crystal potential
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scholarly journals A polariton condensate in a photonic crystal potential landscape

2015 ◽  
Vol 17 (2) ◽  
pp. 023001 ◽  
Author(s):  
Karol Winkler ◽  
Julian Fischer ◽  
Anne Schade ◽  
Matthias Amthor ◽  
Robert Dall ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Crystal Potential ◽  
Potential Landscape

Phase transition in a single VO2 nano-crystal: potential femtosecond tunable opto-electronic nano-gating

2014 ◽  
Vol 16 (5) ◽  
Author(s):  
M. Maaza ◽  
A. Simo ◽  
B. M. Itani ◽  
J. B. Kana Kana ◽  
S. El Harthi ◽  
...  
Keyword(s):  
Phase Transition ◽  
Crystal Potential ◽  
Nano Crystal

scholarly journals Investigation of Deuteration Effect on Sound Attenuation in Hydrogen Bonded Ferroelectric Crystals

2011 ◽  
Vol 8 (1) ◽  
pp. 137-141 ◽  
Author(s):  
S. C. Deorani ◽  
P. Singh ◽  
M. S. Yadav
Keyword(s):  
Curie Temperature ◽  
Longitudinal Wave ◽  
Strong Interaction ◽  
Soft Mode ◽  
Ultrasonic Attenuation ◽  
Frequency Range ◽  
Longitudinal Waves ◽  
Crystal Potential ◽  
Frequency Variations ◽  
Curie Temperature Tc

The anomalous ultrasonic attenuation of longitudinal wave propagated in KDP and DKDP have been discussed and calculated near Curie-temperature (Tc) in Para- electric phase in the frequency range 5 to 50 MHz. The attenuation of longitudinal waves is primarily due to a strong interaction with thermally excited phonon in the coupled-soft mode. Temperature and frequency variations of attenuation are discussed. Anharmonicity in the crystal potential is essential to discuss (observe) critical attenuation.

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