Published December 10, 1990 | Version v1
Journal article

Ultrasonic attenuation by the vortex lattice of high-Tc superconductors

  • 1. Philips GmbH Forschungslaboratorium Aachen, D-5100 Aachen (Federal Republic of Germany)
  • 2. 2. Physikalisches Institut, Rheinisch-Westfaelische Technische Hochschule Aachen, D-5100 Aachen (Federal Republic of Germany)

Description

Measurements of the transverse sound attenuation and velocity in a ceramic Bi1.6Pb0.4Sr2Ca2Cu3Oy superconductor (Tc=110 K) were performed with and without a magnetic field. Pronounced peaks in the field-induced attenuation and an increase of the velocity at low temperatures were observed. These effects can be attributed to the transition of a rigidly pinned flux-line lattice into a depinned state. A quantitative explanation is presented within the framework of thermally assisted flux flow and without any adjustable parameter

Additional details

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
65
Journal Issue
24
Series
Phys. Rev. Lett.
Journal Page Range
3052-3055
ISSN
0031-9007
CODEN
PRLTA