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13C NMR investigations of the ferroelectric phase transition of tris-sarcosine calcium chloride

✍ Scribed by D. Michel; F. Engelke


Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
400 KB
Volume
96
Category
Article
ISSN
0009-2614

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✦ Synopsis


13 C IWR spectra were measured for tris-sarcosine calcium chloride (TSCC) crystals in ths par.xlectric phase (at temperatures of ==300 and 150 K) and in the ferroelectric phase (at temperatures of 119 K) by double-resonance techniques with proton decoupling. The ferrorlastic single crystals were rotated around their three cryst,4lographic axes to dcritc the tensors of magnetic shielding for the different carboxylic carbon atoms. There is no change of the ei~cnwluer and eisenvcctors of the tensors at the phase transition. The results arc consistent with the interpretation of former EPR data.


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