Ultrasonic and elastic properties of tl- and hg-based cuprate superconductors: A review

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This review is regarding the ultrasonic and elastic properties of Tl- and Hgbased cuprate superconductors. The objectives of this paper were to review the ultrasonic attenuation above the transition temperature Tc, and sound velocity and elastic anomalies at Tc in the Tl- and Hg-based cuprate superconductors. A discontinuity in the sound velocity and elastic moduli is observed near Tc for the Hg-based and other cuprate high temperature superconductor but not the Tl-based superconductor. Ultrasonic attenuation peaks are observed between 200 and 250 K in almost all Tl- and Hg-based cuprate superconductors reported. These peaks were attributed to lattice stepping and oxygen ordering in the Tl-O and Hg-O layers. Some Tl- and Hg-based superconductors show attenuation peak near Tc. However, this is not a common feature for the cuprate superconductors. The ultrasonic attenuation decrease rate below Tc is slower than that expected from a Bardeen-Cooper-Schrieffer (BCS) and pseudo-gapped superconductor.

Original languageEnglish
Pages (from-to)48-57
Number of pages10
JournalPhase Transitions
Volume91
Issue number1
DOIs
Publication statusPublished - 1 Jan 2018

Fingerprint

cuprates
elastic properties
ultrasonics
Ultrasonics
Superconducting materials
Acoustic wave velocity
attenuation
High temperature superconductors
acoustic velocity
Superconducting transition temperature
Elastic moduli
Oxygen
Cuprate superconductors
high temperature superconductors
modulus of elasticity
discontinuity
transition temperature
anomalies
oxygen

Keywords

  • Debye temperature
  • Elastic modulus
  • Internal friction
  • Sound velocity
  • Ultrasonic attenuation

ASJC Scopus subject areas

  • Instrumentation
  • Materials Science(all)

Cite this

Ultrasonic and elastic properties of tl- and hg-based cuprate superconductors : A review. / Abd. Shukor, Roslan.

In: Phase Transitions, Vol. 91, No. 1, 01.01.2018, p. 48-57.

Research output: Contribution to journalArticle

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