Inter- and intraplane softening of the vortex structure in Bi2.1Sr1.9Ca0.9Cu2O8+δ: a two-step transition


Journal Article

High Q mechanical oscillator and AC susceptibility techniques have been used to study vortex dynamics in high quality single crystals of Bi2.1Sr1.9Ca0.9Cu2O8+δ over a wide range of magnetic fields and different relative orientations between the magnetic field and the crystalline c-axis. Our results confirm the existence of two transitions in the vortex response. We show that the transition at lower temperatures is associated to currents flowing across the Cu-O planes and the other one to currents in the planes. This means that the reversible region of the phase diagram is reached in two steps when increasing temperature. © 1991.

Full Text

Duke Authors

Cited Authors

  • Yazyi, J; Arribére, A; Durán, C; de la Cruz, F; Mitzi, DB; Kapitulnik, A

Published Date

  • December 15, 1991

Published In

Volume / Issue

  • 184 / 4-6

Start / End Page

  • 254 - 258

International Standard Serial Number (ISSN)

  • 0921-4534

Digital Object Identifier (DOI)

  • 10.1016/0921-4534(91)90390-K

Citation Source

  • Scopus