Experimental Evidence for the Vortex Glass Phase in Untwinned, Proton IrradiatedYBa2Cu3O7−δ

Autor:	W. K. Kwok, J. A. Fendrich, L. M. Paulius, G. W. Crabtree, A. M. Petrean
Rok vydání:	2000
Předmět:	Superconductivity Flux pinning High-temperature superconductivity Materials science Condensed matter physics Magnetoresistance Proton General Physics and Astronomy Order (ring theory) law.invention law Condensed Matter::Superconductivity Type-II superconductor Single crystal
Zdroj:	Physical Review Letters. 84:5852-5855
ISSN:	1079-7114 0031-9007
Popis:	We report on magnetoresistance measurements of the effects of 9 MeV proton irradiation on a clean, untwinned single crystal of ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7\ensuremath{-}\ensuremath{\delta}}$. For the first time, evidence for a vortex glass transition is detected in an untwinned single crystal of ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7\ensuremath{-}\ensuremath{\delta}}$ with induced pointlike disorder, in which the first order vortex melting transition is completely suppressed after proton irradiation. Our results suggest that a sufficiently high pinning disorder is required in order for the vortex glass phase to be observed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5a5748fc8b430327e177dbfc880573ba https://doi.org/10.1103/physrevlett.84.5852 Zobrazit plný text záznamu