Title :
Pre-transition phenomena in TGS crystal under microwave irradiation
fDate :
27 Sept.-1 Oct. 2004
Abstract :
Temperature dependencies of both reflection and transmission coefficients have been measured in frequency range 37-50 GHz. It has been shown that there exist characteristic microwave frequencies associated with only ferroelectric pre-transition temperature region at 37 GHz, with only paraelectric pre-transition temperature region at 40 GHz, and with the whole pre-transition temperature region at 38 GHz and 50 GHz. These frequency features has been attributed to 3-component NMR spectra in TGS.
Keywords :
absorption coefficients; ferroelectric materials; ferroelectric transitions; nuclear magnetic resonance; organic compounds; reflectivity; 37 to 50 GHz; NMR spectra; ferroelectric pretransition temperature; microwave irradiation; paraelectric pretransition temperature; reflection coefficients; transmission coefficients; triglycine sulphate crystal; Crystals; Dielectric measurements; Electromagnetic wave absorption; Ferroelectric materials; Frequency measurement; Microwave frequencies; Nuclear magnetic resonance; Reflection; Temperature dependence; Temperature measurement;
Conference_Titel :
Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on
Print_ISBN :
0-7803-8490-3
DOI :
10.1109/ICIMW.2004.1422103
