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   Articles with "dirac semimetal" as a keyword



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Widely Tunable Optical and Thermal Properties of Dirac Semimetal Cd3As2

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recommendations! Published in 2020 at "Advanced Optical Materials"

DOI: 10.1002/adom.201901192

Abstract: In this paper, a detailed analysis of the temperature‐dependent optical properties of epitaxially grown cadmium arsenide (Cd3As2), a newly discovered 3D Dirac semimetal is reported. Fermi level tuning—instigated from Pauli‐blocking in the linear Dirac cone—and… read more here.

Keywords: tunable optical; optical thermal; widely tunable; dirac semimetal ... See more keywords
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Terahertz tunable three band narrowband perfect absorber based on Dirac semimetal

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recommendations! Published in 2021 at "Physica E: Low-dimensional Systems and Nanostructures"

DOI: 10.1016/j.physe.2021.114750

Abstract: ABSTRACT A tunable terahertz (THz) narrowband absorber in view of bulk Dirac semimetal (BDS) is designed in this paper. The tunable terahertz absorber's basic unit comprises BDS, intermediate medium, and metal substrate. The BDS has… read more here.

Keywords: dirac semimetal; terahertz tunable; fermi energy; tunable three ... See more keywords
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Tunable bifunctional metamaterial terahertz absorber based on Dirac semimetal and vanadium dioxide

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recommendations! Published in 2021 at "Superlattices and Microstructures"

DOI: 10.1016/j.spmi.2021.106921

Abstract: Abstract We propose herein a tunable bifunctional metamaterial terahertz absorber based on vanadium dioxide and a Dirac semimetal film. Given the phase-transition characteristics of vanadium dioxide, the proposed absorber can be switched between single- and… read more here.

Keywords: bifunctional metamaterial; vanadium dioxide; tunable bifunctional; dirac semimetal ... See more keywords
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Effect of Cu Doping on Structure and Physical Properties in the Antiferromagnetic Dirac Semimetal CaMnBi2.

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recommendations! Published in 2022 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.1c03410

Abstract: The newly discovered AMnBi2 (A = Ca, Sr, Ba, Eu, and Yb) materials composed of two-dimensional Bi square nets provide an excellent platform to investigate the effect of magnetism on topological band structures. Effectively tuning… read more here.

Keywords: camnbi2; semimetal camnbi2; structure; effect ... See more keywords
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Population Inversion and Dirac Fermion Cooling in 3D Dirac Semimetal Cd3As2.

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recommendations! Published in 2022 at "Nano letters"

DOI: 10.1021/acs.nanolett.1c04250

Abstract: Revealing the ultrafast dynamics of three-dimensional (3D) Dirac fermions is critical for both fundamental science and device applications. So far, how the cooling of 3D Dirac fermions differs from that of two-dimensional (2D) and whether… read more here.

Keywords: population inversion; inversion; dirac semimetal; cooling dirac ... See more keywords
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Mid-Infrared Photodetection of Type-II Dirac Semimetal 1T-PtTe2 Grown by Molecular Beam Epitaxy.

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recommendations! Published in 2021 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.1c04598

Abstract: Mid-infrared (MIR) photodetection is of significance in civil and military applications because it shows superiority in absorbing the vibration of various molecules and covering atmospheric transmission windows. Recently, the PtTe2, a typical type-II Dirac semimetal,… read more here.

Keywords: ptte2; type dirac; grown molecular; photodetection ... See more keywords
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Dimensional Crossover and Topological Phase Transition in Dirac Semimetal Na3Bi Films.

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recommendations! Published in 2019 at "ACS nano"

DOI: 10.1021/acsnano.9b04933

Abstract: Three-dimensional (3D) topological Dirac semimetal, when thinned down to 2D few layers, is expected to possess gapped Dirac nodes via quantum confinement effect and concomitantly displays the intriguing quantum spin Hall (QSH) insulator phase. However,… read more here.

Keywords: phase transition; topological phase; dirac semimetal; na3bi films ... See more keywords
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Proximity-induced surface superconductivity in Dirac semimetal Cd3As2

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recommendations! Published in 2019 at "Nature Communications"

DOI: 10.1038/s41467-019-10233-w

Abstract: Cd3As2 is a three-dimensional Dirac semimetal with separated Dirac points in momentum space. In spite of extensive transport and spectroscopic studies on its exotic properties, the evidence of superconductivity in its surface states remains elusive.… read more here.

Keywords: proximity induced; surface superconductivity; dirac semimetal; superconductivity ... See more keywords
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Evidence for Layered Quantized Transport in Dirac Semimetal ZrTe5

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recommendations! Published in 2018 at "Scientific Reports"

DOI: 10.1038/s41598-018-23011-3

Abstract: ZrTe5 is an important semiconductor thermoelectric material and a candidate topological insulator. Here we report the observation of Shubnikov-de Hass (SdH) oscillations accompanied by quantized Hall resistance in bulk ZrTe5 crystal, with a mobility of… read more here.

Keywords: evidence layered; transport dirac; quantized transport; layered quantized ... See more keywords
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Semi-quantized Spin Pumping and Spin-Orbit Torques in Topological Dirac Semimetals

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recommendations! Published in 2019 at "Scientific Reports"

DOI: 10.1038/s41598-019-55802-7

Abstract: We study the time-development processes of spin and charge transport phenomena in a topological Dirac semimetal attached to a ferromagnetic insulator with a precessing magnetization. Compared to conventional normal metals, topological Dirac semimetals manifest a… read more here.

Keywords: semi quantized; spin; dirac semimetals; dirac semimetal ... See more keywords
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Tungsten boride: a 2D multiple Dirac semimetal for the hydrogen evolution reaction

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recommendations! Published in 2019 at "Journal of Materials Chemistry C"

DOI: 10.1039/c9tc01862j

Abstract: Theoretical results demonstrate that WB4 can achieve good HER performance characterized by the general linear relationship between the catalytic activity and d-band centre. read more here.

Keywords: multiple dirac; hydrogen evolution; semimetal hydrogen; dirac semimetal ... See more keywords