Glide-plane symmetry and superconducting gap structure of iron-based superconductors
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States); Univ. of Florida, Gainsville, FL (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Univ. of Florida, Gainsville, FL (United States)
- Univ. of California, Santa Barbara, CA (United States)
We consider the effect of glide-plane symmetry of the Fe-pnictogen/chalcogen layer in Fe-based superconductors on pairing in spin fluctuation models. Recent theories propose that so-called η-pairing states with nonzero total momentum can be realized and possess such exotic properties as odd parity spin singlet symmetry and time-reversal symmetry breaking. Here we show that when there is orbital weight at the Fermi level from orbitals with even and odd mirror reflection symmetry in z, η pairing is inevitable; however, we conclude from explicit calculation that the gap function appearing in observable quantities is identical to that found in earlier pseudocrystal momentum calculations with 1 Fe per unit cell.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- AC05-00OR22725; FG02-05ER46236
- OSTI ID:
- 1213318
- Alternate ID(s):
- OSTI ID: 1180659
- Journal Information:
- Physical Review Letters, Vol. 114, Issue 10; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Low-energy microscopic models for iron-based superconductors: a review
|
journal | November 2016 |
Competing collinear magnetic structures in superconducting FeSe by first-principles quantum Monte Carlo calculations
|
journal | July 2016 |
Competing collinear magnetic structures in superconducting FeSe by first principles quantum Monte Carlo calculations | text | January 2016 |
Low-energy microscopic models for iron-based superconductors: a review | text | January 2016 |
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