ANOMALOUSLY ENHANCED NOISE SPECTRAL DENSITIES OF YBCO MICRO-BRIDGE NEAR THE RESISTIVE TRANSITION REGION
SCIE
SCOPUS
- Title
- ANOMALOUSLY ENHANCED NOISE SPECTRAL DENSITIES OF YBCO MICRO-BRIDGE NEAR THE RESISTIVE TRANSITION REGION
- Authors
- HAN, KH; LEE, SI; LEE, SH; SALK, SHS; KU, JK; SHIN, HJ
- Date Issued
- 1991-12-01
- Publisher
- ELSEVIER SCIENCE BV
- Abstract
- We have systematically measured the normalized noise power spectral density (Sn(f) = S(v)(f)/V2) of the YBCO microbridge and found V2/f(alpha) dependence. Near the zero resistance temperature (T(c,zero)), S(n)(f) increases more than eight orders of magnitude. Moreover, alpha changes from 1 to 2. Furthermore, once a magnetic field is applied, S(n)(f) showed a marked increase near T(c,zero). This anomaly is attributed to magnetic vortices coupled with the enhanced instability of space-time coherence associated with Cooper pair as a result of applied magnetic field, in addition to the thermal fluctuation.
- Keywords
- SUPERCONDUCTORS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/22231
- DOI
- 10.1016/0921-4534(91)91046-7
- ISSN
- 0921-4534
- Article Type
- Article
- Citation
- PHYSICA C, vol. 185, page. 1841 - 1842, 1991-12-01
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- There are no files associated with this item.
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