Current-induced magnetoresistance hysteresis in the kagome superconductor CsV3Sb5
Han-Xin Lou, Xing-Guo Ye, Xin Liao, Qing Yin, Da-Peng Yu, Zhi-Min Liao
DOI 10.1103/PhysRevB.111.014503 · Physical Review B
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Abstract
We report the observation of current-modulated magnetoresistance hysteresis below the superconducting transition temperature in the kagome superconductor CsV3Sb5. This highly tunable hysteresis behavior is confined to the superconducting state and vanishes when superconductivity is fully suppressed, directly linking magnetoresistance hysteresis to the superconducting order in CsV3Sb5. Additionally, the superconducting diode effect driven by a small magnetic field is observed, indicating the enhanced electronic magnetochiral anisotropy by the chiral domain-wall scattering. Our findings position CsV3Sb5 as a promising platform for exploring nontrivial physical phenomena, including unconventional pairing mechanisms and topological superconductivity.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| CsV3Sb5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.2 | Pressure not reported | onset |
| KV3Sb5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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