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Evidence of a Bose-glass transition in superconducting YBa2Cu3O7 single crystals with columnar defects

Jiang, W. and Yeh, N.-C. and Reed, D. S. and Kriplani, U. and Beam, D. A. and Konczykowski, M. and Tombrello, T. A. and Holtzberg, F. (1994) Evidence of a Bose-glass transition in superconducting YBa2Cu3O7 single crystals with columnar defects. Physical Review Letters, 72 (4). pp. 550-553. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:JIAprl94

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Abstract

Experimental evidence of a Bose-glass transition in the vortex state of YBa2Cu3O7 single crystals with columnar defects along the c axis is manifested by the universal critical exponents ν⊥, ν∥ (≡ζν⊥), and z’ derived from the (d’+1)-dimension critical scaling of the frequency-dependent ac resistivity from 102 to 2.5×106 Hz. The Bose-glass transition temperature (TBG) is found to decrease with the increasing angle (θ) between the applied magnetic field and the c axis. The finding that ζ=ν∥/ν⊥=1.1±0.1<d’=2 suggests an incompressible Bose glass at temperatures below TBG.


Item Type:Article
Additional Information:©1994 The American Physical Society. Received 20 August 1993. This work is jointly supported by ONR Grant No. N00014-91-5-1556, the David and Lucile Packard Foundation, NASA/OACT, and NSF Grant No. DMR90-11230. The 0.9 GeV Pb ion irradiation was performed at Grand Accelerateur National d'Ions Lourds (GANIL) in Caen, France. We thank Nils Asplund, A. P. Rice, and Amit Mehra for technical assistance.
Subject Keywords:BA-CU-O; LOCALIZATION; DISORDER
Record Number:CaltechAUTHORS:JIAprl94
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:JIAprl94
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.72.550
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4345
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:19 Aug 2006
Last Modified:26 Dec 2012 08:58

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