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Frequency and temperature dependent attenuation constant in Barium Titanate

Authors:

UC Naithani ,

Theoretical Physics Division, H.N.B. Garhwal University Campus Pauri Pauri (Garhwal), 246001 (U.P.), India., IN
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DS Lingwal,

Theoretical Physics Division, H.N.B. Garhwal University Campus Pauri Pauri (Garhwal), 246001 (U.P.), India., IN
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Ashok Kumar,

Theoretical Physics Division, H.N.B. Garhwal University Campus Pauri Pauri (Garhwal), 246001 (U.P.), India., IN
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SC Deorani,

Theoretical Physics Division, H.N.B. Garhwal University Campus Pauri Pauri (Garhwal), 246001 (U.P.), India., IN
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BS Semwal

Theoretical Physics Division, H.N.B. Garhwal University Campus Pauri Pauri (Garhwal), 246001 (U.P.), India., IN
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Abstract

The anomalous ultrasonic attenuation αc of longitudinal waves propagating along (100) direction in Barium Titanate single crystal has been analyzed above the phase transition temperature in the frequency range 4-10 MHz in the paraelectric phase. Critical attenuation varies as ω and ω2 if third - and fourth - order anharmonic interactions considered respectively. Frequency and temperature variations of attenuation are discussed.

doi:10.4038/sljp.v1i0.172

Sri Lankan Journal of Physics, Vol.1 (2000) 81-88

Keywords: Article has no keywords 
DOI: 10.4038/sljp.v1i0.172
Volume: 1
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Published on 17 Dec 2000.
Peer Reviewed

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