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S T Lakshmikumar
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Volume 17 Issue 1 July 1981 pp 25-32 Solid State Physics
Elastic constants of galena down to liquid helium temperatures
V C Padaki S T Lakshmikumar S V Subramanyam E S R Gopal
The elastic constants of single crystal galena have been determined from the measured ultrasonic velocities down to liquid helium temperature. A cryostat incorporating an arrangement to inject the liquid bonding material at low temperature is described. At 5 K, the values of elastic constants are C11=14.90, C12=3.51 and C44=2.92×1010 N/m2.
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Volume 17 Issue 1 July 1981 pp 33-38 Solid State Physics
P E S Kartha V C Padaki S T Lakshmikumar E S R Gopal
Precise measurements of 10 MHz frequency longitudinal and shear wave velocities are reported in amorphous SeGe alloys near their glass transition temperature T
g . There is a sharp decrease of the velocities near Tg , but the reduction in velocities appears smaller than expected.
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Pramana – Journal of Physics
Volume 96, 2022
All articles
Continuous Article Publishing mode
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Pramana – Journal of Physics | News
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Editorial Note on Continuous Article Publication
Posted on July 25, 2019Click here for Editorial Note on CAP Mode
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