<div class="csl-bib-body">
<div class="csl-entry">Le Mardelé, F., Wyzula, J., Mohelský, I., Nasrallah, S., Loh, M., Ben David, S., Toledano, O., Tolj, D., Novak, M., Eguchi, G., Paschen, S., Barisic, N., Chen, J., Kimura, A., Orlita, M., Rukelj, Z., Akrap, A., & Santos-Cottin, D. (2023). Evidence for three-dimensional Dirac conical bands in TlBiSSe by optical and magneto-optical spectroscopy. <i>Physical Review B</i>, <i>107</i>(24), Article L241101. https://doi.org/10.1103/PhysRevB.107.L241101</div>
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dc.identifier.issn
2469-9950
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/191283
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dc.description.abstract
TlBiSSe is a rare realization of a three-dimensional semimetal with a conically dispersing band that has an optical response which is well isolated from other contributions in a broad range of photon energies. We report optical and magneto-optical spectroscopy on this material. When the compound is chemically tuned into a state of the lowest carrier concentration, we find a nearly linear frequency dependence of the optical conductivity below 0.5 eV. Landau level spectroscopy allows us to describe the system with a massive Dirac model, giving a gap 2Δ=32 meV and an in-plane velocity parameter vxy=4.0×105 m/s.
en
dc.language.iso
en
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dc.publisher
AMER PHYSICAL SOC
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dc.relation.ispartof
Physical Review B
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dc.subject
Topological materials
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dc.subject
Dirac-bands
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dc.subject
Dirac semimetal
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dc.subject
magneto-optics
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dc.title
Evidence for three-dimensional Dirac conical bands in TlBiSSe by optical and magneto-optical spectroscopy
