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Miniaturized, ultra-sensitive and easily integrable magnetometers are needed for many applications, like space exploration or health monitoring. Achieving this goal requires a magnetic sensor with high sensitivity and low noise. High…

Three-dimensional particle-in-cell simulations are employed to investigate electron transport characteristics in Hall thrusters, with particular focus on how magnetic field configuration affects the electron transport due to electron drift…

Plasma Physics · Physics 2025-12-09 Yinjian Zhao , Kunpeng Zhong

Spin-resolved electron symmetry filtering is a key mechanism behind giant tunneling magnetoresistance (TMR) in Fe/MgO/Fe and similar magnetic tunnel junctions (MTJs), providing room temperature functionality in modern spin electronics.…

Mesoscale and Nanoscale Physics · Physics 2021-10-12 César González-Ruano , Coriolan Tiusan , Michel Hehn , Farkhad G. Aliev

Using two-dimensional particle-in-cell simulations, we examine how an externally applied strong magnetic impacts proton acceleration in laser-irradiated solid-density targets. We find that a kT-level external magnetic field can sufficiently…

Plasma Physics · Physics 2016-11-23 Alexey Arefiev , Toma Toncian , Gennady Fiksel

Transmission electron microscopy at very low energy is a promising way to avoid damaging delicate biological samples with the incident electrons, a known problem in conventional transmission electron microscopy. For imaging in the 0-30 eV…

Materials Science · Physics 2020-09-22 Peter S. Neu , Daniël Geelen , Aniket Thete , Rudolf M. Tromp , Sense Jan van der Molen

Turbulent transport driven by trapped electron modes (TEMs) is believed to drive significant heat and particle transport in quasihelically symmetric stellarators. Two three-dimensionally-shaped magnetic configurations with suppressed…

Plasma Physics · Physics 2024-12-30 J. M. Duff , B. J. Faber , C. C. Hegna , M. J. Pueschel , P. W. Terry

We report on the development of transmission-line reflectionless filters operating with passbands at 100 GHz and 230 GHz, and stopband absorption up to 500 GHz, the highest operating frequencies yet recorded for such filters. The designs…

Instrumentation and Detectors · Physics 2025-11-17 Matthew A. Morgan , Matt Bauwens , Seng Loo , Miho Hunter , Tod A. Boyd , Robert M. Weikle

Electron transpiration cooling (ETC) can reduce aerothermal loads on sharp hypersonic leading edges, but its performance is governed by whether thermionically emitted electrons escape the hot surface or return as cathode-directed backflow.…

Plasma Physics · Physics 2026-05-11 Wushun Zhang , Weixing Zhou , Yinjian Zhao

The complete short mean free path description of magnetized plasma in the drift ordering has recently been derived. The results correct the previous expressions for the ion pressure anisotropy (or parallel ion viscosity) and the…

Plasma Physics · Physics 2007-05-23 Peter J. Catto , Andrei N. Simakov

We report a novel experimental technique that measures simultaneously in three dimensions the trajectories, the translation, and the rotation of finite size inertial particles together with the turbulent flow. The flow field is analyzed by…

Fluid Dynamics · Physics 2012-12-24 Simon Klein , Mathieu Gibert , Antoine Bérut , Eberhard Bodenschatz

An independent control of the flux and energy of ions impacting on an object immersed in a plasma is often desirable for many industrial processes such as microelectronics manufacturing. We demonstrate that a simultaneous control of these…

Plasma Physics · Physics 2018-08-29 Sarveshwar Sharma , Igor Kaganovich , Alexander Khrabrov , Predhiman Kaw , Abhijit Sen

We investigate electron transporting through a two-dimensional ferromagnetic/normal/ferromagnetic tunnel junction on the surface of a three-dimensional topological insulator with taking into $\delta$ doping account. It is found that the…

Mesoscale and Nanoscale Physics · Physics 2013-07-05 Jian-Hui Yuan , Yan Zhang , Daizheng Huang , Qinhu Zhong , Xin Zhang

A prototype of ion beam transport module has been developed at the Institut Pluridisciplinaire Hubert Curien (IPHC) and used as a test bed to investigate key issues related to the efficient transport of ion beams. This includes the…

Accelerator Physics · Physics 2023-03-14 F Osswald , E Traykov , T Durand , M Heine , J Michaud , J C Thomas

We report on sub-cycle terahertz light-field emission of electrons from tungsten nanotips under extreme conditions corresponding to a Keldysh parameter $\gamma_K\approx10^{-4}$. Local peak THz fields up to 40~GV/m are achieved at the apex…

We present a theoretical framework for the calculation of charge transport through nanowire-based Schottky-barrier field-effect transistors that is conceptually simple but still captures the relevant physical mechanisms of the transport…

Mesoscale and Nanoscale Physics · Physics 2011-07-26 Daijiro Nozaki , Jens Kunstmann , Felix Zörgiebel , Walter M. Weber , Thomas Mikolajick , Gianaurelio Cuniberti

This paper presents a design methodology for optimal transmission energy allocation at a sensor equipped with energy harvesting technology for remote state estimation of linear stochastic dynamical systems. In this framework, the sensor…

Optimization and Control · Mathematics 2016-11-18 Mojtaba Nourian , Alex S. Leong , Subhrakanti Dey

Electron energy filtering has been suggested as a promising way to improve the power factor and enhance the ZT figure of merit of thermoelectric materials. In this work we explore the effect that reduced dimensionality has on the success of…

Mesoscale and Nanoscale Physics · Physics 2017-01-11 Mischa Thesberg , Hans Kosina , Neophytos Neophytou

Spin-based logic devices could operate at very high speed with very low energy consumption and hold significant promise for quantum information processing and metrology. Here, an in-house developed, experimentally verified, ensemble…

Computational Physics · Physics 2018-01-03 B. Thorpe , K. Kalna , F. C. Langbein , S Schirmer

In this article, we present the result of the research, which was directed to gaining electromotive voltage in a theoretically pure way. We designed and built a brushless generator that simulates a homogenised magnetic field and should…

Classical Physics · Physics 2018-02-22 Pavol Ivana , Marika Ivanova

We have theoretically studied the full counting statistics of electron transport through a single-molecule magnet (SMM) with an arbitrary angle between the applied magnetic field and the SMM's easy axis above the sequential tunneling…

Mesoscale and Nanoscale Physics · Physics 2011-04-21 Hai-Bin Xue , Y. -H. Nie , Z. -J. Li , J. -Q. Liang