Order-disorder phase transition in NbSe2: Absence of amorphous vortex matter

Yanina Fasano; M. Menghini; F. De la Cruz; Y. Paltiel; Y. Myasoedov; E. Zeldov; M. J. Higgins; S. Bhattacharya

doi:10.1103/PhysRevB.66.020512

Order-disorder phase transition in NbSe₂: Absence of amorphous vortex matter

Yanina Fasano^*, M. Menghini, F. De la Cruz, Y. Paltiel, Y. Myasoedov, E. Zeldov, M. J. Higgins, S. Bhattacharya

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

Recent studies have proposed that the peak effect in the critical current (a dynamic property) is a consequence of an order-disorder phase transition in the vortex system. We have made magnetic decorations of vortex structures in samples with both phases. It is found that the structural symmetry of the disordered phase is polycrystalline rather than amorphous and that there is no obvious correlation between the topology of the vortex structure and the enhancement of the critical current in the disordered phase.

Original language	American English
Article number	020512
Pages (from-to)	205121-205124
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	66
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevB.66.020512
State	Published - 1 Jul 2002
Externally published	Yes

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10.1103/PhysRevB.66.020512

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abstract = "Recent studies have proposed that the peak effect in the critical current (a dynamic property) is a consequence of an order-disorder phase transition in the vortex system. We have made magnetic decorations of vortex structures in samples with both phases. It is found that the structural symmetry of the disordered phase is polycrystalline rather than amorphous and that there is no obvious correlation between the topology of the vortex structure and the enhancement of the critical current in the disordered phase.",

author = "Yanina Fasano and M. Menghini and {De la Cruz}, F. and Y. Paltiel and Y. Myasoedov and E. Zeldov and Higgins, {M. J.} and S. Bhattacharya",

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T2 - Absence of amorphous vortex matter

AU - Fasano, Yanina

AU - Menghini, M.

AU - De la Cruz, F.

AU - Paltiel, Y.

AU - Myasoedov, Y.

AU - Zeldov, E.

AU - Higgins, M. J.

AU - Bhattacharya, S.

PY - 2002/7/1

Y1 - 2002/7/1

N2 - Recent studies have proposed that the peak effect in the critical current (a dynamic property) is a consequence of an order-disorder phase transition in the vortex system. We have made magnetic decorations of vortex structures in samples with both phases. It is found that the structural symmetry of the disordered phase is polycrystalline rather than amorphous and that there is no obvious correlation between the topology of the vortex structure and the enhancement of the critical current in the disordered phase.

AB - Recent studies have proposed that the peak effect in the critical current (a dynamic property) is a consequence of an order-disorder phase transition in the vortex system. We have made magnetic decorations of vortex structures in samples with both phases. It is found that the structural symmetry of the disordered phase is polycrystalline rather than amorphous and that there is no obvious correlation between the topology of the vortex structure and the enhancement of the critical current in the disordered phase.

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ER -

Order-disorder phase transition in NbSe₂: Absence of amorphous vortex matter

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