Variation of shear moduli across superconducting phase transitions - Archive ouverte HAL
Article Dans Une Revue Physical Review B: Condensed Matter (1978-1997) Année : 2020

Variation of shear moduli across superconducting phase transitions

Résumé

We study how shear moduli of a correlated metal change across superconducting phase transitions. Using a microscopic theory we explain why for most classes of superconductors this change is small. The Fe-based and the A15 systems are notable exceptions where the change is boosted by five orders of magnitude. We show that this boost is a consequence of enhanced nematic correlation. The theory explains the unusual temperature dependence of the orthorhombic shear and the back-bending of the nematic transition line in the superconducting phase of the Fe-based systems.

Dates et versions

hal-03022414 , version 1 (24-11-2020)

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Dimitri Labat, Panagiotis Kotetes, Brian M. Andersen, Indranil Paul. Variation of shear moduli across superconducting phase transitions. Physical Review B: Condensed Matter (1978-1997), 2020. ⟨hal-03022414⟩
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