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Abstract
Superconducting vortex lattices, glasses, and liquids attract great interest as model systems of crystallization and as a source of microscopic information of the nature of superconductivity. We report direct microscopic measurements of the vortex lattice tilt modulus c(44) in ultrapure niobium using time-resolved small-angle neutron scattering. Aside from a general trend to faster vortex lattice dynamics for increasing temperatures, we observe a dramatic changeover of the relaxation process associated with the nontrivial vortex lattice morphology in the intermediate mixed state. This changeover is attributed to a Landau branching of the Shubnikov domains at the surface of the sample. Our study represents a showcase for how to access directly vortex lattice melting and the formation of vortex matter states for other systems.
Original language | English |
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Pages (from-to) | 184502 |
Number of pages | 1 |
Journal | Physical Review B |
Volume | 83 |
Issue number | 18 |
DOIs | |
Publication status | Published - 1 May 2011 |
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Dive into the research topics of 'Time-resolved stroboscopic neutron scattering of vortex lattice dynamics in superconducting niobium'. Together they form a unique fingerprint.Projects
- 1 Finished
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Magnetic Flux Structures and Phase Transitions in Unconventional and Conventional Superconductors
Forgan, T. & Blackburn, E.
Engineering & Physical Science Research Council
1/04/09 → 30/09/12
Project: Research Councils