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Electrical Transport Measurements on TDAE-C_{60} Singl Crystals (CROSBI ID 738800)

Prilog sa skupa u časopisu | izvorni znanstveni rad

Omerzu, Aleš ; Mihailovič, Dragan ; Biškup, Nevenko ; Milat, Ognjen ; Tomić, Silvia. Electrical Transport Measurements on TDAE-C_{60} Singl Crystals // Synthetic metals. 1997. str. 1723-1724-x

Podaci o odgovornosti

Omerzu, Aleš ; Mihailovič, Dragan ; Biškup, Nevenko ; Milat, Ognjen ; Tomić, Silvia.

engleski

Electrical Transport Measurements on TDAE-C_{60} Singl Crystals

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 rotational degrees of freedom ad 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.

fullerenes; charge-transfer salts; electrical conductivity; disorder

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Podaci o prilogu

1723-1724-x.

1997.

nije evidentirano

objavljeno

Podaci o matičnoj publikaciji

Synthetic metals

0379-6779

Podaci o skupu

Nepoznat skup

ostalo

29.02.1904-29.02.2096

Povezanost rada

Fizika

Indeksiranost