Two step disordering of the vortex lattice across the peak effect in a weakly pinned Type II superconductor, Co0.0075NbSe2
arXiv:1406.7422 · doi:10.1038/srep10613
Abstract
The vortex lattice in a Type II superconductor provides a versatile model system to investigate the order-disorder transition in a periodic medium in the presence of random pinning. Here, using scanning tunnelling spectroscopy in a weakly pinned Co0.0075NbSe2 single crystal, we show that at low temperatures, the vortex lattice in a 3-dimensional superconductor disorders in two steps across the peak effect. At the onset of the peak effect, the equilibrium Bragg glass transforms into an orientational glass through the proliferation of dislocations. At a higher field, the dislocations dissociate into isolated disclination giving rise to an amorphous vortex glass. We also show the existence of a variety of additional non-equilibrium metastable states, which can be accessed through different thermomagnetic cycling.
arXiv commentThe analysis of the positional and orientational correlation functions have been refined in this version of the manuscript
References in corpus (19)
- The Flux-Line Lattice in Superconductors
- Elastic theory of flux lattices in presence of weak disorder
- Phase diagrams of flux lattices with disorder
- Instabilities and disorder-driven first-order transition of the vortex lattice
- Dynamic instabilities and memory effects in vortex matter
- Metastability and Glassy Behavior of a Driven Flux-Line Lattice
- A Bragg glass phase in the vortex lattice of a type II superconductor
- Direct observation of melting in a 2-D superconducting vortex lattice
- Imaging superconducting vortex core and lattice with the scanning tunneling microscope
- Enhancement of long range correlations in a 2D vortex lattice by incommensurate 1D disorder potential
- STM Imaging of Flux Line Arrangements in the Peak Effect Regime
- Phase Behavior of Type-II Superconductors with Quenched Point Pinning Disorder: A Phenomenological Proposal
- Peak Effect, Fishtail Effect and Plateau Effect : The Reentrant Amorphization of Vortex Matter in 2H-NbSe_2
- Ordered, disordered and coexistent stable vortex lattices in NbSe_2 single crystals
- Peak effect in CeRu:history dependence and supercooling
- Stable and Metastable vortex states and the first order transition across the peak effect region in weakly pinned 2H-NbSe_2
- Real-space vortex glass imaging and the vortex phase diagram of SnMo6S8
- Giant low frequency velocity fluctuations in a driven vortex lattice
- A 350 mK, 9 T scanning tunneling microscope for the study of superconducting thin films and single crystals
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- Dewetting and Spreading Transitions for Active Matter on Random Pinning Substrates
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- Ac dynamic reorganization and non-equilibrium phase transition in driven vortex matter
- Inverse melting and re-entrant transformations of the vortex lattice in amorphous Re6Zr thin film
- Peak Effect, Melting, and Transport in Skyrmion Crystals
- Orientational coupling between the vortex lattice and the crystalline lattice in a weakly pinned Co0.0075NbSe2 single crystal
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