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Author Gonzalez, E.M.; Sefrioui, Z.; Maiorov, B.; Osquiguil, E.; Santamar
Title Effects of structural microdomains on the vortex correlation length in a-axis oriented EuBa2Cu3O7 thin films Type Journal Article
Year 2006 Publication Journal of Physics and Chemistry of Solids Abbreviated Journal J Phys Chem Solids
Volume 67 Issue 1-3 Pages 399-402
Keywords A. Superconductors; A. Thin films; B. Epitaxial growth; D. Superconductivity; D. Transport properties; Activation energy; Anisotropy; Epitaxial growth; Europium compounds; Magnetron sputtering; Superconductivity; Thin films; Transport properties; Anisotropic superconductors; Domain boundaries; Structural microdomains; Vortex correlation; Superconducting materials
Abstract We have grown a-axis oriented EuBa2Cu3O7 thin films on SrTiO3 (001) substrates using a magnetron sputtering technique. In these films the CuO2 planes are aligned parallel to the substrates. The film microstructure shows microdomains. The microdomains are grains with a 90
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ISSN 00223697 (ISSN) ISBN Medium
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Notes Export Date: 17 April 2009; Source: Scopus; CODEN: JPCSA; doi: 10.1016/j.jpcs.2005.10.093; Language of Original Document: English; Correspondence Address: Vicent, J.L.; Departamento F Approved no
Call Number BT @ osquigui @ Serial 364
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Author L
Title Dynamic softening of vortex lines in YBa2Cu3O7-? single crystals Type Journal Article
Year 1996 Publication Physica C: Superconductivity and its Applications Abbreviated Journal Phys C Supercond Appl
Volume 260 Issue 3-4 Pages 211-216
Keywords Crystal defects; Magnetic anisotropy; Magnetic couplings; Mathematical models; Single crystals; Transport properties; Vortex flow; Yttrium compounds; Dynamic softening; Flux transformer configuration; Pinning potential; Transport measurements; Vortex correlation; Vortex line; Yttrium barium cuprates; High temperature superconductors
Abstract Transport measurements in the mixed state of oxygen-deficient YBa2Cu3O7-? single crystals using the flux transformer configuration show that the flux liquid changes with increasing anisotropy from strongly correlated to uncorrelated in the field direction. For intermediate coupling, the current inducing loss of vortex correlation has a maximum near the irreversibility temperature. Thus, an effective softening of vortex lines with decreasing temperature is detected. We propose a simple model that accounts for this behavior by including the effects of the pinning potential on the dynamics of vortices.
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ISSN 09214534 (ISSN) ISBN Medium
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Notes Cited By (since 1996): 4; Export Date: 17 April 2009; Source: Scopus; CODEN: PHYCE; Language of Original Document: English; Correspondence Address: Righi, E.F.; Comn. Nac. de Ener. At Approved no
Call Number BT @ osquigui @ Serial 384
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