PT-symmetric antiferromagnets support antiferro-chiral phonons whose sublattice-staggered angular momentum couples to the Neel vector via molecular Berry curvature.
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A nonequilibrium Green's function framework predicts negative differential spin Seebeck effect and spin-current rectification in normal-metal–chiral-insulator heterostructures driven by phonon angular momentum.
Supercurrent induces phonon angular momentum in mixed parity superconductors and s-wave superconductors with spin-orbit coupling, with analytical expressions derived via perturbative calculation.
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Antiferro-Chiral Phonons in $\mathcal{P}\mathcal{T}$-Symmetric Antiferromagnets
PT-symmetric antiferromagnets support antiferro-chiral phonons whose sublattice-staggered angular momentum couples to the Neel vector via molecular Berry curvature.
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Spin Seebeck Effect in Normal-Metal--Chiral-Insulator Heterostructure
A nonequilibrium Green's function framework predicts negative differential spin Seebeck effect and spin-current rectification in normal-metal–chiral-insulator heterostructures driven by phonon angular momentum.
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Supercurrent-induced phonon angular momentum
Supercurrent induces phonon angular momentum in mixed parity superconductors and s-wave superconductors with spin-orbit coupling, with analytical expressions derived via perturbative calculation.