Thermally assisted flux flow and melting transition for Mo/Si multilayers

Journal Article · Wed Jan 01 04:00:00 EST 1997 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.55.85· OSTI ID:432524

Fogel, N Y; Cherkasova, V G; Koretzkaya, O A ^[1]; Sidorenko, A S ^[2]

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1. Institute for Low Temperature Physics and Engineering, Kharkov 310164 (Ukraine)
2. Physikalishes Institut, Universitat Karlsruhe, Karlsruhe D-76128 (Germany)

Two-dimensional and three-dimensional vortex-lattice melting is observed for superconducting Mo/Si multilayers. The position of the melting transition on the H-T phase diagram is in reasonable quantitative accordance with the existing theories. Above the melting line another phase transition is found connected with the decoupling in the liquid phase or with transition from hexatic to ordinary liquid. The thermally assisted flux-flow (TAFF) regime of the vortex motion is observed in the fluid phase governed by the plastic barrier characteristic for viscous liquid. The TAFF regime with different activation energy takes place also in a vortex solid phase above the depinning line. {copyright} {ital 1996} {ital The American Physical Society}

• OSTI ID: 432524
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 1 Vol. 55; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
AMORPHOUS STATE
MAGNETIC FLUX
MIXED STATE
MOLYBDENUM
PHASE TRANSFORMATIONS
SILICON
SUPERCONDUCTIVITY
SUPERLATTICES
TEMPERATURE DEPENDENCE