skip to main content

DOE PAGESDOE PAGES

Title: Differential conductance and defect states in the heavy-fermion superconductor CeCoIn 5

We demonstrate that the electronic band structure extracted from quasiparticle interference spectroscopy [Nat. Phys. 9, 468 (2013)] and the theoretically computed form of the superconducting gaps [Proc. Natl. Acad. Sci. USA 111, 11663 (2014)] can be used to understand the dI/dV line shape measured in the normal and superconducting state of CeCoIn5 [Nat. Phys. 9, 474 (2013)]. In particular, the dI/dV line shape, and the spatial structure of defect-induced impurity states, reflects the existence of multiple superconducting gaps of d x2–y2 symmetry. As a result, these results strongly support a recently proposed microscopic origin of the unconventional superconducting state.
Authors:
;  [1] ;  [2]
  1. Cornell Univ., Ithaca, NY (United States); Univ. of St. Andrews, Scotland (United Kingdom)
  2. Univ. of Illinois at Chicago, Chicago, IL (United States)
Publication Date:
Report Number(s):
BNL-111974-2016-JA
Journal ID: ISSN 2469-9950; PRBMDO; R&D Project: PM007; KC0201010
Grant/Contract Number:
SC00112704; FG02-05ER46225; AC02-98CH10886
Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 93; Journal Issue: 4; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1246798
Alternate Identifier(s):
OSTI ID: 1235783

John S. Van Dyke, Davis, James C., and Morr, Dirk K.. Differential conductance and defect states in the heavy-fermion superconductor CeCoIn5. United States: N. p., Web. doi:10.1103/PhysRevB.93.041107.
John S. Van Dyke, Davis, James C., & Morr, Dirk K.. Differential conductance and defect states in the heavy-fermion superconductor CeCoIn5. United States. doi:10.1103/PhysRevB.93.041107.
John S. Van Dyke, Davis, James C., and Morr, Dirk K.. 2016. "Differential conductance and defect states in the heavy-fermion superconductor CeCoIn5". United States. doi:10.1103/PhysRevB.93.041107. https://www.osti.gov/servlets/purl/1246798.
@article{osti_1246798,
title = {Differential conductance and defect states in the heavy-fermion superconductor CeCoIn5},
author = {John S. Van Dyke and Davis, James C. and Morr, Dirk K.},
abstractNote = {We demonstrate that the electronic band structure extracted from quasiparticle interference spectroscopy [Nat. Phys. 9, 468 (2013)] and the theoretically computed form of the superconducting gaps [Proc. Natl. Acad. Sci. USA 111, 11663 (2014)] can be used to understand the dI/dV line shape measured in the normal and superconducting state of CeCoIn5 [Nat. Phys. 9, 474 (2013)]. In particular, the dI/dV line shape, and the spatial structure of defect-induced impurity states, reflects the existence of multiple superconducting gaps of dx2–y2 symmetry. As a result, these results strongly support a recently proposed microscopic origin of the unconventional superconducting state.},
doi = {10.1103/PhysRevB.93.041107},
journal = {Physical Review B},
number = 4,
volume = 93,
place = {United States},
year = {2016},
month = {1}
}