Kamaras, Katalin, Klupp, Gyongyi, Matus, Peter, Ganin, Alexey Y, McLennan, Alec, Rosseinsky, Matthew J ORCID: 0000-0002-1910-2483, Takabayashi, Yasuhiro, McDonald, Martin T and Prassides, Kosmas
(2013)
Mott localization in the correlated superconductor Cs3C60 resulting from
the molecular Jahn-Teller effect.
Journal of Physics: Conference Series, 428 (1).
012002-.
Text
1303.1968v1.pdf - Published version Download (320kB) |
Abstract
Cs3C60 is a correlated superconductor under pressure, but an insulator under ambient conditions. The mechanism causing this insulating behavior is the combination of Mott localization and the dynamic Jahn-Teller effect. We show evidence from infrared spectroscopy for the dynamic Jahn-Teller distortion. The continuous change with temperature of the splitting of infrared lines is typical Jahn-Teller behavior, reflecting the change in population of solid-state conformers. We conclude that the electronic and magnetic solid-state properties of the insulating state are controlled by molecular phenomena. We estimate the time scale of the dynamic Jahn-Teller effect to be above 10^(-11) s and the energy difference between the conformers less than 20 cm-1.
Item Type: | Article |
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Additional Information: | 6 pages, 4 figures, 1 supplementary movie; XXI International Symposium on the Jahn-Teller Effect, Tsukuba, Japan, August 26-31, 2012 |
Uncontrolled Keywords: | cond-mat.str-el, cond-mat.str-el, cond-mat.mtrl-sci |
Depositing User: | Symplectic Admin |
Date Deposited: | 02 Aug 2016 13:46 |
Last Modified: | 19 Jan 2023 07:32 |
DOI: | 10.1088/1742-6596/428/1/012002 |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3002646 |