ESR SPECTRA OF CHARGE CARRIERS IN THE α'- AND β- PHASES OF (BEDT-TTF)2IBr2 SINGLE CRYSTALSстатья
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Дата последнего поиска статьи во внешних источниках: 8 февраля 2015 г.
Аннотация:High-frequency dynamic magnetic properties of quasi-two-dimensional organic
conductors (BEDT-TTF)2IBr2 of α'- and β-phases have been studied by Electron Spin Resonance
(ESR) spectroscopy. The heating of crystals in the α'-phase is accompanied by their phase transition
to the β-phase, so, the Dyson distortion of the ESR line is appeared. Contributions from the crystal
field and symmetry of the system as well as the orbital magnetic moment admixture to the total
magnetic moment of charge carriers have been judged by the comparison of the orientation and
temperature dependencies of the ESR spectra for the α'- and β-phases. Experimental data have
proved localized states of charge carriers either in α'- or β-phases.