakan and Shiva Heidari and Genda Gu and Qiang Li and Kenji Watanabe and Takashi Taniguchi and Ji Ung Lee},
journal= {arXiv preprint arXiv:2508.05030},
year = {2025}
}