Experimental Study of Positionally Disordered Josephson Junctions Arrays
| dc.creator | Yun, Young-Je | |
| dc.creator | Baek, In-Cheol | |
| dc.creator | Choi, Mu-Yong | |
| dc.date | 2005-09-06 | |
| dc.date.accessioned | 2026-07-07T06:33:34Z | |
| dc.date.available | 2026-07-07T06:33:34Z | |
| dc.description | We experimentally studied the effect of positional disorder on a Josephson junction array with $f = n$, ${1/2} + n$, or ${2/5} + n$ flux quanta per unit cell for integral $n$. This system provides an experimental realization of a two-dimensional XY model with random phase shifts. Contrary to many earlier numerical and analytical investigations, our results suggest that low-temperature superconductivity is never destroyed by positional disorder. As the disorder strength increased, the Kosterltz-Thouless (KT) type order in the $f = 0$ and 1/2 systems changed to a non-KT type order with a long-range phase coherence, which persisted even in the maximal disorder limit. A possible finite-temperature glass transition is discussed. | |
| dc.description | 9 pages, 5 figures, RevTex4 | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0509151 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0509151 | |
| dc.identifier | Europhys. Lett. 76, 271 (2006) | |
| dc.identifier | doi:10.1209/epl/i2006-10258-6 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/99237 | |
| dc.subject | Superconductivity | |
| dc.title | Experimental Study of Positionally Disordered Josephson Junctions Arrays | |
| dc.type | text |