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Title: Visualization of atomic-scale phenomena in superconductors: application to FeSe

Abstract

Here we propose a simple method of calculating inhomogeneous, atomic-scale phenomena in superconductors which makes use of the wave function information traditionally discarded in the construction of tight-binding models used in the Bogoliubov-de Gennes equations. The method uses symmetry- based first principles Wannier functions to visualize the effects of superconducting pairing on the distribution of electronic states over atoms within a crystal unit cell. Local symmetries lower than the global lattice symmetry can thus be exhibited as well, rendering theoretical comparisons with scanning tunneling spectroscopy data much more useful. As a simple example, we discuss the geometric dimer states observed near defects in superconducting FeSe.

Authors:
 [1];  [2];  [1];  [3];  [1]
  1. Univ. of Florida, Gainesville, FL (United States). Dept. of Physics
  2. Univ. of Florida, Gainesville, FL (United States). Dept. of Physics; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS)
  3. Hangzhou Normal Univ., Hangzhou (China). Dept. of Physics
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Org.:
USDOE
OSTI Identifier:
1185487
Alternate Identifier(s):
OSTI ID: 1180956
Grant/Contract Number:  
AC05-00OR22725; FG02-05ER46236; NSFC 11274006; AC02- 98CH10886; AC02-98CH10886
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 90; Journal Issue: 13; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Choubey, Peayush, Berlijn, Tom, Kreisel, Andreas, Cao, Chao, and Hirschfeld, Peter J. Visualization of atomic-scale phenomena in superconductors: application to FeSe. United States: N. p., 2014. Web. doi:10.1103/PhysRevB.90.134520.
Choubey, Peayush, Berlijn, Tom, Kreisel, Andreas, Cao, Chao, & Hirschfeld, Peter J. Visualization of atomic-scale phenomena in superconductors: application to FeSe. United States. https://doi.org/10.1103/PhysRevB.90.134520
Choubey, Peayush, Berlijn, Tom, Kreisel, Andreas, Cao, Chao, and Hirschfeld, Peter J. Fri . "Visualization of atomic-scale phenomena in superconductors: application to FeSe". United States. https://doi.org/10.1103/PhysRevB.90.134520. https://www.osti.gov/servlets/purl/1185487.
@article{osti_1185487,
title = {Visualization of atomic-scale phenomena in superconductors: application to FeSe},
author = {Choubey, Peayush and Berlijn, Tom and Kreisel, Andreas and Cao, Chao and Hirschfeld, Peter J.},
abstractNote = {Here we propose a simple method of calculating inhomogeneous, atomic-scale phenomena in superconductors which makes use of the wave function information traditionally discarded in the construction of tight-binding models used in the Bogoliubov-de Gennes equations. The method uses symmetry- based first principles Wannier functions to visualize the effects of superconducting pairing on the distribution of electronic states over atoms within a crystal unit cell. Local symmetries lower than the global lattice symmetry can thus be exhibited as well, rendering theoretical comparisons with scanning tunneling spectroscopy data much more useful. As a simple example, we discuss the geometric dimer states observed near defects in superconducting FeSe.},
doi = {10.1103/PhysRevB.90.134520},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 13,
volume = 90,
place = {United States},
year = {Fri Oct 31 00:00:00 EDT 2014},
month = {Fri Oct 31 00:00:00 EDT 2014}
}

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Cited by: 30 works
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