Results 131 to 140 of about 259,006 (285)

Progress in Strain Engineering of 2D‐Integrated Heterostructures for Ultrasensitive Sensors

Advanced Science, EarlyView.
 . ABSTRACT Two‐dimensional (2D) integrated heterostructures have emerged as a cornerstone in the advancement of next‐generation sensor technologies. These heterostructures, which combine materials with different dimensionalities, have led to significant breakthroughs in sensing performance and device integration.
That Buu Ton, Tuan Sang Tran, Duc Khanh Tran, Van Thanh Dau, Dzung Viet Dao   +4 more
wiley   +1 more source

Probing the tunable multi-cone band structure in Bernal bilayer graphene

Nature Communications
Bernal bilayer graphene (BLG) offers a highly flexible platform for tuning the band structure, featuring two distinct regimes. One is a tunable band gap induced by large displacement fields.
Anna M. Seiler, Nils Jacobsen, Martin Statz, Noelia Fernandez, Francesca Falorsi, Kenji Watanabe, Takashi Taniguchi, Zhiyu Dong, Leonid S. Levitov, R. Thomas Weitz   +9 more
doaj   +1 more source

Equivalence between the planar Dirac oscillator and a spin-1/2 fermion embedded in a transverse homogeneous magnetic field

Revista Brasileira de Ensino de Física
It is shown that a spin-1/2 fermion coupled to the axially symmetric electromagnetic vector potential has the same matrix structure as that one for the planar Dirac oscillator.
Antonio Soares de Castro
doaj   +1 more source

Discrete Dirac structures and discrete Lagrange–Dirac dynamical systems in mechanics

Journal of Mathematical Physics
In this paper, we propose the concept of (±)-discrete Dirac structures over a manifold by introducing (±)-discrete two-forms and incorporate discrete constraints via (±)-finite difference approximations. In particular, we develop (±)-discrete induced Dirac structures as discrete analogues of the induced Dirac structure on the cotangent bundle over a ...
Linyu Peng, Hiroaki Yoshimura
openaire   +2 more sources

Quantum Nanomedicine and Quantum Biomaterials

Advanced Science, EarlyView.
In this perspective, we define quantum nanomedicine and quantum biomaterials as a paradigm that harnesses quantum effects in nanomedicine and biomaterials, including quantum superposition, quantum coherence, quantum tunneling, topological quantum effects, and spin polarization, to achieve either spatiotemporally precise modulation of physiological ...
Xinyue Dai, Liang Chen, Wei Feng, Yu Chen   +3 more
wiley   +1 more source

Optimizing Metal‐Perovskite Interfaces: Electronic and Transport Properties of Au‐Bromide Perovskites Contacts

Advanced Electronic Materials, EarlyView.
This study examines metal–perovskite interfaces in 2D (BA)2PbBr4 and (PEA)2PbBr4 using first‐principles and NEGF methods. It compares top‐ and edge‐contact configurations, revealing Schottky barriers in top contacts and ohmic behavior in edge contacts.
Xinbiao Wang, Qi Zhang, Jing Li, Ji‐Sang Park, Yiming Yang, Letian Dou, Euyheon Hwang   +6 more
wiley   +1 more source

Spacetime representation of topological phononics

New Journal of Physics, 2018
Non-conventional topology of elastic waves arises from breaking symmetry of phononic structures either intrinsically through internal resonances or extrinsically via application of external stimuli.
Pierre A Deymier, Keith Runge, Pierre Lucas, Jérôme O Vasseur   +3 more
doaj   +1 more source

Non‐Uniform Space‐Time‐Coding Modulation for Low‐Complexity Diagnostics of Reconfigurable Intelligent Surfaces

Advanced Electronic Materials, EarlyView.
A diagnostic method for reconfigurable intelligent surfaces (RIS) based on non‐uniform space‐time‐coding modulation is presented. Fault localization is achieved via amplitude‐only spectral measurements, eliminating the need for complex signal processing. A one‐to‐one mapping between harmonic components and RIS elements enables accurate detection.
Xiao Qing Chen, Lei Zhang, Yi Ning Zheng, Bing Bing Zhu, Marco Rossi, Giuseppe Castaldi, Shuo Liu, Vincenzo Galdi, Tie Jun Cui   +8 more
wiley   +1 more source

Permuted charged lepton correction in the framework of dirac seesaw

Nuclear Physics B
A Dirac neutrino mass model is proposed, based on an extended group structure of SU(2)L⊗U(1)Y⊗A4⊗Z3⊗Z10 with the Dirac Type I seesaw mechanism. This work explores the impact of parametrization and permutation in the charged lepton diagonalizing matrix ...
Sagar Tirtha Goswami, Subhankar Roy
doaj   +1 more source

Optical Charge Trap Memory Based on Graphene/ZnO Heterostructures for Long‐Term Retention and Adaptive Learning

Advanced Electronic Materials, EarlyView.
A biocompatible graphene/ZnO optical charge trap memory (CTM) is reported with over 54 h retention, enabled by interfacial photodoping. Using transient absorption spectroscopy and electrical analysis, charge transfer quenching is elucidated and reveal that a large energy barrier at the interface is responsible for long‐term memory retention.
Seungmin Shin, Junhyung Kim, Hyungdoh Lee, Yixuan Dou, Jacob T. Heiden, Seung Eun Lee, Jinwoo Song, Lina Quan, Giulia Tagliabue, Min Seok Jang, Himchan Cho   +10 more
wiley   +1 more source