Results 91 to 100 of about 142,691 (284)

Quantum oscillations from Fermi arc surface states in Cd_{3}As_{2} submicron wires

Physical Review Research, 2022
Topological materials such as topological insulators and Weyl/Dirac semimetals possess topologically protected surface states giving birth to various unique phenomena and functionaries.
Yu Miyazaki, Tomoyuki Yokouchi, Kiyou Shibata, Yao Chen, Hiroki Arisawa, Teruyasu Mizoguchi, Eiji Saitoh, Yuki Shiomi   +7 more
doaj   +1 more source

2D Nanomaterials Toward Function‐Ready Superlubricity in Advanced Microsystems

Advanced Materials, EarlyView.
A unified framework links structural and transformation superlubricity with microsystem functions and deployment requirements. Mechanisms, device architectures, integration strategies, AI‐guided discovery, and benchmarking protocols are connected to define function‐ready superlubricity in advanced microsystems.
Yushan Geng, Jun Yang, Yong Yang
wiley   +1 more source

Modular forms in the spectral action of Bianchi IX gravitational instantons

Journal of High Energy Physics, 2019
We prove a modularity property for the heat kernel and the Seeley-deWitt coefficients of the heat kernel expansion for the Dirac-Laplacian on the Bianchi IX gravitational instantons.
Wentao Fan, Farzad Fathizadeh, Matilde Marcolli   +2 more
doaj   +1 more source

Entanglement of Dirac bi-spinor states driven by Poincar\'e classes of $\mbox{SU}(2) \otimes \mbox{SU}(2)$ coupling potentials

, 2016
A generalized description of entanglement and quantum correlation properties constraining internal degrees of freedom of Dirac(-like) structures driven by arbitrary Poincar\'e classes of external field potentials is proposed. The role of (pseudo)scalar, (
Bernardini, Alex E., Bittencourt, Victor A. S. V.   +1 more
core   +1 more source

Correlated Charge Transport in an Organic Coulomb Glass

Advanced Materials, EarlyView.
ABSTRACT Advances in the development of organic field‐effect transistors (OFETs), electrically gated organic semiconductors (EGOFETs), and organic electrochemical transistors (OECTs) allow for the operation of these devices at very high charge‐carrier densities, where Coulomb interactions between carriers can be expected to become significant.
Magdalena Sophie Dörfler, Heinz Bässler, Harald Oberhofer, Anna Köhler   +3 more
wiley   +1 more source

The Dirac oscillator, generalised parastatistics and colour Lie superalgebras

Nuclear Physics B
We study the Dirac oscillator in one, two and three spatial dimensions, showing that the corresponding ladder operators realise the Z2×Z2-graded Lie superalgebras pso(3|2), pso(3|4) and osp01(1|2)⊕sl10(1|1).
Phillip S. Isaac, Mitchell Ryan
doaj   +1 more source

Electronic and optical properties of graphene antidot lattices: Comparison of Dirac and tight-binding models

, 2014
The electronic properties of graphene may be changed from semimetallic to semiconducting by introducing perforations (antidots) in a periodic pattern. The properties of such graphene antidot lattices (GALs) have previously been studied using atomistic ...
Brun, S. J., Pedersen, T. G., Thomsen, M. R.   +2 more
core   +1 more source

Dirac Structures and Poisson Homogeneous Spaces

Communications in Mathematical Physics, 1998
LaTex, 28 ...
Liu, Zhang-Ju, Weinstein, Alan, Xu, Ping
openaire   +3 more sources

Surface Passivation of HgTe Nanocrystals Enabling EG/2 Open‐Circuit Voltage and Their Coupling to Dielectric Cavity for Narrow Detection

Advanced Materials, EarlyView.
This article explores how the integration of a thin shell, combined with optimized surface chemistry, enables the design of photodiodes based on short‐wave infrared HgTe nanocrystals. These photodiodes achieve an open‐circuit voltage greater than half the optical bandgap, which drastically reduces dark current. The article also explores the integration
Albin Colle, Clement Gureghian, Dario Mastrippolito, Mariarosa Cavallo, Jiho Roh, Marco Paye, Tommaso Gemo, Diogo Almeida, Adrien Khalili, Yoann Prado, Xavier Lafosse, Sandrine Ithurria, Mathieu G. Silly, Pavel Dudin, James K. Utterback, José Avila, Debora Pierucci, Emmanuel Lhuillier   +17 more
wiley   +1 more source

Integrability and Reduction of Hamiltonian Actions on Dirac Manifolds [PDF]

, 2013
For a Hamiltonian, proper and free action of a Lie group $G$ on a Dirac manifold $(M,L)$, with a regular moment map $\mu:M\to \mathfrak{g}^*$, the manifolds $M/G$, $\mu^{-1}(0)$ and $\mu^{-1}(0)/G$ all have natural induced Dirac structures. If $(M,L)$ is
Fernandes, Olivier Brahic, Rui Loja
core