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cond-mat.str-el2026
Thermally Enhanced Pseudo-Goldstone Spin Gap in the Isotropic Helimagnet ZnCrSe
N. D. Andriushin, A. Sanders, J. Reuther +8
In magnetically ordered systems, the spin gap in the magnon spectrum is normally expected to decrease on warming and close at the transition out of the long-range order. The presen…
cond-mat.str-el2026
From dimensional reduction to tetramerization in mixed ferro-antiferro breathing pyrochlores
Sourin Chatterjee, Kelvin Salou-Smith, Benedikt Schneider +8
We study the spin-1/2 nearest-neighbor Heisenberg model on the breathing pyrochlore lattice in the mixed ferro-antiferromagnetic regime, where one tetrahedral sublattice is antifer…