Elastic properties of superconducting and non-superconducting DyBaSrCu3O7-delta

Authors
Jaafar, NAN Abd-Shukor, R
Citation
Nan. Jaafar et R. Abd-shukor, Elastic properties of superconducting and non-superconducting DyBaSrCu3O7-delta, PHYS LETT A, 288(2), 2001, pp. 105-110
Citations number
19
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS A
ISSN journal
03759601 → ACNP
Volume
288
Issue
2
Year of publication
2001
Pages
105 - 110
Database
ISI
SICI code
0375-9601(20010917)288:2<105:EPOSAN>2.0.ZU;2-Y
Abstract
Ultrasonic longitudinal and shear wave velocities were measured for superco nducting and non-superconducting DyBaSr Cu3O7-delta (Dy-1113) at 10 MHz bet ween 80 and 270 K. The superconducting sample exhibits a step-like elastic anomaly between 190 and 230 K. No elastic anomaly was observed in the non-s uperconducting Dy-1113. The anomaly observed in the superconducting sample is attributed to structural phase transition caused by oxygen orderings. (C ) 2001 Elsevier Science B.V. All rights reserved.