Electromagnetic Response of Layered Superconductors with Broken Lattice Inversion Symmetry

Abstract

We investigate the macroscopic effects of charge density waves (CDW) and superconductivity in layered superconducting systems with broken lattice inversion symmetry (allowing for piezoelectricity) such as two dimensional (2D) transition metal dichalcogenides (TMD). We work with the low temperature time dependent Ginzburg-Landau theory and study the coupling of lattice distortions and low energy CDW collective modes to the superconducting order parameter in the presence of electromagnetic fields. We show that superconductivity and piezoelectricity can coexist in these singular metals. Furthermore, our study indicates the nature of the quantum phase transition between a commensurate CDW phase and the stripe phase that has been observed as a function of applied pressure.

arXiv comment9 pages, 1 figure. Final version. Accepted in Phys.Rev.B

References in corpus (6)

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• Electron-electron interactions in graphene sheets
• Unconventional quasiparticle lifetime in graphite
• Nodal Liquid Theory of the Pseudo-Gap Phase of High-Tc Superconductors
• Charge-Density-Wave induced modifications to the quasiparticle self-energy in 2H TaSe2
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Cited by in corpus (6)

• The Effect of Charge Order on the Plasmon Dispersion in Transition-Metal Dichalcogenides
• Nodal liquid and s-wave superconductivity in transition metal dichalcogenides
• Excitonic pairing between nodal fermions
• Quantum Criticality and Superconductivity in Quasi-Two-Dimensional Dirac Electronic Systems
• Magnetic Field Effects on the Superconducting and Quantum Critical Properties of Layered Systems with Dirac Electrons
• Effects of a Magnetic Field on Superconductivity and Quantum Criticality in Quasi-Two-Dimensional Systems with Dirac Electrons