Elastoconductivity as a probe of broken mirror symmetries

Abstract

We propose the possible detection of broken mirror symmetries in correlated two-dimensional materials by elastotransport measurements. Using linear response theory we calculate the shearconductivity ${\Gamma }_{xx,xy}$, defined as the linear change of the longitudinal conductivity ${\sigma }_{xx}$ due to a shear strain ${\epsilon }_{xy}$. This quantity can only be non-vanishing when in-plane mirror symmetries are broken and we discuss how candidate states in the cuprate pseudogap regime (e.g. various loop current or charge orders) may exhibit a finite shearconductivity. We also provide a realistic experimental protocol for detecting such a response.

15 pages, 8 figures. Journal Ref added, Title updated, some references added. Also added a new section on training the shearconductivity response

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Cited by in corpus (4)

• Symmetry constraints on the elastoresistivity tensor
• Second harmonic generation as a probe of broken mirror symmetry
• Measurement of the $B_{1g}$ and $B_{2g}$ components of the elastoresistivity tensor for tetragonal materials via transverse resistivity configurations
• Quantum oscillations in a bilayer with broken mirror symmetry: a minimal model for YBa${}_2$Cu${}_3$O${}_{6+\delta }$