, Volume 11, Issue 3, pp 245–250 | Cite as

Correlation of acoustic and thermal anomalies in ferroelectric crystals

  • S K Khanna
  • P S Narayanan


The Pippard-Janovec relations are derived for correlating the anomalous elastic coefficient and the anomalous specific heat near the phase transitions of ferroelectric crystals. These relations are verified in the case of ferroelectric triglycine selenate crystal.


Pippard-Janovec relations ultrasonic velocity ferroelectrics triglycine selenate 


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Copyright information

© Indian Academy of Sciences 1978

Authors and Affiliations

  • S K Khanna
    • 1
  • P S Narayanan
    • 1
  1. 1.Department of PhysicsIndian Institute of ScienceBangalore

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