Low-frequency dielectric properties of yttrium formate crystallohydrate upon heating after quenching to −60°C
| Autor: | N. D. Gavrilova, A. A. Davydova, A. M. Lotonov |
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| Rok vydání: | 2012 |
| Předmět: |
Quenching
Materials science Hydrogen bond Relaxation (NMR) Analytical chemistry Physics::Optics General Physics and Astronomy chemistry.chemical_element Dielectric Yttrium Crystal structure Conductivity Condensed Matter::Materials Science chemistry.chemical_compound Nuclear magnetic resonance chemistry Formate |
| Zdroj: | Moscow University Physics Bulletin. 67:81-84 |
| ISSN: | 1934-8460 0027-1349 |
| DOI: | 10.3103/s0027134912010043 |
| Popis: | The specific features of the dielectric characteristics of yttrium formate crystallohydrate are studied. Its frequency dependences of dielectric permittivity and conductivity are obtained and analyzed in the 10−1–106 Hz range. Anomalies in the narrow temperature intervals of the dielectric properties of yttrium formate crystallohydrate are noted. The activation energies of relaxation processes are calculated from the experimental data. It is assumed that such anomalies are caused by changes in the dynamics of protons that participate in hydrogen bonds in the crystal structure. |
| Databáze: | OpenAIRE |
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