Bose-glass behavior in Bi[sub 2]Sr[sub 2]Ca[sub 1[minus]x]Y[sub x]Cu[sub 2]O[sub 8] crystals with columnar defects: Experimental evidence for variable-range hopping
- Univ. F. Rabelais, Tours (France). Lab. d'Electrodynamique des Materiaux Avances
Disorder plays a crucial role in the static and dynamic properties of the mixed state of high-[Tc] cuprates. A main feature of the diagram phase is the phase transition separating a high temperature vortex liquid-like state from a low temperature vortex solid-like state. In particular, the nature of the latter depends on the strength and the dimensionality of disorder. In the presence of an unidimensional disorder, Nelson and Vinokur predict a Bose-glass. In this paper, the authors concern themselves with the variable-range vortex hopping transport predicted in a Bose-glass. They report on vortex transport in Bi[sub 2]Sr[sub 2]Ca[sub 1[minus]x]Y[sub x]Cu[sub 2]O[sub 8] crystals irradiated at different doses of heavy ions. They show evidence of a flux-creep resistivity typical of a variable-range vortex hopping mechanism as predicted by Nelson and Vinokur.
- OSTI ID:
- 6333596
- Report Number(s):
- CONF-980291--
- Journal Information:
- International Journal of Modern Physics B, Journal Name: International Journal of Modern Physics B Vol. 12:29-31; ISSN IJPBEV; ISSN 0217-9792
- Country of Publication:
- United States
- Language:
- English
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360206* -- Ceramics
Cermets
& Refractories-- Radiation Effects
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
CHARGED PARTICLES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
HEAVY IONS
IONS
MAGNETIC FLUX
ORDER-DISORDER TRANSFORMATIONS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES