Pregled bibliografske jedinice broj: 399338
Thermal hysteresis in the dielectric response of the charge density wave system o-TaS3
Thermal hysteresis in the dielectric response of the charge density wave system o-TaS3 // Journal of physics. Condensed matter, 20 (2008), 44; 445231-1 doi:10.1088/0953-8984/20/44/445231 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 399338 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Thermal hysteresis in the dielectric response of the charge density wave system o-TaS3
Autori
Starešinić, Damir ; Dominko, Damir ; Lunkenheimer, Peter ; Loidl, Alois
Izvornik
Journal of physics. Condensed matter (0953-8984) 20
(2008), 44;
445231-1
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
hysteresis; dielectric spectroscopy; CDW; TaS3
Sažetak
The low frequency dielectric response of the charge density wave (CDW) system o-TaS3 exhibits a rate-independent hysteresis on temperature cycling in a very wide temperature range below the CDW transition temperature. The ac conductivity, related to the CDW dynamics, is higher on heating than on cooling, while the dc conductivity of residual free carriers is lower, indicating a nontrivial relation between the two of them. Both the amplitude and the relaxation time of the low frequency relaxation process observed in the temperature region of the hysteresis are higher on heating, with similar temperature dependence to the hysteresis in the dc resistivity. The results indicate that the hystereses in ac and dc conductivities are mainly coupled through the free carrier screening of the CDW phase and not through the conversion of free carriers into phase defects.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
Napomena
Art. no. 445231.
POVEZANOST RADA
Projekti:
035-0352827-2842 - Kompleksni modulirani sistemi: nova osnovna stanja, defekti i magnetski efekti (Biljaković, Katica, MZOS ) ( CroRIS)
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
