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May 17, 2026Advanced MaterialsOpen Access

Thermal‐Driven Diode Polarity Switching From Competing Helical Superconducting States in WTe 2 /α‐Fe 2 O 3 Heterostructures

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Authors

EZEnze ZhangGYGrant Z. X. YangZSZi-Ting Sun

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Overview

Randomized trial explores thermal-driven polarity switching in heterostructures, indicating novel superconducting behaviors.

Key Points

  • The study aims to investigate the superconducting diode effect in WTe2/α-Fe2O3 heterostructures and the mechanisms behind polarity switching.
  • Utilized lateral Nb-proximitized Josephson junctions with WTe2 and α-Fe2O3.
  • Applied in-plane and out-of-plane magnetic fields for polarity initialization.
  • Performed theoretical calculations to analyze the formation of helical superconducting states.
  • Demonstrated robust Josephson diode response with polarity that can be reversed by heating above the superconducting transition and cooling.
  • Observed thermal-driven switching between competing superconducting states.
  • Proved that behaviors relate to distinct helical superconducting states linked to opposite center-of-mass momenta.

Cite This Study

Zhang et al. (2026) studied this question.

synapsesocial.com/papers/6a095c147880e6d24efe221fhttps://doi.org/10.1002/adma.202521648
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