prikaz prve stranice dokumenta Scattering-dominated high-temperature phase of 1T−TiSe2 : An optical conductivity study
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Scientific paper - Original scientific paper
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, no. 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 and Eduard Tutiš. "Scattering-dominated high-temperature phase of 1T−TiSe2 : An optical conductivity study." Physical Review B 94, no. 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, and sur.. Scattering-dominated high-temperature phase of 1T−TiSe2 : An optical conductivity study. Physical Review B [Internet]. 2016 [cited 2024 December 23];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, no. 7, 2016. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:154374. [Accessed: 23 December 2024]

Metadata
Title (english)Scattering-dominated high-temperature phase of 1T−TiSe2 : An optical conductivity study
AuthorKristijan Velebit
AuthorPetar Popčević
MBZ: 299710
AuthorIvo Batistić
MBZ: 62363
AuthorM. Eichler
AuthorH. Berger
AuthorL. Forró
AuthorM. Dressel
AuthorNeven Barišić
MBZ: 276012
AuthorEduard Tutiš
MBZ: 18035
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
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.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review B
Numberingvol. 94, no. 7, 075105
p-ISSN2469-9950
e-ISSN2469-9969
DOIhttps://doi.org/10.1103/PhysRevB.94.075105
URN:NBNurn:nbn:hr:217:154374
Publication2016
Document URLhttps://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.075105
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public note© 2016 American Physical Society. Received 5 May 2016; revised manuscript received 12 July 2016; published 3 August 2016.
Created on2020-02-23 19:05:43