Please use this identifier to cite or link to this item:
http://hdl.handle.net/2307/380
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Pompeo, Nicola | - |
dc.contributor.author | Rogai, Raffaella | - |
dc.contributor.author | Augieri, A. | - |
dc.contributor.author | Galluzzi, V. | - |
dc.contributor.author | Celentano, G. | - |
dc.contributor.author | Silva, Enrico | - |
dc.date.accessioned | 2010-07-29T10:38:40Z | - |
dc.date.available | 2010-07-29T10:38:40Z | - |
dc.date.issued | 2009-01-15 | - |
dc.identifier.issn | 0021-8979 | - |
dc.identifier.uri | http://hdl.handle.net/2307/380 | - |
dc.description.abstract | In order to study the vortex pinning determined by artificiallyintroduced pinning centers in the small-vortex displacement regime, wemeasured the microwave surface impedance at 47.7 GHz in the mixed stateof YBa2Cu3O7-delta thin films, where submicrometric BaZrO3 particleshave been incorporated. As a function of the BaZrO3 content, weobserved that the absolute losses slightly decrease up to a BaZrO3content of 5%, and then increase. We found that themagnetic-field-induced losses behave differently in that they are notmonotonic with increasing BaZrO3 concentration. At small concentration(2.5%) the field-induced losses increase, but large reduction in thelosses themselves, by factors up to 3, is observed upon furtherincreasing the BaZrO3 concentration in the target up to 7%. Usingmeasurements of both surface resistance and surface reactance, weestimate vortex pinning-related parameters. We found that BaZrO3inclusions introduce deep and steep pinning wells. In particular, theminimum height of the energy barrier for single vortices is raised. Atlarger BaZrO3 content (5% and 7%) the phenomenon is at its maximum, butit is unclear whether it shows a saturation or not, leaving room forfurther improvements. (C) 2009 American Institute of Physics. [DOI:10.1063/1.3056179] | en |
dc.language.iso | en | en |
dc.publisher | American Institute of Physics | en |
dc.relation.ispartof | Journal of applied physics | en |
dc.subject | THIN-FILMS | en |
dc.subject | SUPERCONDUCTING FILMS | en |
dc.subject | COLUMNAR DEFECTS | en |
dc.subject | SUPERCONDUCTORS | en |
dc.subject | CURRENT DENSITIES | en |
dc.subject | MAGNETIC-FIELD | en |
dc.subject | YBCO FILMS | en |
dc.subject | IMPEDANCE | en |
dc.subject | DISSIPATION | en |
dc.subject | SUBSTRATE | en |
dc.title | Reduction in the field-dependent microwave surface resistance inYBa2Cu3O7-delta with submicrometric BaZrO3 inclusions as a function of BaZrO3 concentration | en |
dc.type | Article | en |
dc.subject.miur | Settori Disciplinari MIUR::Scienze fisiche | en |
dc.subject.miur | Scienze fisiche | - |
dc.subject.isicrui | Categorie ISI-CRUI::Scienze fisiche | en |
dc.subject.isicrui | Scienze fisiche | - |
dc.subject.anagraferoma3 | Scienze fisiche | en |
dc.relation.volumenumber | 105 | en |
dc.relation.pagenumber | 013927-013927-7 | en |
dc.identifier.doi | 10.1063/1.3056179 | - |
dc.relation.issuenumber | 1 | en |
dc.description.romatrecurrent | Dipartimento di Fisica 'Edoardo Amaldi' | * |
item.fulltext | With Fulltext | - |
item.grantfulltext | restricted | - |
item.languageiso639-1 | other | - |
Appears in Collections: | A - Articolo su rivista X_Dipartimento di Fisica 'Edoardo Amaldi' |
Files in This Item:
File | Description | Size | Format | Existing users please Login |
---|---|---|---|---|
JApplPhys_105_013927.pdf | 646.64 kB | Adobe PDF | Request a copy |
Page view(s)
57
checked on Jul 22, 2024
Download(s)
7
checked on Jul 22, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.