Melting of the moving vortex lattice in the presence of disorder

✍ Scribed by A.E. Koshelev; V.M. Vinokur

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 219 KB
• Volume: 235-240
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(94)92548-8

✦ Synopsis

We investigate the melting of the two-dimensional vortex lattice moving in an inhomogeneous environment under the applied current j. We predict the existence of a dynaxnic phase transition at some current j = jt (crystallization current) from the motion of the amorphous configuration at j < jt to the motion of the crystal at j > jr. jt exceeds essentially the critical current j¢ for strongly disordered systems and a-proaches j¢ with the decrease of the degree of disorder. We find that jt diverges as temperature approaches the melting temperature of the undisturbed lattice.