One-dimensional flat bands and Dirac cones in narrow zigzag dice lattice ribbons

L Hao - Materials Science and Engineering: B, 2023 - Elsevier
We show that four narrow zigzag dice lattice ribbons, which have the minimal widths among
their separate categories, constitute a unique collection of systems to study physics related …

Dual‐Gate GaAs‐Nanowire FET for Room Temperature Charge‐Qubit Operation: A NEGF Approach

B Nag Chowdhury… - Advanced Quantum …, 2023 - Wiley Online Library
The performance of dual‐gate GaAs‐nanowire field‐effect‐transistor (FET) is investigated as
a charge‐qubit device operating at room temperature. In compatibility with the state‐of‐the …

Zigzag dice lattice ribbons: Distinct edge morphologies and structure-spectrum correspondences

L Hao - Physical Review Materials, 2022 - APS
Ribbons of two-dimensional lattices have properties depending sensitively on the
morphology of the two edges. For regular ribbons with two parallel straight edges, the atomic …

Valley-contrasting interband transitions and excitons in symmetrically biased dice model

L Hao - Physical Review B, 2021 - APS
We study the exciton states in the symmetrically biased dice model, the electronic structures
of which have an isolated flat band between two dispersive bands. At 1/3 or 2/3 filling, the …

Nonequilibrium VLS-grown stable ST12-Ge thin film on Si substrate: a study on strain-induced band engineering

S Mandal, B Nag Chowdhury, A Tiwari… - Journal of Materials …, 2023 - Springer
The current work describes a novel method of growing thin films of stable crystalline ST12-
Ge, a high pressure polymorph of Ge, on Si substrate by a nonequilibrium VLS technique …

Development of substrate engineered Si-< 111>/[100] Patterned Features by anisotropic wet etching with Pt/Pt3Si mask

S Mandal, C Das, S Sikdar, BN Chowdhury… - Materials Chemistry and …, 2022 - Elsevier
In the current article, a substrate engineered patterned array of square-shaped features of
size 1.5 μm× 1.5 μm comprising of< 111>/[100]-planes of p-Si substrate has been developed …

Design aspects of dual gate GaAs nanowire FET for room temperature charge qubit operation: A study on diameter and gate engineering

N Paul, BN Chowdhury, S Chattopadhyay - arxiv preprint arxiv …, 2023 - arxiv.org
The current work explores a geometrically engineered dual gate GaAs nanowire FET with
state of the art miniaturized dimensions for high performance charge qubit operation at room …

Curling behavior of free-standing nanofilms driven by surface stress: core–shell model

J Li, X Lei, J Ding, Z Gao, H Wang - The European Physical Journal …, 2022 - epjap.epj.org
A continuum theoretical model for describing curling behavior of free-standing nanofilms
was given in this paper. Surface stress, surface elasticity (surface Young's modulus), surface …

Analytical Modeling of Resonant Tunneling Transport in a Voltage-Induced Double Quantum Dot Channel Nanowire Fet for Multi-Threshold Current Levels

N Paul, S Chattopadhyay - Available at SSRN 4926769 - papers.ssrn.com
The article deals with the modeling of gate voltage controlled resonant tunneling transport in
a CMOS compatible double quantum dot channel nanowire FET. The appropriate applied …

[PDF][PDF] Studying the impact of dimensional engineering of voltage tunable double quantum dots in a dual gate GaAs nanowire FET

N Paul, BN Chowdhury, S Chattopadhyay - researchgate.net
The current work explores the geometrical engineering of a state-of-the-art miniaturized
dualgate GaAs nanowire FET for high performance charge qubit operation at room …