ULTRASONIC STUDIES OF SUPERCONDUCTING AND MAGNETIC TRANSITIONS IN LA(2-X)SR(X)CUO4 SINGLE-CRYSTAL

Authors
ZHANG H MCKENNA MJ HUCHO C SARMA BK LEVY M KIMURA T KISHIO K KITAZAWA K
Citation
H. Zhang et al., ULTRASONIC STUDIES OF SUPERCONDUCTING AND MAGNETIC TRANSITIONS IN LA(2-X)SR(X)CUO4 SINGLE-CRYSTAL, Physica. B, Condensed matter, 224(1-4), 1996, pp. 554-557
Citations number
12
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
224
Issue
1-4
Year of publication
1996
Pages
554 - 557
Database
ISI
SICI code
0921-4526(1996)224:1-4<554:USOSAM>2.0.ZU;2-1
Abstract
Ultrasonic attenuation and sound velocity were measured at frequencies ranging form 25 to 305 MHz in a large single crystal of La2-xSrxCuO4 with nominal x of about 0.15. The observed features in attenuation and velocity suggest a relaxation process of magnetic origin at about 27 K, and those at similar to 37.9 K originate in the superconducting tra nsition and a possible structural instability slightly above it.