Quantum transport and potential of topological states for thermoelectricity in Bi2Te3 thin films

P Ngabonziza - Nanotechnology, 2022 - iopscience.iop.org
This paper reviews recent developments in quantum transport and it presents current efforts
to explore the contribution of topological insulator boundary states to thermoelectricity in Bi 2 …

Thermoelectric properties of extrinsic phase mixing in chalcogenide bulk nanocomposites

P Rawat, MH Lee, A Kumar, S Thoravat… - Current Applied …, 2024 - Elsevier
In recent years, application of nanostructured thermoelectric materials got a significant
research interest. Earlier nanostructure materials like superlattice or quantum dot are …

Quantum Transport in Topological Surface States of Selectively Grown Bi2Te3 Nanoribbons

D Rosenbach, N Oellers, AR Jalil… - Advanced electronic …, 2020 - Wiley Online Library
Quasi‐1D nanowires of topological insulators are candidate structures in superconductor
hybrid architectures for Majorana fermion based quantum computation schemes. Here …

Magneto-electronic coupling to the anomalous lattice expansion in Bi1. 8Sb0. 2Te3 crystal

PK Ghose, TK Dalui, SK Mahatha, F Diekmann… - Journal of Physics and …, 2023 - Elsevier
Our low-temperature synchrotron diffraction studies reveal an anomalous thermal expansion
below∼ 25 K (T m). Below T m, the Shubnikov-de Haas (SdH) oscillations are evident and …

Role of defects on carrier dynamics and transport mechanism in Bi2Te3 single crystals

S Baral, I Rajput, MK Dasoundhi, D Kumar… - Materials Today …, 2023 - Elsevier
Defects play an important role in determining the type of carriers as well as in tunning the
physical properties of layered materials. In this study, we have demonstrated that by varying …

Vibrational spectra of Pb 2 Bi 2 Te 3, PbBi 2 Te 4, and PbBi 4 Te 7 topological insulators: temperature-dependent Raman and theoretical insights from DFT simulations

P Mal, G Bera, GR Turpu, SK Srivastava… - Physical Chemistry …, 2019 - pubs.rsc.org
Herein, using Raman spectroscopy, we have presented the investigation of a temperature-
dependent frequency shift and the line broadening of phonon modes by inserting the atomic …

Observation of π Berry phase in quantum oscillations of three‐dimensional Fermi surface in topological insulator Bi2Se3

D Kumar, A Lakhani - physica status solidi (RRL)–Rapid …, 2015 - Wiley Online Library
We report the quantum transport studies on Bi2Se3 single crystal with bulk carrier
concentration of∼ 1019 cm–3. The Bi2Se3 crystal exhibits metallic character, and at low …

Observation of multichannel quantum coherent transport and electron-electron interaction in Bi2Te3 single crystal

A Lakhani, D Kumar - Applied Physics Letters, 2019 - pubs.aip.org
The bulk of topological insulators is relatively unexplored, due to the excess contribution of
conduction from native defects. Here, we investigate the bulk conduction in a Bi 2 Te 3 …

Magnetotransport and Berry phase in magnetically doped single crystals

VK Maurya, MM Patidar, A Dhaka, R Rawat… - Physical Review B, 2020 - APS
We report large magnetoresistance (MR) and Shubnikov-de Haas (SdH) oscillations in
single crystals of magnetically (M= Ni and Fe) doped M x Bi 0.97− x Sb 0.03 (x= 0, 0.02) …

Influence of the stacking sequence on layered-chalcogenide properties: first principles investigation of Pb 2 Bi 2 Te 5

W Ma, MC Record, J Tian, P Boulet - Physical Chemistry Chemical …, 2021 - pubs.rsc.org
The Pb2Bi2Te5 compound has been reported in the literature with two stacking sequences–
Te–Pb–Te–Bi–Te–Bi–Te–Pb–Te–and–Te–Bi–Te–Pb–Te–Pb–Te–Bi–Te–labelled in this …