Acoustic Debye temperature and the role of phonons in cuprates and related superconductors

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The Debye temperature of a superconducting material may provide information about the role of phonons in its superconducting mechanism. In this paper, the void-free acoustic Debye temperature, ΘD, of various cuprate high temperature superconductors, estimated using the acoustic technique, was found to be in the range of 250-500 K. The electron-phonon coupling constant was estimated from the transition temperature Tc using the standard BCS theory and also the two-dimensional van Hove scenario with related characteristic temperature. The van Hove scenario seems to explain the high temperature superconductivity in the cuprates better than the standard three-dimensional BCS model. The Debye temperature of these copper oxide-based superconductors is compared with that of the new binary intermetallic MgB2 superconductor which has been reported to be a phonon-mediated superconductor.

Original languageEnglish
Pages (from-to)435-438
Number of pages4
JournalSuperconductor Science and Technology
Volume15
Issue number3
DOIs
Publication statusPublished - Mar 2002

Fingerprint

Debye temperature
Phonons
cuprates
Superconducting materials
phonons
Acoustics
specific heat
trucks
acoustics
BCS theory
copper oxides
high temperature superconductors
intermetallics
Copper oxides
High temperature superconductors
voids
superconductivity
Superconductivity
transition temperature
Superconducting transition temperature

ASJC Scopus subject areas

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

Cite this

Acoustic Debye temperature and the role of phonons in cuprates and related superconductors. / Abd. Shukor, Roslan.

In: Superconductor Science and Technology, Vol. 15, No. 3, 03.2002, p. 435-438.

Research output: Contribution to journalArticle

@article{a13a82d2117c4463ad197d31811497f7,
title = "Acoustic Debye temperature and the role of phonons in cuprates and related superconductors",
abstract = "The Debye temperature of a superconducting material may provide information about the role of phonons in its superconducting mechanism. In this paper, the void-free acoustic Debye temperature, ΘD, of various cuprate high temperature superconductors, estimated using the acoustic technique, was found to be in the range of 250-500 K. The electron-phonon coupling constant was estimated from the transition temperature Tc using the standard BCS theory and also the two-dimensional van Hove scenario with related characteristic temperature. The van Hove scenario seems to explain the high temperature superconductivity in the cuprates better than the standard three-dimensional BCS model. The Debye temperature of these copper oxide-based superconductors is compared with that of the new binary intermetallic MgB2 superconductor which has been reported to be a phonon-mediated superconductor.",
author = "{Abd. Shukor}, Roslan",
year = "2002",
month = "3",
doi = "10.1088/0953-2048/15/3/330",
language = "English",
volume = "15",
pages = "435--438",
journal = "Superconductor Science and Technology",
issn = "0953-2048",
publisher = "IOP Publishing Ltd.",
number = "3",

}

TY - JOUR

T1 - Acoustic Debye temperature and the role of phonons in cuprates and related superconductors

AU - Abd. Shukor, Roslan

PY - 2002/3

Y1 - 2002/3

N2 - The Debye temperature of a superconducting material may provide information about the role of phonons in its superconducting mechanism. In this paper, the void-free acoustic Debye temperature, ΘD, of various cuprate high temperature superconductors, estimated using the acoustic technique, was found to be in the range of 250-500 K. The electron-phonon coupling constant was estimated from the transition temperature Tc using the standard BCS theory and also the two-dimensional van Hove scenario with related characteristic temperature. The van Hove scenario seems to explain the high temperature superconductivity in the cuprates better than the standard three-dimensional BCS model. The Debye temperature of these copper oxide-based superconductors is compared with that of the new binary intermetallic MgB2 superconductor which has been reported to be a phonon-mediated superconductor.

AB - The Debye temperature of a superconducting material may provide information about the role of phonons in its superconducting mechanism. In this paper, the void-free acoustic Debye temperature, ΘD, of various cuprate high temperature superconductors, estimated using the acoustic technique, was found to be in the range of 250-500 K. The electron-phonon coupling constant was estimated from the transition temperature Tc using the standard BCS theory and also the two-dimensional van Hove scenario with related characteristic temperature. The van Hove scenario seems to explain the high temperature superconductivity in the cuprates better than the standard three-dimensional BCS model. The Debye temperature of these copper oxide-based superconductors is compared with that of the new binary intermetallic MgB2 superconductor which has been reported to be a phonon-mediated superconductor.

UR - http://www.scopus.com/inward/record.url?scp=0036500897&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036500897&partnerID=8YFLogxK

U2 - 10.1088/0953-2048/15/3/330

DO - 10.1088/0953-2048/15/3/330

M3 - Article

VL - 15

SP - 435

EP - 438

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

SN - 0953-2048

IS - 3

ER -