Differential conductance and defect states in the heavy-fermion superconductor CeCoIn5
Abstract
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.
- Authors:
-
- Cornell Univ., Ithaca, NY (United States); Univ. of St. Andrews, Scotland (United Kingdom)
- Univ. of Illinois at Chicago, Chicago, IL (United States)
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1246798
- Alternate Identifier(s):
- OSTI ID: 1235783
- 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
- Resource Type:
- Journal Article: 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)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
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., 2016.
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. https://doi.org/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. https://doi.org/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},
url = {https://www.osti.gov/biblio/1246798},
journal = {Physical Review B},
issn = {2469-9950},
number = 4,
volume = 93,
place = {United States},
year = {Fri Jan 22 00:00:00 EST 2016},
month = {Fri Jan 22 00:00:00 EST 2016}
}
Web of Science
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