Dynamical Phase Transition in a Driven Disordered Vortex Lattice

Journal Article · Sat Nov 30 23:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.77.5114· OSTI ID:404082

Ryu, S; Hellerqvist, M; Doniach, S; Kapitulnik, A; Stroud, D ^[1]

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1. Department of Physics, The Ohio State University, Columbus, Ohio 43210 (United States)

Using Langevin dynamics, we have investigated the dynamics of vortices in a disordered two-dimensional superconductor subjected to a uniform driving current. The results provide direct numerical evidence for a dynamical phase transition between a plastic flow regime and a moving {open_quote}{open_quote}hexatic glass.{close_quote}{close_quote} The simulated current-voltage characteristics are in excellent agreement with recent transport measurements on amorphous Mo{sub 77}Ge{sub 23} thin film superconductors. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Purdue Research Foundation
• DOE Contract Number: FG02-90ER45427
• OSTI ID: 404082
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 25 Vol. 77; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
AMORPHOUS STATE
COMPUTERIZED SIMULATION
CRITICAL CURRENT
DYNAMICS
ELECTRIC CONDUCTIVITY
GERMANIUM ALLOYS
IV CHARACTERISTIC
MOLYBDENUM ALLOYS
NUMERICAL SOLUTION
PHASE TRANSFORMATIONS
SUPERCONDUCTIVITY
THIN FILMS
VORTICES