Evidence of multiple pinning mechanisms in high-Tc superconducting thin films by AC susceptibility measurements

R. Bernard; J. H. Pommereau; C. Gadois; S. Berger; D. G. Crété; J. Briatico; J. P. Contour; O. Durand; J. L. Maurice

doi:10.1016/j.jmmm.2003.11.054

Evidence of multiple pinning mechanisms in high-T_c superconducting thin films by AC susceptibility measurements

R. Bernard
, J. H. Pommereau
, C. Gadois
, S. Berger
, D. G. Crété
, J. Briatico
, J. P. Contour
, O. Durand
, J. L. Maurice

Centre national de la recherche scientifique
CEA
CEA/UVSQ/CNRS
Thales Research & Technology

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

1 Citation (Scopus)

Abstract

Vortex pinning in high-T_c superconductors is usually dominated by intersection of twin boundaries (Physica C, 372-376 (2002) 634). We have grown NdBa₂Cu₃O₇_δ thin films by pulsed laser deposition on (100) SrTiO₃ substrates, which present only one [110] twinning variant (the [11̄0] being completely eliminated), thereby drastically reducing the density of twin boundary intersections. High-resolution AC susceptometry reveals several peaks in x″(T) curve, each one presumably associated with a specific pinning mechanism. For different samples, we correlate x(T) data with microstructure to characterise vortex pinning sources.

Original language	English
Pages (from-to)	150-151
Number of pages	2
Journal	Journal of Magnetism and Magnetic Materials
Volume	272-276
Issue number	I
DOIs	https://doi.org/10.1016/j.jmmm.2003.11.054
Publication status	Published - 1 Jan 2004

Keywords

AC susceptibility
High-temperature superconductors
Twinning
Vortex pinning

Access to Document

10.1016/j.jmmm.2003.11.054

Cite this

@article{d5954b1b97ca49afadf3855f1787a155,

title = "Evidence of multiple pinning mechanisms in high-Tc superconducting thin films by AC susceptibility measurements",

abstract = "Vortex pinning in high-Tc superconductors is usually dominated by intersection of twin boundaries (Physica C, 372-376 (2002) 634). We have grown NdBa2Cu3O7\_δ thin films by pulsed laser deposition on (100) SrTiO3 substrates, which present only one [110] twinning variant (the [1{\=1}0] being completely eliminated), thereby drastically reducing the density of twin boundary intersections. High-resolution AC susceptometry reveals several peaks in x″(T) curve, each one presumably associated with a specific pinning mechanism. For different samples, we correlate x(T) data with microstructure to characterise vortex pinning sources.",

keywords = "AC susceptibility, High-temperature superconductors, Twinning, Vortex pinning",

author = "R. Bernard and Pommereau, \{J. H.\} and C. Gadois and S. Berger and Cr{\'e}t{\'e}, \{D. G.\} and J. Briatico and Contour, \{J. P.\} and O. Durand and Maurice, \{J. L.\}",

year = "2004",

month = jan,

day = "1",

doi = "10.1016/j.jmmm.2003.11.054",

language = "English",

volume = "272-276",

pages = "150--151",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier B.V.",

number = "I",

}

TY - JOUR

T1 - Evidence of multiple pinning mechanisms in high-Tc superconducting thin films by AC susceptibility measurements

AU - Bernard, R.

AU - Pommereau, J. H.

AU - Gadois, C.

AU - Berger, S.

AU - Crété, D. G.

AU - Briatico, J.

AU - Contour, J. P.

AU - Durand, O.

AU - Maurice, J. L.

PY - 2004/1/1

Y1 - 2004/1/1

N2 - Vortex pinning in high-Tc superconductors is usually dominated by intersection of twin boundaries (Physica C, 372-376 (2002) 634). We have grown NdBa2Cu3O7_δ thin films by pulsed laser deposition on (100) SrTiO3 substrates, which present only one [110] twinning variant (the [11̄0] being completely eliminated), thereby drastically reducing the density of twin boundary intersections. High-resolution AC susceptometry reveals several peaks in x″(T) curve, each one presumably associated with a specific pinning mechanism. For different samples, we correlate x(T) data with microstructure to characterise vortex pinning sources.

AB - Vortex pinning in high-Tc superconductors is usually dominated by intersection of twin boundaries (Physica C, 372-376 (2002) 634). We have grown NdBa2Cu3O7_δ thin films by pulsed laser deposition on (100) SrTiO3 substrates, which present only one [110] twinning variant (the [11̄0] being completely eliminated), thereby drastically reducing the density of twin boundary intersections. High-resolution AC susceptometry reveals several peaks in x″(T) curve, each one presumably associated with a specific pinning mechanism. For different samples, we correlate x(T) data with microstructure to characterise vortex pinning sources.

KW - AC susceptibility

KW - High-temperature superconductors

KW - Twinning

KW - Vortex pinning

U2 - 10.1016/j.jmmm.2003.11.054

DO - 10.1016/j.jmmm.2003.11.054

M3 - Article

AN - SCOPUS:23144444295

SN - 0304-8853

VL - 272-276

SP - 150

EP - 151

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - I