Spin-Triplet Superconductivity Mediated by Phonons in Quasi-One-Dimensional Systems
Yuuichi Suginishi, Hiroshi Shimahara
Abstract
We investigate the spin-triplet superconductivity mediated by phonons in quasi-one-dimensional (Q1D) systems with open Fermi surfaces. We obtain the ground state phase diagrams. It is found that spin-triplet superconductivity occurs for weak screening and strong on-site Coulomb interaction, even in the absence of any additional nonphonon pairing interactions. We find that the nodeless spin-triplet state is more favorable than the spin-triplet state with line nodes, for the parameter values of the Q1D superconductors (TMTSF)2X. We also find that Q1D open Fermi surface, which is the specific feature of this system, plays an essential role in the pairing symmetry. We discuss the compatibility of the present results with the experimental results in these compounds.
Create a lesson
Related papers
Constraining the Superconducting Gap of Monolayer FeSe/SrTiO3 via Statistical Analysis and Tip-Height-Dependent Tunneling Spectroscopy
Dongwon Shin, Xiyou Peng, Kaleb McClure et al.
Acoustic damping limits superfluid helium as a thermal bath for mechanical resonators
Yunhu Huang, Mehri Ebrahimi, Alireza Rashedi et al.
Superinsulation, electric confinement in condensed matter
M. Cristina Diamantini, Carlo A. Trugenberger
Observation of Superconductivity in a Cu-Rich High-Entropy Alloy
Arumugam Sonachalam
Imaging the Current Distribution in Superconducting Transition-Edge Sensors with Scanning SQUID Microscopy
Samantha Walker, Austin Kaczmarek, Douglas A. Bennett et al.
Asymmetric Little--Parks Oscillations as a Probe of Coupled Pairing Channels in Surface-Superconducting PtBi2PtBi2
Yuriy Yerin, Stefan-Ludwig Drechsler, Carsten Timm et al.