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Pramana

, Volume 30, Issue 5, pp 419–421 | Cite as

Specific heat of YBa2Cu3O7−x from 4.2 to 60 K

  • N Sankar
  • V Sankaranarayanan
  • R Srinivasan
  • G Rangarajan
  • G V Subba Rao
Condensed Matter Physics

Abstract

The specific heat of superconducting oxide compound, YBa2Cu3O7 −x , is studied using a quasi-adiabatic calorimeter from 4.2 to 60 K. The analysis of the specific heat data below 15 K gives a value of 17 mJ/mole K2 for the electronic heat capacity coefficient. The value ofθ D(0) is determined to be 397±8 K. The variation ofθ D with temperature was calculated in the temperature range 4.2 to 60 K.

Keywords

High temperature superconductors Y-Ba-Cu-O system specific heat 

PACS Nos

74.70 72.15 

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Copyright information

© Indian Academy of Sciences 1988

Authors and Affiliations

  • N Sankar
    • 1
    • 2
  • V Sankaranarayanan
    • 1
  • R Srinivasan
    • 1
  • G Rangarajan
    • 1
  • G V Subba Rao
    • 1
    • 3
  1. 1.Department of PhysicsIndian Institute of TechnologyMadrasIndia
  2. 2.Systems Engineering DivisionNational Aeronautical LaboratoryBangaloreIndia
  3. 3.Materials Science Research CentreIndian Institute of TechnologyMadrasIndia

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