Field-switchable half-metallicity
Electric-field-controlled ferroelectric polarization enables reversible semiconductor-to-half-metal transitions in twisted FeI₂ bilayers, offering a new route to ultrahigh-density nonvolatile memory.
Zhijian, He · Guoan, Ding · Zou, Daifeng · Lei, Chihou · Xie, Shuhong · Liu, Yunya
Applied Physics Letters 2025
Switching α-In₂Se₃ polarization triggers semiconductor-to-half-metal transition in bi-FeI₂
Exhibits electrically tunable four resistance states