Abstract
Muon-spin rotation spectroscopy (μ SR) has been used to measure the internal magnetic field distribution in NbSe2 for Hc1 ≪ H < 0.25Hc2. The deduced profiles of the supercurrent density Js indicate that the vortex-core radius ρ0 in the bulk decreases sharply with increasing magnetic field. This effect, which is attributed to increased vortex-vortex interactions, does not agree with the dirty-limit microscopic theory. A simple phenomenological equation in which ρ0 depends on the intervortex spacing is used to model this behavior. In addition, we find for the first time that the in-plane magnetic penetration depth λab increases linearly with H in the vortex state of a conventional superconductor. 1997
Original language | English |
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Pages (from-to) | 1742-1745 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 79 |
Issue number | 9 |
DOIs | |
State | Published - Jan 1 1997 |
ASJC Scopus subject areas
- Physics and Astronomy (all)