Nanomosaic of Topological Dirac States on the Surface of Pb5Bi24Se41 Observed by Nano-ARPES.
Sign Up to like & getrecommendations! Published in 2019 at "Nano letters"
DOI: 10.1021/acs.nanolett.9b00875
Abstract: We have performed scanning angle-resolved photoemission spectroscopy with a nanometer-sized beam spot (nano-ARPES) on the cleaved surface of Pb5Bi24Se41, which is a member of the (PbSe)5(Bi2Se3)3 m homologous series (PSBS) with m = 4 consisting… read more here.
Keywords: dirac states; nano arpes; nanomosaic topological; topological dirac ... See more keywords
Narrowband, Angle-Tunable, Helicity-Dependent Terahertz Emission from Nanowires of the Topological Dirac Semimetal Cd3As2
Sign Up to like & getrecommendations! Published in 2023 at "ACS Photonics"
DOI: 10.1021/acsphotonics.3c00068
Abstract: All-optical control of terahertz pulses is essential for the development of optoelectronic devices for next-generation quantum technologies. Despite substantial research in THz generation methods, polarization control remains difficult. Here, we demonstrate that by exploiting band… read more here.
Keywords: helicity dependent; cd3as2; emission; topological dirac ... See more keywords
Semi-quantized Spin Pumping and Spin-Orbit Torques in Topological Dirac Semimetals
Sign Up to like & getrecommendations! 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
Positive longitudinal spin magnetoconductivity in Z2 topological Dirac semimetals
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.235105
Abstract: Recently, a class of Dirac semimetals, such as \textrm{Na}$_{\mathrm{3}}% $\textrm{Bi} and \textrm{Cd}$_{\mathrm{2}}$\textrm{As}$_{\mathrm{3}}$, are discovered to carry $\mathbb{Z}_{2}$ monopole charges. We present an experimental mechanism to realize the $\mathbb{Z}_{2}$ anomaly in regard to the $\mathbb{Z}_{2}$ topological… read more here.
Keywords: spin; dirac; dirac semimetals; topological dirac ... See more keywords
Electronic structure of the Si-containing topological Dirac semimetal CaAl2Si2
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.102.045106
Abstract: There has been an upsurge in the discovery of topological quantum materials, where various topological insulators and semimetals have been theoretically predicted and experimentally observed. However, very few of them contain silicon, the most widely… read more here.
Keywords: mathrm mathrm; dirac semimetal; mathrm; topological dirac ... See more keywords
Revealing topological Dirac fermions at the surface of strained HgTe thin films via Quantum Hall transport spectroscopy
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.245420
Abstract: We demonstrate evidences of electronic transport via topological Dirac surface states in a thin film of strained HgTe. At high perpendicular magnetic fields, we show that the electron transport reaches the quantum Hall regime with… read more here.
Keywords: hall transport; quantum hall; strained hgte; spectroscopy ... See more keywords
Real-space imaging and control of chiral anomaly induced current at room temperature in topological Dirac semimetal
Sign Up to like & getrecommendations! Published in 2022 at "Science Advances"
DOI: 10.1126/sciadv.abq2479
Abstract: Chiral fermions (CFs) in condensed matters, distinguished by right (+) or left (−) handedness, hold a promise for emergent quantum devices. Although a chiral anomaly induced current, Jchiral = J(+) − J(−), occurs in Weyl… read more here.
Keywords: chiral anomaly; control; anomaly induced; topological dirac ... See more keywords