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Effect of thermally activated dynamics on electron spin-lattice relaxation in glasses (CROSBI ID 173678)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Merunka, Dalibor ; Kveder, Marina ; Rakvin, Boris Effect of thermally activated dynamics on electron spin-lattice relaxation in glasses // Chemical physics letters, 515 (2011), 1/3; 19-22. doi: 10.1016/j.cplett.2011.08.088

Podaci o odgovornosti

Merunka, Dalibor ; Kveder, Marina ; Rakvin, Boris

engleski

Effect of thermally activated dynamics on electron spin-lattice relaxation in glasses

Thermally activated dynamics of double-well systems is reexamined as a possible mechanism of electron spin-lattice relaxation (SLR) of paramagnetic centers in glasses. Using the soft- potential model, we have found that this mechanism can explain a nearly quadratic temperature dependence of the SLR rate in various amorphous materials over the temperature range 1-100 K. This mechanism is expected to be operative over this temperature range, as opposed to the phonon- induced tunneling of two-level systems, which is usually considered as the mechanism responsible for this behavior.

amorphous materials; electron paramagnetic resonance; glassy modes; soft potential model

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Podaci o izdanju

515 (1/3)

2011.

19-22

objavljeno

0009-2614

10.1016/j.cplett.2011.08.088

Povezanost rada

Fizika, Kemija

Poveznice
Indeksiranost