Published September 10, 2008
| Version v1
Journal article
Resonance dielectric dispersion of TEA-CoCl2Br2 nanocrystals incorporated into the PMMA matrix
Creators
- 1. Scientific-Technical and Educational Center of Low Temperature Studies, Ivan Franko National University of L'viv, Dragomanova Street 50, L'viv 79005 (Ukraine)
- 2. Chemical Department, Silesian Technical University, Strzody Street 9, Gliwice 44-100 (Poland)
- 3. Institute of Physics, Jan Dlugosz University, Al. Armii Krajowej 13/15, Czestochowa 42201 (Poland)
- 4. Inorganic Chemistry Department, Ivan Franko National University of L'viv, Kyryla and Mefodia Street 6, L'viv 79005 (Ukraine)
Description
The dielectric properties of TEA-CoCl2Br2 nanocrystals incorporated into the polymethylmethacrylate matrix within the frequency range of 3 x 105-2.6 x 109 Hz in the temperature region of 90-300 K were investigated. The considerable difference in the dielectric spectra of the nanocomposite compared to those of the bulk crystal and the pure polymer matrix was observed. The dielectric dispersion of the composite material reveals a resonance type (resonance frequency was found to be near 1.3 GHz) and may be qualitatively explained as the result of piezoelectric resonance on the nanocrystals. The model interpretation of this phenomenon based on the forced-dumped oscillator is presented
Availability note (English)
Available from http://dx.doi.org/10.1088/0953-8984/20/36/365215Additional details
Identifiers
- DOI
- 10.1088/0953-8984/20/36/365215;
- PII
- S0953-8984(08)76998-4;
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 20
- Journal Issue
- 36
- Journal Page Range
- [7 p.]
- ISSN
- 0953-8984
- CODEN
- JCOMEL
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40035489
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BROMINE COMPOUNDS; CHLORINE COMPOUNDS; COBALT COMPOUNDS; COMPOSITE MATERIALS; CRYSTALS; DIELECTRIC MATERIALS; DIELECTRIC PROPERTIES; DISPERSIONS; GHZ RANGE; MATRIX MATERIALS; NANOSTRUCTURES; OSCILLATORS; PIEZOELECTRICITY; PMMA; RESONANCE; SIMULATION; SPECTRA; TEMPERATURE RANGE 0065-0273 K
- Descriptors DEC
- ELECTRICAL PROPERTIES; ELECTRICITY; ELECTRONIC EQUIPMENT; EQUIPMENT; ESTERS; FREQUENCY RANGE; HALOGEN COMPOUNDS; MATERIALS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PHYSICAL PROPERTIES; POLYACRYLATES; POLYMERS; POLYVINYLS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS