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The ability to tune the Fermi level of semiconductors is at the heart of modern electronics. Here, we demonstrate that persistent photoconductivity (PPC) enables tuning of carrier density, conductivity type, and, consequently, the valley…

The transport statistics of the 1D chain and metallic armchair graphene nanoribbons with hopping disorder are studied, with a focus on understanding the cross-over between the zero-energy critical point and the localized regime at large…

Disordered Systems and Neural Networks · Physics 2022-06-22 Saumitran Kasturirangan , Alex Kamenev , Fiona J. Burnell

Two new methods for investigation of two-dimensional quantum systems, whose Hamiltonians are not amenable to separation of variables, are proposed. 1)The first one - $SUSY-$ separation of variables - is based on the intertwining relations…

High Energy Physics - Theory · Physics 2008-11-26 F. Cannata , M. V. Ioffe , D. N. Nishnianidze

Averaged plasma parameters such as electron distribution function and electron density are determined by characterization of high frequency (2.4 GHz) nitrogen-plasma using both experimental methods, namely optical emission spectroscopy…

Plasma Physics · Physics 2012-02-16 Priyadarshini Rajasekaran , Cornelia Ruhrmann , Nikita Bibinov , Peter Awakowicz

Small numbers of nitrogen dopants dramatically modify the electronic properties of GaAs, generating very large shifts in the conduction-band energies with nonlinear concentration dependence, and impurity-associated spatially-localized…

Mesoscale and Nanoscale Physics · Physics 2017-11-01 R. C. Plantenga , V. R. Kortan , T. Kaizu , Y. Harada , T. Kita , M. E. Flatté , P. M. Koenraad

In this paper, physics-based analytical models using two-dimensional (2D) Poisson equations for surface potential, channel potential, electric field, and drain current in AlN/$\beta$-Ga$_2$O$_3$ high electron mobility transistor (HEMT) is…

Applied Physics · Physics 2021-08-29 R. Singh , T. R. Lenka , D. K. Panda , H. P. T. Nguyen , N. El. I. Boukortt , G. Crupi

The geological systems such as petroleum reservoirs is investigated by the entropy introduced by Tsallis and multiplicative hierarchical cascade model. When non-Gaussianity appears, it is sign of uncertainty and phase transition, which…

Data Analysis, Statistics and Probability · Physics 2019-11-12 Z. Koohi lai , S. Vasheghani Farahani , G. R. Jafari

The excellent mechanical properties of the Ni-based superalloy IN718 mainly result from coherent $\gamma''$ precipitates. Due to a strongly anisotropic lattice misfit between the matrix and the precipitate phase, the particles exhibit…

Materials Science · Physics 2020-02-26 Felix Schleifer , Markus Holzinger , Yueh-Yu Lin , Uwe Glatzel , Michael Fleck

This paper introduces a deep learning-based super-resolution (SR) framework specifically developed for accurately reconstructing high-resolution velocity fields in two-way coupled particle-laden turbulent flows. Leveraging conditional…

Graph alignment, the problem of identifying corresponding nodes across multiple graphs, is fundamental to numerous applications. Most existing unsupervised methods embed node features into latent representations to enable cross-graph…

Machine Learning · Computer Science 2025-09-30 Maysam Behmanesh , Erkan Turan , Maks Ovsjanikov

We parameterize sub-grid scale (SGS) fluxes in sinusoidally forced two-dimensional turbulence on the $\beta$-plane at high Reynolds numbers (Re$\sim$25000) using simple 2-layer Convolutional Neural Networks (CNN) having only…

Fluid Dynamics · Physics 2023-04-12 Kaushik Srinivasan , Mickael D. Chekroun , James C. McWilliams

We report on a theoretical study of the electronic structures of freestanding nanowires made from narrow band gap semiconductors GaSb, InSb and InAs. The nanowires are described by the eight-band k.p Hamiltonians and the band structures are…

Mesoscale and Nanoscale Physics · Physics 2016-12-30 Ning Luo , Gaohua Liao , H. Q. Xu

Pattern discharge is a common mode in dielectric barrier discharge (DBD) and has broad application prospects in various industrial fields, such as material surface treatment, environmental monitoring, and biomedical applications. In this…

Plasma Physics · Physics 2026-01-13 Tian Shuang , Zhang Han , Zhang Xi , Zhang Xuexue , Li Qing , Li Xuecehng , Run Junxia

We consider the vacuum geometry of supersymmetric theories with 4 supercharges, on a flat toroidal geometry. The 2 dimensional vacuum geometry is known to be captured by the $tt^*$ geometry. In the case of 3 dimensions, the parameter space…

High Energy Physics - Theory · Physics 2015-06-18 Sergio Cecotti , Davide Gaiotto , Cumrun Vafa

In this paper, we have built a numerical p-n Si/GaAs heterojunction model using a quantum-mechanical tunneling theory with various quantum tunneling interfacial materials including two-dimensional semiconductors such as hexagonal boron…

Mesoscale and Nanoscale Physics · Physics 2021-10-26 Md Nazmul Hasan , Chenxi Li , Junyu Lai , Jung-Hun Seo

In this paper, we derive a new shallow asymptotic model for the free boundary plasma-vacuum problem governed by the magnetohydrodynamic equation, vital in describing large-scale processes in flows of astrophysical plasma. More precisely, we…

Analysis of PDEs · Mathematics 2020-08-24 Diego Alonso-Orán

One of the key motivations for the development of atomically resolved spectroscopic imaging STM (SI-STM) has been to probe the electronic structure of cuprate high temperature superconductors. In both the d-wave superconducting (dSC) and…

Gallium nitride (GaN) has emerged as an essential semiconductor material for energy-efficient lighting and electronic applications owing to its large direct bandgap of 3.4 eV. Present GaN/AlGaN heterostructures seemingly feature an…

Mesoscale and Nanoscale Physics · Physics 2018-12-20 S. Schmult , S. Wirth , V. V. Solovyev , R. Hentschel , A. Wachowiak , A. Großer , I. V. Kukushkin , T. Mikolajick

There are many systems in which two order parameters compete with each other. Of particular interest are systems in which these order parameters are both unconventional. In this contribution, we examine the representative example of a…

Superconductivity · Physics 2007-05-23 Stephan Haas , Kazumi Maki , Thomas Dahm , Peter Thalmeier

The hypothesis that holes doped into high-Tc cuprate superconductors organize themselves in two-dimensional (2D) array of diagonal stripes is discussed, and, on the basis of this hypothesis, a new microscopic model of superconductivity is…

Superconductivity · Physics 2009-11-10 Boris V. Fine
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