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Scattering-dominated high-temperature phase of 1T−TiSe2 : An optical conductivity study
Physical Review B, 94 (2016), 7; 075105. https://doi.org/10.1103/PhysRevB.94.075105
Velebit, Kristijan; Popčević, Petar; Batistić, Ivo; Eichler, M.; Berger, H.; Forró, L.; Dressel, M.; Barišić, Neven; Tutiš, Eduard

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Velebit, K., Popčević, P., Batistić, I., Eichler, M., Berger, H., Forró, L. ... Tutiš, E. (2016). Scattering-dominated high-temperature phase of 1T−TiSe2 : An optical conductivity study. Physical Review B, 94. (7). doi: 10.1103/PhysRevB.94.075105

Velebit, Kristijan, et al. "Scattering-dominated high-temperature phase of 1T−TiSe2 : An optical conductivity study." Physical Review B, vol. 94, br. 7, 2016. https://doi.org/10.1103/PhysRevB.94.075105

Velebit, Kristijan, Petar Popčević, Ivo Batistić, M. Eichler, H. Berger, L. Forró, M. Dressel, Neven Barišić i Eduard Tutiš. "Scattering-dominated high-temperature phase of 1T−TiSe2 : An optical conductivity study." Physical Review B 94, br. 7 (2016). https://doi.org/10.1103/PhysRevB.94.075105

Velebit, K., et al. (2016) 'Scattering-dominated high-temperature phase of 1T−TiSe2 : An optical conductivity study', Physical Review B, 94(7). doi: 10.1103/PhysRevB.94.075105

Velebit K, Popčević P, Batistić I, Eichler M, Berger H, Forró L, i sur.. Scattering-dominated high-temperature phase of 1T−TiSe2 : An optical conductivity study. Physical Review B [Internet]. 2016. [pristupljeno 16.04.2024.];94(7). doi: 10.1103/PhysRevB.94.075105

K. Velebit, et al., "Scattering-dominated high-temperature phase of 1T−TiSe2 : An optical conductivity study", Physical Review B, vol. 94, br. 7, 2016. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:217:154374. [Citirano: 16.04.2024.]

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Naslov (engleski)Scattering-dominated high-temperature phase of 1T−TiSe2 : An optical conductivity study
AutorKristijan Velebit
AutorPetar Popčević
MBZ: 299710
AutorIvo Batistić
MBZ: 62363
AutorM. Eichler
AutorH. Berger
AutorL. Forró
AutorM. Dressel
AutorNeven Barišić
MBZ: 276012
AutorEduard Tutiš
MBZ: 18035
Autorova ustanovaSveučilište u Zagrebu
Prirodoslovno-matematički fakultet
(Fizički odsjek)
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Fizika
Sažetak (engleski)
The controversy regarding the precise nature of the high-temperature phase of 1 T − TiS e 2 lasts for decades. It has intensified in recent times when new evidence for the excitonic origin of the low-temperature charge-density wave state started to unveil. Here we address the problem of the high- temperature phase through precise measurements and detailed analysis of the optical response of 1 T − TiS e 2 single crystals. The separate responses of electron and hole subsystems are identified and followed in temperature. We show that neither semiconductor nor semimetal pictures can be applied in their generic forms as the scattering for both types of carriers is in the vicinity of the Ioffe-Regel limit with decay rates being comparable to or larger than the offsets of band extrema. The nonmetallic temperature dependence of transport properties comes from the anomalous temperature dependence of scattering rates. Near the transition temperature the heavy electrons and the light holes contribute equally to the conductivity ; this surprising coincidence is regarded as the consequence of dominant intervalley scattering that precedes the transition. The low-frequency peak in the optical spectra is identified and attributed to the critical softening of the L -point collective mode.
Ključne riječi (engleski)
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran - međunarodna recenzija
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaPhysical Review B
Brojčani podacivol. 94, br. 7, 075105
p-ISSN2469-9950
e-ISSN2469-9969
DOIhttps://doi.org/10.1103/PhysRevB.94.075105
URN:NBNurn:nbn:hr:217:154374
Datum objave publikacije2016
URL dokumentahttps://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.075105
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Zaštićeno autorskim pravom.
Javna napomena© 2016 American Physical Society. Received 5 May 2016; revised manuscript received 12 July 2016; published 3 August 2016.
Datum i vrijeme pohrane2020-02-23 19:05:43