1.
Phys Rev Lett
; 97(26): 266404, 2006 Dec 31.
Artigo
em Inglês
| MEDLINE
| ID: mdl-17280439
RESUMO
Using photoconduction techniques, we demonstrate that the low-temperature Ohmic conduction of o-TaS3 is not provided by band motion or hopping of single-particle excitations-electrons and holes excited over the Peierls gap. Instead, the low-temperature Ohmic conduction is mostly provided by collective excitations having an activation energy much less than the Peierls gap value and shunting the contribution of electrons and holes responsible for photoconduction.