Porous vortex matter

S. S. Banerjee; E. Zeldov; A. Soibel; Y. Myasoedov; M. Rappaport; M. Menghini; Y. Fasano; F. de la Cruz; C. J. van der Beek; M. Konczykowski; T. Tamegai

doi:10.1016/j.physc.2004.03.189

Porous vortex matter

S. S. Banerjee
, E. Zeldov
, A. Soibel
, Y. Myasoedov
, M. Rappaport
, M. Menghini
, Y. Fasano
, F. de la Cruz
, C. J. van der Beek
, M. Konczykowski
, T. Tamegai

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Abstract

Structure, dynamics, and thermodynamic properties of vortex matter in the presence of a low density of columnar defects (CDs) were studied in BSCCO crystals. Magnetic decorations show that when vortices outnumber CDs a heterogeneous vortex matter is formed consisting of two populations of vortices: vortices residing on CDs form a matrix of pinned vortices, whereas the interstitial vortices form ordered crystallites within the `pores' of the matrix. Differential magneto-optical studies reveal that at elevated fields this porous phase melts in two stages, a first-order melting of the crystallites at a temperature considerably higher than the pristine melting, and a continuous melting of the matrix at still higher temperature. At low fields the two transitions occur simultaneously, giving rise to a sharp kink in the observed melting line.

Original language	English
Pages (from-to)	495-498
Number of pages	4
Journal	Physica C. Superconductivity and its Applications
Volume	408-410
Early online date	17 Jun 2004
DOIs	https://doi.org/10.1016/j.physc.2004.03.189
Publication status	Published - Aug 2004

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title = "Porous vortex matter",

abstract = "Structure, dynamics, and thermodynamic properties of vortex matter in the presence of a low density of columnar defects (CDs) were studied in BSCCO crystals. Magnetic decorations show that when vortices outnumber CDs a heterogeneous vortex matter is formed consisting of two populations of vortices: vortices residing on CDs form a matrix of pinned vortices, whereas the interstitial vortices form ordered crystallites within the `pores' of the matrix. Differential magneto-optical studies reveal that at elevated fields this porous phase melts in two stages, a first-order melting of the crystallites at a temperature considerably higher than the pristine melting, and a continuous melting of the matrix at still higher temperature. At low fields the two transitions occur simultaneously, giving rise to a sharp kink in the observed melting line.",

author = "Banerjee, \{S. S.\} and E. Zeldov and A. Soibel and Y. Myasoedov and M. Rappaport and M. Menghini and Y. Fasano and \{de la Cruz\}, F. and \{van der Beek\}, \{C. J.\} and M. Konczykowski and T. Tamegai",

year = "2004",

month = aug,

doi = "10.1016/j.physc.2004.03.189",

language = "English",

volume = "408-410",

pages = "495--498",

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

issn = "0921-4534",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Porous vortex matter

AU - Banerjee, S. S.

AU - Zeldov, E.

AU - Soibel, A.

AU - Myasoedov, Y.

AU - Rappaport, M.

AU - Menghini, M.

AU - Fasano, Y.

AU - de la Cruz, F.

AU - van der Beek, C. J.

AU - Konczykowski, M.

AU - Tamegai, T.

PY - 2004/8

Y1 - 2004/8

N2 - Structure, dynamics, and thermodynamic properties of vortex matter in the presence of a low density of columnar defects (CDs) were studied in BSCCO crystals. Magnetic decorations show that when vortices outnumber CDs a heterogeneous vortex matter is formed consisting of two populations of vortices: vortices residing on CDs form a matrix of pinned vortices, whereas the interstitial vortices form ordered crystallites within the `pores' of the matrix. Differential magneto-optical studies reveal that at elevated fields this porous phase melts in two stages, a first-order melting of the crystallites at a temperature considerably higher than the pristine melting, and a continuous melting of the matrix at still higher temperature. At low fields the two transitions occur simultaneously, giving rise to a sharp kink in the observed melting line.

AB - Structure, dynamics, and thermodynamic properties of vortex matter in the presence of a low density of columnar defects (CDs) were studied in BSCCO crystals. Magnetic decorations show that when vortices outnumber CDs a heterogeneous vortex matter is formed consisting of two populations of vortices: vortices residing on CDs form a matrix of pinned vortices, whereas the interstitial vortices form ordered crystallites within the `pores' of the matrix. Differential magneto-optical studies reveal that at elevated fields this porous phase melts in two stages, a first-order melting of the crystallites at a temperature considerably higher than the pristine melting, and a continuous melting of the matrix at still higher temperature. At low fields the two transitions occur simultaneously, giving rise to a sharp kink in the observed melting line.

U2 - 10.1016/j.physc.2004.03.189

DO - 10.1016/j.physc.2004.03.189

M3 - Article

SN - 0921-4534

VL - 408-410

SP - 495

EP - 498

JO - Physica C. Superconductivity and its Applications

JF - Physica C. Superconductivity and its Applications

ER -

Porous vortex matter

Abstract

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