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Proceedings Paper

Probing superconducting transition in underdoped La2-xSrxCuO4 by low-temperature resistance noise spectroscopy
Author(s): Xiaoyan Shi; Zhenzhong Shi; Dragana Popović
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Paper Abstract

We report the resistance noise spectroscopy technique and its applications in detecting the nature of high- temperature superconducting transition in cuprates. In underdoped La2-xSrxCuO4 thick films, in which inter- layer coupling is relatively weak and thus the system is effectively two-dimensional, resistance noise spectroscopy shows the first experimental evidence of intrinsic correlated dynamics near the superconducting transition of the Berezinskii-Kosterlitz-Thouless type. In particular, resistance fluctuations in the low-temperature ordered phase are correlated, slow and nonergodic, i.e., the system exhibits properties that cannot be fully detected in any reasonable experimental time frame.

Paper Details

Date Published: 28 February 2017
PDF: 6 pages
Proc. SPIE 10105, Oxide-based Materials and Devices VIII, 1010503 (28 February 2017); doi: 10.1117/12.2267197
Show Author Affiliations
Xiaoyan Shi, The Univ. of Texas at Dallas (United States)
Zhenzhong Shi, National High Magnetic Field Lab. (United States)
Dragana Popović, National High Magnetic Field Lab. (United States)

Published in SPIE Proceedings Vol. 10105:
Oxide-based Materials and Devices VIII
Ferechteh H. Teherani; David C. Look; David J. Rogers, Editor(s)

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