Volume 130, Number 4, May 2020
|Number of page(s)||7|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||23 June 2020|
Investigation of topological features of Sr2RuO4using the dissipationless momentum transport
Department of Physics, Ayatollah Boroujerdi University - Boroujerd, Lorestan 65151-36111, Iran
Received: 2 February 2020
Accepted: 28 May 2020
We consider the dynamical and topological properties of chiral superconductor Sr2RuO4 using the Hall viscosity for the various pairing channels, including the isotropic and anisotropic order parameters , the chiral state, and the nonchiral state. We show that the topological response to the viscoelastic field depends on the kind of the pairing, the spectral flow properties of the pairing, and the lattice effects, especially for anisotropic order parameters, i.e., the pairing between the next-nearest-neighbor sites and the 3rd-neighbor sites that leads to different residual static Hall viscosity and correlation length. We find that the gap functions and have the same dynamical properties.
PACS: 74.20.-z – Theories and models of superconducting state / 74.25.-q – Properties of superconductors / 74.90.+n – Other topics in superconductivity (restricted to new topics in section 74)
© EPLA, 2020
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