Vortex matter in NbN/AlN superconducting multilayers

El Hadi Sadki; Zoe Barber; Stephen Lloyd; Mark Blamire; Archie Campbell

doi:10.1016/S0921-4526(02)02241-X

Vortex matter in NbN/AlN superconducting multilayers

El Hadi Sadki, Zoe Barber, Stephen Lloyd, Mark Blamire, Archie Campbell

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

2 Citations (Scopus)

Abstract

The vortex matter (VM) in NbN/AlN multilayers (ML) is investigated by transport measurements in fields applied parallel and perpendicular to the layers. Similarly to HTS, the irreversibility line (IL) shifts to lower temperatures with increasing anisotropy. The resistivity of the higher anisotropy ML scales with the normal component of the field, suggesting the presence of a 2D VM above the IL. The activation energy of the less anisotropic sample scales with the number of the superconducting layers, in agreement with 3D VM. The resistivity and IV characteristic are compared with the Bose-glass theory.

Original language	English
Pages (from-to)	1367-1368
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	329-333
Issue number	II
DOIs	https://doi.org/10.1016/S0921-4526(02)02241-X
Publication status	Published - May 2003
Externally published	Yes

Keywords

Irreversibility line
Multilayer
Vortex matter

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/S0921-4526(02)02241-X

Cite this

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title = "Vortex matter in NbN/AlN superconducting multilayers",

abstract = "The vortex matter (VM) in NbN/AlN multilayers (ML) is investigated by transport measurements in fields applied parallel and perpendicular to the layers. Similarly to HTS, the irreversibility line (IL) shifts to lower temperatures with increasing anisotropy. The resistivity of the higher anisotropy ML scales with the normal component of the field, suggesting the presence of a 2D VM above the IL. The activation energy of the less anisotropic sample scales with the number of the superconducting layers, in agreement with 3D VM. The resistivity and IV characteristic are compared with the Bose-glass theory.",

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author = "Sadki, {El Hadi} and Zoe Barber and Stephen Lloyd and Mark Blamire and Archie Campbell",

year = "2003",

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doi = "10.1016/S0921-4526(02)02241-X",

language = "English",

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pages = "1367--1368",

journal = "Physica B: Condensed Matter",

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TY - JOUR

T1 - Vortex matter in NbN/AlN superconducting multilayers

AU - Sadki, El Hadi

AU - Barber, Zoe

AU - Lloyd, Stephen

AU - Blamire, Mark

AU - Campbell, Archie

PY - 2003/5

Y1 - 2003/5

N2 - The vortex matter (VM) in NbN/AlN multilayers (ML) is investigated by transport measurements in fields applied parallel and perpendicular to the layers. Similarly to HTS, the irreversibility line (IL) shifts to lower temperatures with increasing anisotropy. The resistivity of the higher anisotropy ML scales with the normal component of the field, suggesting the presence of a 2D VM above the IL. The activation energy of the less anisotropic sample scales with the number of the superconducting layers, in agreement with 3D VM. The resistivity and IV characteristic are compared with the Bose-glass theory.

AB - The vortex matter (VM) in NbN/AlN multilayers (ML) is investigated by transport measurements in fields applied parallel and perpendicular to the layers. Similarly to HTS, the irreversibility line (IL) shifts to lower temperatures with increasing anisotropy. The resistivity of the higher anisotropy ML scales with the normal component of the field, suggesting the presence of a 2D VM above the IL. The activation energy of the less anisotropic sample scales with the number of the superconducting layers, in agreement with 3D VM. The resistivity and IV characteristic are compared with the Bose-glass theory.

KW - Irreversibility line

KW - Multilayer

KW - Vortex matter

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U2 - 10.1016/S0921-4526(02)02241-X

DO - 10.1016/S0921-4526(02)02241-X

M3 - Article

AN - SCOPUS:23044461541

SN - 0921-4526

VL - 329-333

SP - 1367

EP - 1368

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - II

ER -

Vortex matter in NbN/AlN superconducting multilayers

Abstract

Keywords

ASJC Scopus subject areas

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