Electric Control of 2D Van Hove Singularity in Oxide Ultra‐Thin Films
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Materials"
DOI: 10.1002/adma.202207188
Abstract: Divergent density of states (DOS) can induce extraordinary phenomena such as significant enhancement of superconductivity and unexpected phase transitions. Moreover, van Hove singularities (VHSs) lead to divergent DOS in 2D systems. Despite recent interest in… read more here.
Keywords: control van; electric control; singularity oxide; hove singularity ... See more keywords
Discovery of a weak topological insulating state and van Hove singularity in triclinic RhBi2
Sign Up to like & getrecommendations! Published in 2021 at "Nature Communications"
DOI: 10.1038/s41467-021-22136-w
Abstract: Time reversal symmetric (TRS) invariant topological insulators (TIs) fullfil a paradigmatic role in the field of topological materials, standing at the origin of its development. Apart from TRS protected strong TIs, it was realized early… read more here.
Keywords: state; van hove; hove singularity; rhbi2 ... See more keywords
Van Hove singularity arising from Mexican-hat-shaped inverted bands in the topological insulator Sn-doped Bi1.1Sb0.9Te2S
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.121115
Abstract: The optical properties of Sn-doped Bi1.1Sb0.9Te2S, the most bulk-insulating topological insulator thus far, have been examined at different temperatures over a broad frequency range. No Drude response is detected in the low-frequency range down to… read more here.
Keywords: van hove; 1sb0 9te2s; bi1 1sb0; doped bi1 ... See more keywords
Probing a divergent van Hove singularity of graphene with a Ca 2 N support: A layered electride as a solid-state dopant
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.245303
Abstract: Layered electrides, as typified by ${\mathrm{Ca}}_{2}\mathrm{N}$, are unconventional quasi-two-dimensional metals with low work functions, in which the conduction electrons are localized between the cation layers as well as outside the surface. We have investigated the… read more here.
Keywords: van hove; hove singularity; layered electride; divergent van ... See more keywords
Resistivity in the Vicinity of a van Hove Singularity: Sr_{2}RuO_{4} under Uniaxial Pressure.
Sign Up to like & getrecommendations! Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.120.076602
Abstract: We report the results of a combined study of the normal-state resistivity and superconducting transition temperature T_{c} of the unconventional superconductor Sr_{2}RuO_{4} under uniaxial pressure. There is strong evidence that, as well as driving T_{c}… read more here.
Keywords: resistivity; van hove; hove singularity; uniaxial pressure ... See more keywords
Scattering rate collapse driven by a van Hove singularity in the Dirac semimetal PdTe2
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review Materials"
DOI: 10.1103/physrevmaterials.3.114202
Abstract: We present optical measurements of the transition metal dichalcogenide PdTe2. The reflectivity displays an unusual temperature and energy dependence in the far infrared, which we show can only be explained by a collapse of the… read more here.
Keywords: scattering rate; van hove; pdte2; hove singularity ... See more keywords