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Title: Effect of disorder on superconductivity in the presence of spin-density wave order

Abstract

The majority of unconventional superconductors has close proximity to a magnetic phase. In many cases, the magnetic phase coexists with superconductivity in some fraction of the phase diagram. The response of these two competing phases to disorder can be used as a tool to gain a better understanding of these complex systems. Here I consider the effect of disorder on a multiband superconductor appropriate for the ferro-pnictide superconductors. I consider both interband and intraband scattering for a two-band model consisting of a hole pocket and an electron pocket. The scattering from pointlike impurities is treated within the self-consistent Born approximation. I calculate the effect of disorder on the transition temperature to the superconducting state. Finally, the influence of impurity scattering on the low-energy excitation spectrum in the superconducting state is also studied for different kinds of gap structures.

Authors:
 [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Center for Emergent Superconductivity (CES)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1385582
Alternate Identifier(s):
OSTI ID: 1180069
Grant/Contract Number:  
AC02-98CH10886; AC0298CH1088
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 91; Journal Issue: 10; Related Information: CES partners with Brookhaven National Laboratory (BNL); Argonne National Laboratory; University of Illinois, Urbana-Champaign; Los Alamos National Laboratory; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; phonons; thermal conductivity; energy storage (including batteries and capacitors); superconductivity; defects; spin dynamics

Citation Formats

Mishra, Vivek. Effect of disorder on superconductivity in the presence of spin-density wave order. United States: N. p., 2015. Web. doi:10.1103/PhysRevB.91.104501.
Mishra, Vivek. Effect of disorder on superconductivity in the presence of spin-density wave order. United States. doi:10.1103/PhysRevB.91.104501.
Mishra, Vivek. Mon . "Effect of disorder on superconductivity in the presence of spin-density wave order". United States. doi:10.1103/PhysRevB.91.104501. https://www.osti.gov/servlets/purl/1385582.
@article{osti_1385582,
title = {Effect of disorder on superconductivity in the presence of spin-density wave order},
author = {Mishra, Vivek},
abstractNote = {The majority of unconventional superconductors has close proximity to a magnetic phase. In many cases, the magnetic phase coexists with superconductivity in some fraction of the phase diagram. The response of these two competing phases to disorder can be used as a tool to gain a better understanding of these complex systems. Here I consider the effect of disorder on a multiband superconductor appropriate for the ferro-pnictide superconductors. I consider both interband and intraband scattering for a two-band model consisting of a hole pocket and an electron pocket. The scattering from pointlike impurities is treated within the self-consistent Born approximation. I calculate the effect of disorder on the transition temperature to the superconducting state. Finally, the influence of impurity scattering on the low-energy excitation spectrum in the superconducting state is also studied for different kinds of gap structures.},
doi = {10.1103/PhysRevB.91.104501},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 10,
volume = 91,
place = {United States},
year = {2015},
month = {3}
}

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Free Publicly Available Full Text
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Cited by: 6 works
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Works referenced in this record:

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