Pregled bibliografske jedinice broj: 523709
Effect of thermally activated dynamics on electron spin-lattice relaxation in glasses
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 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 523709 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Effect of thermally activated dynamics on electron spin-lattice relaxation in glasses
Autori
Merunka, Dalibor ; Kveder, Marina ; Rakvin, Boris
Izvornik
Chemical physics letters (0009-2614) 515
(2011), 1/3;
19-22
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
amorphous materials; electron paramagnetic resonance; glassy modes; soft potential model
Sažetak
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.
Izvorni jezik
Engleski
Znanstvena područja
Fizika, Kemija
POVEZANOST RADA
Projekti:
098-0982915-2939 - Molekulska struktura i dinamika sustava s paramagnetskim česticama (Ilakovac-Kveder, Marina, MZOS ) ( CroRIS)
Ustanove:
Institut "Ruđer Bošković", Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
