Experimental perspective on three-dimensional topological semimetals

BQ Lv, T Qian, H Ding - Reviews of Modern Physics, 2021 - APS
Topological semimetals (TSMs) are characterized by bulk band crossings in their electronic
structures, which are expected to give rise to gapless electronic excitations and topological …

3D Dirac semimetal : A review of material properties

I Crassee, R Sankar, WL Lee, A Akrap, M Orlita - Physical Review Materials, 2018 - APS
Cadmium arsenide (Cd 3 As 2), a time-honored and widely explored material in solid-state
physics, has recently attracted considerable attention. This was triggered by a theoretical …

Ultrafast photothermoelectric effect in Dirac semimetallic Cd3As2 revealed by terahertz emission

W Lu, Z Fan, Y Yang, J Ma, J Lai, X Song… - Nature …, 2022 - nature.com
The thermoelectric effects of topological semimetals have attracted tremendous research
interest because many topological semimetals are excellent thermoelectric materials and …

Surface superconductivity in a three-dimensional semimetal at the interface with a gold contact

OO Shvetsov, VD Esin, AV Timonina, NN Kolesnikov… - Physical Review B, 2019 - APS
We experimentally investigate charge transport through a single planar junction between a
Cd 3 As 2 Dirac semimetal and a normal Au lead. For nonsuperconducting bulk Cd 3 As 2 …

Evidence of decoupling of surface and bulk states in Dirac semimetal Cd3As2

W Yu, DX Rademacher, NR Valdez… - …, 2022 - iopscience.iop.org
Dirac semimetals have attracted a great deal of current interests due to their potential
applications in topological quantum computing, low-energy electronic devices, and single …

Interface Superconductivity in a Dirac Semimetal NiTe2

VD Esin, OO Shvetsov, AV Timonina, NN Kolesnikov… - Nanomaterials, 2022 - mdpi.com
We experimentally investigated charge transport through a single planar junction between a
NiTe 2 Dirac semimetal and a normal gold lead. At milli-Kelvin temperatures, we observe …

Dielectric and electronic properties of three-dimensional Luttinger semimetals with a quadratic band touching

S Tchoumakov, W Witczak-Krempa - Physical Review B, 2019 - APS
Due to strong spin-orbit coupling, charge carriers in three-dimensionsal quadratic-band-
touching Luttinger semimetals have nontrivial wave functions characterized by a pseudospin …

Thickness-independent transport in thin (001)-oriented cadmium arsenide films

DA Kealhofer, M Goyal, TN Pardue, S Stemmer - Physical Review B, 2021 - APS
The three-dimensional Dirac semimetal is a parent phase for a variety of topological phases
that can be generated by tuning parameters in material growth or device operation. Notably …

Determination of the crystal field splitting energy in using magnetooptics

G Krizman, T Schumann, S Tchoumakov, BA Assaf… - Physical Review B, 2019 - APS
Symmetry considerations are of extreme importance to the topological properties of crystals.
A crystal field splitting δ yields Dirac nodes near the Brillouin zone center in C d 3 A s 2, but …

Magneto-optical signatures of Volkov-Pankratov states in topological insulators

X Lu, MO Goerbig - Europhysics Letters, 2019 - iopscience.iop.org
In addition to the usual chiral surface states, massive surface states can arise at a smooth
interface between a topological and a trivial bulk insulator. While not subject to topological …