Density functional theory for superconductors with particle-hole asymmetric electronic structure
Ryosuke Akashi, Ryotaro Arita
DOI 10.1103/PhysRevB.88.014514 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
To extend the applicability of density functional theory for superconductors (SCDFT) to systems with significant particle-hole asymmetry, we construct an improved exchange-correlation kernel entering the gap equation. We show that the kernel is numerically stable and does not diverge even in the low-temperature limit. Solving the gap equation for model systems with the present kernel analytically and numerically, we find that the asymmetric component of electronic density of states, which has not been considered with the previous kernel, systematically decreases transition temperature (Tc). We present a case where the decrease of Tc amounts to several tens of percent.
Similar papers
Density Functional Theory for Superconductors with Particle-hole Asymmetric Electronic Structure
similarity 0.94Ryosuke Akashi & Ryotaro Arita · 2013 · arXiv:1305.0390
Source status unknown — claims are unverified
Development of Density-Functional Theory for a Plasmon-Assisted Superconducting State: Application to Lithium Under High Pressures
similarity 0.90Ryosuke Akashi & Ryotaro Arita
Source status unknown — claims are unverified
Superconductivity from retarded interactions in the presence of electron-hole asymmetry
similarity 0.89F. Marsiglio & J. E. Hirsch
Source status unknown — claims are unverified
Effects of impurities on superconductivity in noncentrosymmetric compounds
similarity 0.89V. P. Mineev & K. V. Samokhin
Source status unknown — claims are unverified
Particle-Hole Asymmetry in Doped Mott Insulators: Implications for Tunneling and Photoemission Spectroscopies
similarity 0.88Mohit Randeria et al. · 2004 · arXiv:cond-mat/0412096
Source status unknown — claims are unverified
Holographic superconductor model in a spatially anisotropic background
similarity 0.88Jun-ichirou Koga et al.
Source status unknown — claims are unverified