Persistence of the intrinsic transition in the vortex matter of disordered BSCCO:2212 crystals

M. Konczykowski; C. J. Van Der Beek; E. Zeldov; Ming Li; P. H. Kes

doi:10.1016/j.physc.2004.03.208

Persistence of the intrinsic transition in the vortex matter of disordered BSCCO:2212 crystals

M. Konczykowski
, C. J. Van Der Beek
, E. Zeldov
, Ming Li
, P. H. Kes

École Polytechnique

Résultats de recherche: Contribution à un journal › Article de conférence › Revue par des pairs

Résumé

The first order melting transition (FOT) in vortex matter of clean Bi ₂Sr₂CaCu₂O₈ crystals, is identified by a discontinuity in the reversible magnetization, which extends to the low temperature (irreversible) regime in the form of a jump in the energy barrier vs. current, U(J), variation. Heavy ion irradiation disorders the vortex lattice, enhances flux pinning, and is believed to suppress the FOT. However, in underdoped samples, detailed measurements of magnetic relaxation by the Hall-array technique reveal the existence of a discontinuous jump in the U(J) curve precisely at the location of FOT of pristine crystals.

langue originale	Anglais
Pages (de - à)	547-548
Nombre de pages	2
journal	Physica C: Superconductivity and its Applications
Volume	408-410
Numéro de publication	1-4
Les DOIs	https://doi.org/10.1016/j.physc.2004.03.208
état	Publié - 1 août 2004
Evénement	Proceedings of the International Conference on Materials - Rio de Janeiro, Brésil Durée: 25 mai 2003 → 30 mai 2003

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10.1016/j.physc.2004.03.208

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@article{69a6ed032c1b4e82acfa5c0bf2e2a0d4,

title = "Persistence of the intrinsic transition in the vortex matter of disordered BSCCO:2212 crystals",

abstract = "The first order melting transition (FOT) in vortex matter of clean Bi 2Sr2CaCu2O8 crystals, is identified by a discontinuity in the reversible magnetization, which extends to the low temperature (irreversible) regime in the form of a jump in the energy barrier vs. current, U(J), variation. Heavy ion irradiation disorders the vortex lattice, enhances flux pinning, and is believed to suppress the FOT. However, in underdoped samples, detailed measurements of magnetic relaxation by the Hall-array technique reveal the existence of a discontinuous jump in the U(J) curve precisely at the location of FOT of pristine crystals.",

keywords = "Columnar defects, Phase transition",

author = "M. Konczykowski and \{Van Der Beek\}, \{C. J.\} and E. Zeldov and Ming Li and Kes, \{P. H.\}",

year = "2004",

month = aug,

day = "1",

doi = "10.1016/j.physc.2004.03.208",

language = "English",

volume = "408-410",

pages = "547--548",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

number = "1-4",

note = "Proceedings of the International Conference on Materials ; Conference date: 25-05-2003 Through 30-05-2003",

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TY - JOUR

T1 - Persistence of the intrinsic transition in the vortex matter of disordered BSCCO:2212 crystals

AU - Konczykowski, M.

AU - Van Der Beek, C. J.

AU - Zeldov, E.

AU - Li, Ming

AU - Kes, P. H.

PY - 2004/8/1

Y1 - 2004/8/1

N2 - The first order melting transition (FOT) in vortex matter of clean Bi 2Sr2CaCu2O8 crystals, is identified by a discontinuity in the reversible magnetization, which extends to the low temperature (irreversible) regime in the form of a jump in the energy barrier vs. current, U(J), variation. Heavy ion irradiation disorders the vortex lattice, enhances flux pinning, and is believed to suppress the FOT. However, in underdoped samples, detailed measurements of magnetic relaxation by the Hall-array technique reveal the existence of a discontinuous jump in the U(J) curve precisely at the location of FOT of pristine crystals.

AB - The first order melting transition (FOT) in vortex matter of clean Bi 2Sr2CaCu2O8 crystals, is identified by a discontinuity in the reversible magnetization, which extends to the low temperature (irreversible) regime in the form of a jump in the energy barrier vs. current, U(J), variation. Heavy ion irradiation disorders the vortex lattice, enhances flux pinning, and is believed to suppress the FOT. However, in underdoped samples, detailed measurements of magnetic relaxation by the Hall-array technique reveal the existence of a discontinuous jump in the U(J) curve precisely at the location of FOT of pristine crystals.

KW - Columnar defects

KW - Phase transition

UR - https://www.scopus.com/pages/publications/4344692478

U2 - 10.1016/j.physc.2004.03.208

DO - 10.1016/j.physc.2004.03.208

M3 - Conference article

AN - SCOPUS:4344692478

SN - 0921-4534

VL - 408-410

SP - 547

EP - 548

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 1-4

T2 - Proceedings of the International Conference on Materials

Y2 - 25 May 2003 through 30 May 2003

ER -

Persistence of the intrinsic transition in the vortex matter of disordered BSCCO:2212 crystals

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