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1/F NOISE IN THE RESISTIVE TRANSITION REGION OF HIGH-TEMPERATURE SUPERCONDUCTOR YBCO MICROBRIDGED THIN-FILMS SCIE SCOPUS

Title
1/F NOISE IN THE RESISTIVE TRANSITION REGION OF HIGH-TEMPERATURE SUPERCONDUCTOR YBCO MICROBRIDGED THIN-FILMS
Authors
HAN, KHKU, JKLEE, SHLEE, SISHIN, HJ
Date Issued
1991-11
Publisher
IOP PUBLISHING LTD
Abstract
The measurement of the normalized noise power spectral density (Sn(f) = S(v)(f)/V2) of the YBCO microbridge shows 1/f(alpha) dependence. The key features of the present measurements are as follows: (1) in the normal state, S(n)(f) is several orders of magnitude larger than the value predicted by Hooge; (2) near T(c) Sn(f) increases by several orders of magnitude and alpha-approaches 2; (3) the noise power increases in a magnetic field near T(c). This enhancement of S(n)(f) seems to be related to fluctuation at the phase transition due to the instability of Cooper pair formation and breaking.
URI
https://oasis.postech.ac.kr/handle/2014.oak/22224
DOI
10.1088/0953-2048/4/11/034
ISSN
0953-2048
Article Type
Article
Citation
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, vol. 4, no. 11, page. 677 - 679, 1991-11
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