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RESEARCH PRODUCT
Importance of the crossover-current density for a vortex-glass analysis
Patrick Voss-de HaanGerhard JakobH. Adriansubject
PhysicsCondensed matter physicsField (physics)CrossoverEnergy Engineering and Power TechnologyThermodynamicsCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsCritical regimeVortexExponentLimit (mathematics)Electrical and Electronic EngineeringCurrent densitydescription
Recent experimental results obtained from transport measurements on extremely long measurement bridges [1] have questioned the validity of previous vortex-glass analyses. For electric-field windows restricted to relatively high values of E > 10 -5 V/m the dynamic exponent of the vortex-glass transition z 6, in agreement with theoretical predictions and previous experimental results. However, for extended windows (10 -1 > E > 10 -8 V/m) - while the characteristics of a vortex-glass transition are preserved - all analyses result in z ≥ 9. A combined analysis of the crossover-current density J + 0 and crossover-electric field E + 0 , which limit the critical regime of the vortex-glass transition, allows a conclusive determination of z depending primarily on higher electric-field data.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2000-11-01 | Physica C: Superconductivity |