Pressure-induced suppression of the spin-gapped insulator phase in BaVS3: an infrared optical study

  • The metal-insulator transition in BaVS3 was studied at ambient pressure and under hydrostatic pressure up to p=26kbar in the energy range of 2.5–500meV. The charge gap determined from the optical reflectivity was enhanced, Δch(p)∕kBTMI(p)≈12. This ratio is independent of pressure, indicating that the character of the transition did not vary along the p−T phase boundary. Above the critical pressure, pcr∼20kbar, metallic spectra were recorded in the whole temperature range, as expected from the shape of the phase diagram.

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Metadaten
Author:István KézsmárkiORCiDGND, G. Mihály, R. Gaál, N. Barišić, H. Berger, L. Forró, C. C. Homes, L. Mihály
URN:urn:nbn:de:bvb:384-opus4-442116
Frontdoor URLhttps://opus.bibliothek.uni-augsburg.de/opus4/44211
ISSN:1098-0121OPAC
ISSN:1550-235XOPAC
Parent Title (English):Physical Review B
Publisher:American Physical Society (APS)
Type:Article
Language:English
Year of first Publication:2005
Publishing Institution:Universität Augsburg
Release Date:2018/11/29
Volume:71
Issue:19
First Page:193103
DOI:https://doi.org/10.1103/physrevb.71.193103
Institutes:Mathematisch-Naturwissenschaftlich-Technische Fakultät
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik / Lehrstuhl für Experimentalphysik V
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):Deutsches Urheberrecht