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Updated: Jan 6, 2026

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
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Intra-Unit-Cell Singlet Pairing Mediated by Altermagnetic Fluctuations.

Yi-Ming Wu1, Yuxuan Wang2, Rafael M Fernandes3,4

  • 1Stanford University, Leinweber Institute for Theoretical Physics, Stanford, California 94305, USA.

Physical Review Letters
|October 25, 2025
PubMed
Summary

Altermagnetic fluctuations drive superconductivity, favoring distinct pairing states based on fluctuation range. Shorter-range fluctuations induce intra-unit-cell pairing, while longer-range ones stabilize spin-triplet p-wave states.

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