ONE-DIMENSIONAL MOTT INSULATOR FORMED BY QUANTUM VORTICES IN JOSEPHSON-JUNCTION ARRAYS

Authors
VANOUDENAARDEN A MOOIJ JE
Citation
A. Vanoudenaarden et Je. Mooij, ONE-DIMENSIONAL MOTT INSULATOR FORMED BY QUANTUM VORTICES IN JOSEPHSON-JUNCTION ARRAYS, Physical review letters, 76(26), 1996, pp. 4947-4950
Citations number
17
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
76
Issue
26
Year of publication
1996
Pages
4947 - 4950
Database
ISI
SICI code
0031-9007(1996)76:26<4947:OMIFBQ>2.0.ZU;2-9
Abstract
The quantum transport of vortices in very long and narrow arrays of sm all Josephson junctions has been studied experimentally. The chemical potential of the system can be changed by an external magnetic field. When the vortex density is commensurate with the one-dimensional junct ion lattice, the vortex mobility vanishes for a finite window of the m agnetic field. The localization of the vortices is due to the forming of a one-dimensional Mott insulator.