Pregled bibliografske jedinice broj: 1032705
Electrical transport measurements on tdae-c60 single crystals
Electrical transport measurements on tdae-c60 single crystals // Synthetic metals, 85 (1997), 1-3; 1723-1724 doi:10.1016/s0379-6779(97)80409-2 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 1032705 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Electrical transport measurements on tdae-c60 single crystals
Autori
Omerzu, Aleš ; Mihailović, Dragan ; Biskup, N. ; Milat, Ognjen ; Tomić, Silvia
Izvornik
Synthetic metals (0379-6779) 85
(1997), 1-3;
1723-1724
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
fullerenes ; charge-transfer salts ; electrical conductivity ; disorder
Sažetak
DC and AC electrical conductivity measurements on TDAE-C-60 single crystals along different crystallographic axes are presented. The conductivity shows activated behavior between room temperature and 100 K with no reentrant conductivity down to 4 K, indicating an insulating electronic ground state. The activation energy changes from 0.3 eV above 150 K to 0.1 eV below this temperature. This change is accompanied by a change in the AC response. We attribute it to the freezing of the rotational degrees of freedom and consequently reduced randomness in low-temperature phase. AC conductivity may be written in two-component form sigma(DC) (T) sigma(AC) (omega) where frequency-dependent part has exponential dependence sigma(AC) (omega)=B omega(S) typical for disordered systems.
Izvorni jezik
Engleski
Znanstvena područja
Fizika, Interdisciplinarne prirodne znanosti
POVEZANOST RADA
Ustanove:
Institut za fiziku, 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
