Khare, Neeraj ; Gupta, A. K. ; Hossain, Z. ; Nagarajan, R. ; Gupta, L. C. ; Vijayaraghavan, R. (1999) Temperature dependence of rf-SQUID effect due to natural grain boundary junctions in YNi2B2C Physica C: Superconductivity, 316 (3-4). pp. 257-260. ISSN 0921-4534
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0921-4534(99)00195-1
Abstract
The rf-SQUID effect in YNi2B2C bulk superconductor due to natural grain boundary Josephson junctions has been observed up to 13.2 K. At 4.2 K, the peak to peak amplitude of the SQUID modulation was 1.5 mV. The bulk rf-SQUID operates in non-hysteretic mode. Flux noise spectrum of the SQUID at 4.2 K showed white noise down to 0.3 Hz and in this region flux noise density, √Sφ was ≈2×10−3 φo/√Hz. Rapid increase in flux noise observed at T > 10 K has been attributed to flux hopping.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | rf-SQUID Effect; YNi2B2C; Natural Grain Boundary Junctions |
| ID Code: | 61758 |
| Deposited On: | 15 Sep 2011 12:01 |
| Last Modified: | 10 Jul 2012 08:51 |
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