Pramana

, Volume 17, Issue 1, pp 33–38 | Cite as

Behaviour of ultrasonic velocities in amorphous Se90Ge10 and Se85Ge15 alloys near their glass transition

  • P E S Kartha
  • V C Padaki
  • S T Lakshmikumar
  • E S R Gopal
Solid State Physics

Abstract

Precise measurements of 10 MHz frequency longitudinal and shear wave velocities are reported in amorphous SeGe alloys near their glass transition temperature Tg. There is a sharp decrease of the velocities near Tg, but the reduction in velocities appears smaller than expected.

Keywords

Chalcogenides glass transition ultrasonic velocities 

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Copyright information

© the Indian Academy of Sciences 1981

Authors and Affiliations

  • P E S Kartha
    • 1
  • V C Padaki
    • 1
  • S T Lakshmikumar
    • 1
  • E S R Gopal
    • 1
  1. 1.Department of PhysicsIndian Institute of ScienceBangaloreIndia

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