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Title: Destroying Coherence in High-Temperature Superconductors with Current Flow

Journal Article · · Physical Review. X

Here, the loss of single-particle coherence going from the superconducting state to the normal state in underdoped cuprates is a dramatic effect that has yet to be understood. Here, we address this issue by performing angle resolved photoemission spectroscopy measurements in the presence of a transport current. We find that the loss of coherence is associated with the development of an onset in the resistance, in that well before the midpoint of the transition is reached, the sharp peaks in the angle resolved photoemission spectra are completely suppressed. Since the resistance onset is a signature of phase fluctuations, this implies that the loss of single-particle coherence is connected with the loss of long-range phase coherence.

Research Organization:
Ames Lab., Ames, IA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Grant/Contract Number:
DMR-1410364; DMR-0537588; AC02-07CH11358; AC02-06CH11357
OSTI ID:
1324379
Alternate ID(s):
OSTI ID: 1337679; OSTI ID: 1352643
Report Number(s):
IS-J-9043; PRXHAE; 031040
Journal Information:
Physical Review. X, Journal Name: Physical Review. X Vol. 6 Journal Issue: 3; ISSN 2160-3308
Publisher:
American Physical SocietyCopyright 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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