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Title: Josephson Scanning Tunneling Spectroscopy in d x 2 - y 2 -Wave Superconductors: A Probe for the Nature of the Pseudogap in the Cuprate Superconductors

Journal Article · · Physical Review Letters

Recent advances in the development of Josephson scanning tunneling spectroscopy (JSTS) have opened a new path for the exploration of unconventional superconductors. We demonstrate that the critical current I c , measured via JSTS, images the spatial form of the superconducting order parameter in d x 2 - y 2 -wave superconductors around defects and in the Fulde-Ferrell-Larkin-Ovchinnikov state. Furthermore, we show that I c probes the existence of phase-incoherent superconducting correlations in the pseudogap region of the cuprate superconductors, thus providing unprecedented insight into its elusive nature. These findings offer the missing theoretical link between the experimentally measured I c and the spatial structure of the superconducting order parameter.

Research Organization:
Univ. of Illinois, Chicago, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
FG02-05ER46225
OSTI ID:
1593518
Alternate ID(s):
OSTI ID: 1530637
Journal Information:
Physical Review Letters, Vol. 123, Issue 1; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

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Cited By (3)

Quantum engineered Kondo lattices journal December 2019
Quantum Engineered Kondo Lattices text January 2019
Quasiclassical circuit-theory of contiguous disordered multiband superconductors text January 2019

Figures / Tables (5)


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