Dynamic studies of vortices in NbSe2, from single flux lines to lattices

Citation
F. Pardo et al., Dynamic studies of vortices in NbSe2, from single flux lines to lattices, PHYSICA C, 332(1-4), 2000, pp. 160-165
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
332
Issue
1-4
Year of publication
2000
Pages
160 - 165
Database
ISI
SICI code
0921-4534(200005)332:1-4<160:DSOVIN>2.0.ZU;2-3
Abstract
We present different techniques to study the dynamics of the vortex lattice in NbSe2 single crystal samples. In the first set of experiments, we appli ed a field parallel to the c crystalline axis and extended the Bitter decor ation technique to the study of dynamic structures by imaging the lattice d uring creep ("decoration during motion"). This method exposed a new smectic phase and an anisotropic "crystal" at higher fields. In the second set, we used a micro-mechanical high-e oscillator to study the mesoscopic flux dyn amics along the crystallographic ab plane. In this case, we were able to ob serve single vortex penetration, well described by a '1 + 1' -dimensional m odel. (C) 2000 Published by Elsevier Science B.V. All rights reserved.