Ferroelectrically switchable chirality in topological superconductivity
Kai-Zhi Bai, Bo Fu, Shun-Qing Shen
DOI 10.1103/9jg5-7rk5 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
The interplay between ferroelectricity, magnetism, and superconductivity provides a rich platform for discovering novel quantum phenomena. Here, we develop an effective theory and propose a heterostructure composed of an antiferromagnetic bilayer MnBi2Te4 coupled with the s-wave superconductor Fe(Se,Te), enabling the realization of chiral topological superconductivity (CTSC) with switchable chirality. The chirality of the CTSC is controlled by the direction of spontaneous polarization, which arises from interlayer sliding-induced ferroelectricity or charge transfer in the bilayer MnBi2Te4. This sliding mechanism breaks the MzT and PT symmetries, leading to the anomalous Hall effect in the spin-polarized metallic Dirac band and drives the emergence of CTSC when the s-wave superconductivity appears. Our work not only provides a pathway to achieve and control topological superconductivity but also opens avenues for experimental exploration of Majorana physics and topological quantum computation.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Fe(Se,Te) Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Intrinsic chiral topological superconductor thin films
similarity 0.96Xi Luo et al.
Source status unknown — claims are unverified
Intrinsic second-order topological superconductors with tunable Majorana zero modes
similarity 0.94Xiao-Jiao Wang et al.
Source status unknown — claims are unverified
Population inversion and dynamical phase transitions in a driven superconductor
similarity 0.93H. P. Ojeda Collado et al.
Source status unknown — claims are unverified
Ferroelectrically Switchable Chirality in Topological Superconductivity
similarity 0.93Kai-Zhi Bai et al. · 2026 · arXiv:2505.01759
Source status unknown — claims are unverified
Superconductivity near an Ising nematic quantum critical point in two dimensions
similarity 0.93Jie Huang et al.
Source status unknown — claims are unverified
Superconducting fluctuations in FeSe investigated by precise torque magnetometry
similarity 0.93Hideyuki Takahashi et al.
Source status unknown — claims are unverified