Fully anisotropic superconducting transition in ion-irradiated YBa2Cu3O7-delta with a tilted magnetic field
2007 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 75, no 10, 100504- p.Article in journal (Refereed) Published
We consider the superconducting vortex solid-to-liquid transition in heavy ion-irradiated untwinned YBa2Cu3O7-delta single crystals in the case where the magnetic field direction does not coincide with that of the irradiation-induced linear columnar defects. For a certain range of angles, the resistivities measured in three orthogonal spatial directions vanish at the transition as three clearly different powers of reduced temperature. At previously known second-order phase transitions, scaling of physical quantities has either been isotropic or anisotropic in one direction. Thus, our findings yield evidence for a new type of critical behavior with fully anisotropic critical exponents.
Place, publisher, year, edition, pages
2007. Vol. 75, no 10, 100504- p.
high-temperature superconductors, bose-glass-transition, correlated disorder, columnar defects, single-crystals, localization, vortices, phase
Other Physics Topics
IdentifiersURN: urn:nbn:se:kth:diva-16498DOI: 10.1103/PhysRevB.75.100504ISI: 000245329100009ScopusID: 2-s2.0-33947515033OAI: oai:DiVA.org:kth-16498DiVA: diva2:334540
QC 201008112010-08-052010-08-052011-01-25Bibliographically approved