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We have investigated the magnetic field-induced metal-insulator transition in the tau-phase organic conductors, which occurs in fields above 35 T, and below 14 K, by magnetization, thermoelectric, and pressure dependent transport methods.…

Strongly Correlated Electrons · Physics 2009-11-10 D. Graf , E. S. Choi , J. S. Brooks , N. Harrison , K. Murata , T. Konoike , G. Papavassilou , G. A. Mousdis

The rapid pace of replacing fossil fuel propelled transport by electric vehicles is critically dependent on high-performing, high energy density and efficient batteries. Optimal and safe use of existing battery cells and development of…

Transport coefficients are calculated for a partially ionized plasma consisting of approximately 90% hydrogen and 10\% helium, representative of a model solar atmosphere with an assumed magnetic field profile. The ion Hall parameter,…

Solar and Stellar Astrophysics · Physics 2025-11-07 B P Pandey , Mark Wardle

The motional electric field experienced by an H2+ ion moving in a magnetic field induces an electric dipole, so that one-photon dipole transitions between rovibrational states become allowed. Field induced spontaneous decay rates are…

Atomic Physics · Physics 2018-12-12 Jean-Philippe Karr

The local magnetic field in a Penning-Malmberg trap is found by measuring the temperatures that result when electron plasmas are illuminated by microwaves pulses. Multiple heating resonances are observed as the pulse frequencies are swept.…

Plasma Physics · Physics 2020-03-18 E. D. Hunter , A. Christensen , J. Fajans , T. Friesen , E. Kur , J. S. Wurtele

Achieving highly transmitting molecular junctions through resonant transport at low bias is key to the next-generation low-power molecular devices. Although, resonant transport in molecular junctions was observed by connecting a molecule…

Mesoscale and Nanoscale Physics · Physics 2023-08-09 Biswajit Pabi , Štepán Marek , Adwitiya Pal , Puja Kumari , Soumya Jyoti Ray , Arunabha Thakur , Richard Korytár , Atindra Nath Pal

$\beta$-Ga$_{2}$O$_{3}$ nanomembranes, obtained by ion-beam-assisted exfoliation, are used in the fabrication of simple metal-semiconductor-metal (MSM) structures, that are tested as photodetectors (PD) and field-effect transistors (FET).…

Materials with magnetoelectric coupling (MEC) between ferroic orders at room temperature are emerging field in modern technology and physics. BaTiO3 is a robust ferroelectric in which several doping has led to MEC. In Ca and Mn modified…

During brain function, groups of neurons fire synchronously. When these groups are large enough, the resulting electrical signals can be measured on the scalp using Electroencephalography (EEG). The amplitude of these signals can be…

Neurons and Cognition · Quantitative Biology 2025-02-05 Jesus Acosta-Elias , Santiago Mendez-Moreno , Omar Vital-Ochoa , Ricardo Espinosa-Tanguma

An attractive mechanism for radiation transport by electron holes from the magnetospheric auroral cavity source region down to the ionosphere and possibly even down to the atmosphere is examined. Because of the excitation and propagation…

Space Physics · Physics 2012-08-16 R. A. Treumann , W. Baumjhohann , J. LaBelle , R. Pottelette

We investigated the effect of an electric field on the interface magnetic anisotropy of a thin MgO/Fe/MgO layer using density functional theory. The perpendicular magnetic anisotropy energy (MAE) increases not only under electron depletion…

Materials Science · Physics 2015-06-23 Daiki Yoshikawa , Masao Obata , Yusaku Taguchi , Shinya Haraguchi , Tatsuki Oda

In this study, the impurity concentration and magnetic response of nine highly oriented pyrolytic graphite (HOPG) samples with different grades and from different providers were determined using ion beam microscopy and SQUID magnetometry.…

Materials Science · Physics 2014-06-23 D. Spemann , P. Esquinazi , A. Setzer , W. Böhlmann

The Isochronous Mass Spectrometry (IMS) based on storage rings is a powerful technique for mass measurement of short-lived exotic nuclei. The transition energy $\gamma_t$ of the storage ring is a vital parameter of the IMS technique. It is…

The proposed switching mechanism is based on an electronically-induced metal-insulator transition occurring in conditions of the excess non-equilibrium carrier density under the applied electric field. First, this mechanism is developed on…

Materials Science · Physics 2007-05-23 P. P. Boriskov , A. L. Pergament , A. A. Velichko , G. B. Stefanovich , N. A. Kuldin

Magnetic-field generation by a relativistic ion beam propagating through an electron-ion plasma along a homogeneous magnetic field is investigated with 2.5D high-resolution particle-in-cell (PIC) simulations. The studies test predictions of…

High Energy Astrophysical Phenomena · Physics 2014-11-20 Jacek Niemiec , Martin Pohl , Antoine Bret , Thomas Stroman

One of the great challenges in biology is to observe, at sufficient detail, the real-time workings of the cell. Many methods exist to do cell measurements invasively. For example, mass spectrometry has tremendous mass sensitivity but…

Quantitative Methods · Quantitative Biology 2017-10-23 Jan G. Korvink , Neil MacKinnon

We describe an impedance-based method for cell barrier integrity testing. A four-electrode electrical impedance spectroscopy (EIS) setup can be realized by simply connecting a commercial chopstick-like electrode (STX-1) to a potentiostat…

A dedicated clinical synchrotron facility for cancer therapy using energetic proton and ion beams (C, He and O) has been designed at GSI for the Radiologische Universitaetsklinik at Heidelberg, Germany. The design of the injector linac is…

Accelerator Physics · Physics 2007-05-23 B. Schlitt , A. Bechtold , U. Ratzinger , A. Schempp

We report on the magnetic and magnetotransport properties of ferromagnetic semiconductor (Ga,Mn)As modified by Ga$^{+}$ ion irradiation using focused ion beam. A marked reduction in the conductivity and the Curie temperature is induced…

Materials Science · Physics 2009-11-10 H. Kato , K. Hamaya , Y. Kitamoto , T. Taniyama , H. Munekata

A small magnetic field (~30 mT) can effectively modulate the electroluminescence, conductance and/or photocurrent of organic semiconductor based devices, up to 10% at room temperature. This organic magnetic field effect (OMFE) is one of the…

Materials Science · Physics 2010-03-25 B. K. Li , H. T. He , W. J. Chen , M. K. Lam , K. W. Cheah , J. N. Wang
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