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Fully-processed SiC power metal-oxide-semiconductor field-effect transistors (MOSFETs) emit light during switching of the gate terminal, while both drain and source terminals are grounded. The emitted photons are caused by defect-assisted…

It has been recently predicted theoretically that due to nuclear motion light and heavy hydrogen molecules exposed to strong electric field should exhibit substantially different tunneling ionization rates (O.I. Tolstikhin, H.J. Worner and…

Atomic Physics · Physics 2016-08-24 X. Wang , H. Xu , A. Atia-Tul-Noor , B. T. Hu , D. Kielpinski , R. T. Sang , I. V. Litvinyuk

Designing metal-organic frameworks (MOFs) synthesis protocols is currently largely driven by trial-and-error, since we lack fundamental understanding of the molecular level mechanisms that underlie their self-assembly processes. Previous…

Materials Science · Physics 2025-12-04 Sahar Andarzi Gargari , Emilio Méndez , Rocio Semino

The ACIS front-illuminated CCDs onboard the Chandra X-ray Observatory were damaged in the extreme environment of the Earth's radiation belts, resulting in enhanced charge transfer inefficiency (CTI). This produces a row dependence in gain,…

Astrophysics · Physics 2009-10-31 L. K. Townsley , P. S. Broos , G. P. Garmire , J. A. Nousek

We present a code for modelling the ionization conditions of optically thin astrophysical gas structures. Given the gas hydrogen density, equilibrium temperature, elemental abundances, and the ionizing spectrum, the code solves the…

Astrophysics of Galaxies · Physics 2014-09-04 Christopher W. Churchill , Elizabeth Klimek , Amber Medina , Jacob R. Vander Vliet

Impact ionization in silicon devices has been extensively studied and several models for a quantitative description of the impact ionization coefficients have been proposed. We evaluate those models against gain measurements on Low Gain…

Instrumentation and Detectors · Physics 2023-05-29 Esteban Curras Rivera , Michael Moll

Silicon carbide (SiC) has long been a subject of study for its application in harsh environments. Existing empirical interatomic potentials for 3C-SiC show significant discrepancies in predicting the properties that are crucial in…

Materials Science · Physics 2025-10-09 Ali Hamedani , Andrea E. Sand

Shining light on a mixed ionic-electronic conductor induces variations in both its electronic and ionic behaviors. While optoelectronic processes in semiconductors with negligible ionic conductivities are well understood, the role of mobile…

Chemical Physics · Physics 2025-04-09 Davide Moia , Joachim Maier

Many industries now deploy high-fidelity simulators (digital twins) to represent physical systems, yet their parameters must be calibrated to match the true system. This motivated the construction of simulation-driven parameter estimators,…

Systems and Control · Electrical Eng. & Systems 2026-01-28 Braghadeesh Lakshminarayanan , Margarita A. Guerrero , Cristian R. Rojas

High electronic excitations in radiation of metallic targets with swift heavy ion beams at the coulomb barrier play a dominant role in the damaging processes of some metals. The inelastic thermal spike model was developed to describe tracks…

Instrumentation and Detectors · Physics 2020-03-18 Christelle Stodel , Marcel Toulemonde , Christoph Fransen , Bertrand Jacquot , Emmanuel Clément , Christian Dufour

Ion implantation is a powerful approach for tuning the electrical properties of materials through controlled doping and defect engineering, with applications in thermoelectrics and microelectronics. Scandium nitride (ScN) is particularly…

Accurate prediction of radiation damage in YBa$_2$Cu$3$O${7-\delta}$ (YBCO) is essential for assessing the performance of high-temperature superconducting (HTS) tapes in compact fusion reactors. Existing empirical interatomic potentials…

The twisted light modes used in modern atomic physics experiments can be contaminated by small admixtures of plane wave radiation. Although these admixtures hardly reveal themselves in the beam intensity profile, they may seriously affect…

Atomic Physics · Physics 2024-01-30 R. P. Schmidt , S. Ramakrishna , A. A. Peshkov , N. Huntemann , E. Peik , S. Fritzsche , A. Surzhykov

Understanding the origin of high-mass stars is central to modern astrophysics. We shed light on this problem with simulations using a novel, adaptive-mesh, ray-tracing algorithm. These simulations consistently follow the gravitational…

Solar and Stellar Astrophysics · Physics 2011-10-14 Thomas Peters , Ralf S. Klessen , Mordecai-Mark Mac Low , Robi Banerjee

Using molecular dynamics (MD) simulation, we investigate the mechanical response of silicon to high dose ion-irradiation. We employ a realistic and efficient model to directly simulate ion beam induced amorphization. Structural properties…

Materials Science · Physics 2009-10-31 Keith M. Beardmore , Niels Gronbech-Jensen

Model defects are known to cause biased nuclear data evaluations if they are not taken into account in the evaluation procedure. We suggest a method to construct prior distributions for model defects for reaction models using neighboring…

Nuclear Theory · Physics 2019-06-26 Georg Schnabel , Henrik Sjöstrand

The emergence of new nanoscale technologies has imposed significant challenges to designing reliable electronic systems in radiation environments. A few types of radiation like Total Ionizing Dose (TID) effects often cause permanent damages…

Machine Learning · Computer Science 2022-01-06 Eduardo Weber Wachter , Server Kasap , Sefki Kolozali , Xiaojun Zhai , Shoaib Ehsan , Klaus McDonald-Maier

We propose a methodology to perform a self-consistent analysis of the physical properties of the emitting gas of HII galaxies adequate to the data that can be obtained with the XXI century technology. This methodology requires the…

Astrophysics of Galaxies · Physics 2009-01-21 G. F. Hagele , A. I. Diaz , E. Terlevich , E. Perez-Montero , R. Terlevich , M. V. Cardaci

Photoionized gases are prevalent throughout the universe. In such gases, the ion concentration typically exhibits two response modes to radiation: a positive response in the low-ionization state and a negative response in the…

Astrophysics of Galaxies · Physics 2025-06-02 Zhicheng He , Tinggui Wang , Gary J. Ferland

This study presents a novel algorithm for identifying ghost targets in automotive radar by estimating complex valued signal strength across a two-dimensional angle grid defined by direction-of-arrival (DOA) and direction-of-departure (DOD).…

Signal Processing · Electrical Eng. & Systems 2026-02-13 Junho Kweon , Vishal Monga