Sound velocity and ultrasonic attenuation in RuSr2GdCu 2O8

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The temperature dependent sound velocity and ultrasonic attenuation of the non-superconducting and ferromagnetic superconductor RuSr2GdCu 2O8 (Ru-1212) have been determined through the pulse-echo-overlap ultrasonic technique. The absolute elastic moduli and Debye temperature θD (at ∼80 K) are also determined. A step-like elastic anomaly above 200 K was observed and explained in terms of oxygen ordering similar to that in the related RBa2Cu3O 7-δ system. The acoustic Debye temperature is determined as 528 K and this is higher than those for other high temperature superconducting cuprates, which are between 250 and 500 K.

Original languageEnglish
Pages (from-to)1365-1369
Number of pages5
JournalSuperconductor Science and Technology
Volume18
Issue number10
DOIs
Publication statusPublished - 1 Oct 2005

Fingerprint

Debye temperature
Acoustic wave velocity
acoustic velocity
ultrasonics
Ultrasonics
attenuation
specific heat
cuprates
Superconducting materials
modulus of elasticity
echoes
Elastic moduli
Acoustics
anomalies
Oxygen
Temperature
temperature
acoustics
oxygen
pulses

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Sound velocity and ultrasonic attenuation in RuSr2GdCu 2O8 . / Nor Azah, Nik Jaafar; Halim, S. A.; Abd. Shukor, Roslan.

In: Superconductor Science and Technology, Vol. 18, No. 10, 01.10.2005, p. 1365-1369.

Research output: Contribution to journalArticle

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