Pregled bibliografske jedinice broj: 1032709
Electrical Conductivity in Dynamically Orientationally Disordered Systems: ac and dc Measurements in Ferromagnetic Single Crystals of TDAE-C60
Electrical Conductivity in Dynamically Orientationally Disordered Systems: ac and dc Measurements in Ferromagnetic Single Crystals of TDAE-C60 // Physical Review Letters, 77 (1996), 10; 2045-2048 doi:10.1103/physrevlett.77.2045 (međunarodna recenzija, članak, znanstveni)
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Naslov
Electrical Conductivity in Dynamically Orientationally Disordered Systems: ac and dc Measurements in Ferromagnetic Single Crystals of TDAE-C60
Autori
Omerzu, A. ; Mihailovic, D. ; Tomic, S. ; Milat, O. ; Biskup, N.
Izvornik
Physical Review Letters (0031-9007) 77
(1996), 10;
2045-2048
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
FULLERENE ; RBC60
Sažetak
In spite of a metallic C-60 molecular ground state, electrical conductivity measurements performed on single crystals of ferromagnetic TDAE-C-60 fail to show evidence of metallic behavior. Instead, the material appears to be an insulter exhibiting conductivity of the form sigma(omega, T) = sigma(dc)(T) + sigma(ac) (omega). Phonon-assisted activated polaronic hopping and interbuckyball tunneling, respectively, are proposed as the mechanisms for the two processes. The transition from a dynamically disordered state (rotating buckyballs) to a quasiordered state (frozen buckyballs) is clearly visible as a change in activation energy in the conductivity at T-0 = 150 K.
Izvorni jezik
Engleski
Znanstvena područja
Fizika, Interdisciplinarne prirodne znanosti
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
- MEDLINE
