Two‐Dimensional Van Der Waals Topological Materials: Preparation, Properties, and Device Applications

G Zhang, H Wu, L Zhang, L Yang, Y Xie, F Guo, H Li… - Small, 2022 - Wiley Online Library
Over the past decade, 2D van der Waals (vdW) topological materials (TMs), including
topological insulators and topological semimetals, which combine atomically flat 2D layers …

Unusual Janus Bi2TeSe2 Topological Insulators Displaying Second-Harmonic Generation, Linear-in-Temperature Resistivity, and Weak Antilocalization

X Zou, X Yuan, L Liang, F Tian, Y Li… - Journal of the …, 2024 - ACS Publications
Well-established knowledge about inversion-symmetric Bi2Te x Se3–x topological
insulators characterizes the promising new-generation quantum device. Noticeably, the …

Quasi-two-dimensional electron gas and weak antilocalization at the interface of heterostructures

X Zhang, Z Pang, C Yin, M Yan, YY Lv, Y Deng… - Physical Review B, 2023 - APS
As a potential system for realizing strong spin-orbit coupling (SOC), 5 dA Ta O 3 perovskite
oxides have recently received extensive attention. This study presents SrTaO 3/KTa O 3 5 d …

Topological surface states in epitaxial natural van der Waals superlattices

S Fragkos, L Baringthon, P Tsipas… - Physical Review …, 2021 - APS
Topological insulators are good candidates for charge to spin conversion with high
efficiency due to their spin-polarized topological surface states (TSSs). In this work, we …

Magnetotransport properties of noncentrosymmetric CaAgBi single crystal

S Sasmal, R Mondal, R Kulkarni… - Journal of Physics …, 2020 - iopscience.iop.org
We report on the single crystal growth and transport properties of a topological semimetal
CaAgBi which crystallizes in the hexagonal ABC-type structure with the non …

Weak antilocalization effect and triply degenerate state in Cu-doped CaAuAs

S Malick, A Ghosh, CK Barman, A Alam, Z Hossain… - Physical Review B, 2022 - APS
The effect of 50% Cu doping at the Au site in the topological Dirac semimetal CaAuAs is
investigated through electronic band structure calculations, electrical resistivity, and …

Probing the topological surface states in superconducting Sn4Au single crystal: a magneto transport study

MM Sharma, P Rani, VPS Awana - Journal of Physics …, 2022 - iopscience.iop.org
Materials exhibiting bulk superconductivity along with magnetoresistance (MR) in their
normal state have emerged as suitable candidates for topological superconductivity. In this …

Weak antilocalization and topological edge states in PdSn4

NK Karn, MM Sharma, VPS Awana - Journal of Applied Physics, 2023 - pubs.aip.org
Here, we report a successful synthesis of single crystals of a topological semimetal (TSM)
candidate, PdSn 4, using a self-flux route. The synthesized crystal is well characterized …

Weak antilocalization effect and multi-channel transport in SnTe quantum well

S de Castro, B Kawata, GRF Lopes, PHO Rappl… - Applied Physics …, 2022 - pubs.aip.org
Magnetoresistance measurements were performed on a 30 nm-thick SnTe quantum well
(QW) grown by molecular beam epitaxy on the BaF 2 substrate in the temperature range of …

Detailed structural and topological analysis of SnBi2Te4 single crystal

A Saxena, NK Karn, MM Sharma… - Journal of Physics and …, 2023 - Elsevier
We report herein the successful synthesis of the topological material SnBi 2 Te 4 in single-
crystal form. Phase purity and unidirectional growth are evident from X-ray diffraction (XRD) …