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200 papers

Due to a first order phase transition, a compact star may have a discontinuous distribution of baryon as well as electric charge densities, as e.g. at the surface of a strange quark star. The induced separation of positive and negative…

Solar and Stellar Astrophysics · Physics 2014-11-20 Igor N. Mishustin , Claudio Ebel , Walter Greiner

Hybrid samples combining superconductors with magnetic topological insulators are a promising platform for exploring exotic new transport physics. We examine a Josephson junction of such a system, based on the dilute magnetic topological…

Mesoscale and Nanoscale Physics · Physics 2022-04-27 Pankaj Mandal , Nicolai Taufertshöfer , Lukas Lunczer , Martin P. Stehno , Charles Gould , Laurens W. Molenkamp

We study dilute suspensions of magnetic nanoparticles in a nematic host, on two-dimensional (2D) polygons. These systems are described by a nematic order parameter and a spontaneous magnetization, in the absence of any external fields. We…

Soft Condensed Matter · Physics 2021-05-19 Yucen Han , Joseph Harris , Joshua Walton , Apala Majumdar

Single-turn coil (STC) technique is a convenient way to generate ultrahigh magnetic fields of more than 100 T. During the field generation, the STC explosively destructs outward due to the Maxwell stress and Joule heating. Unfortunately,…

Materials Science · Physics 2021-03-31 M. Gen , A. Ikeda , S. Kawachi , T. Shitaokoshi , Y. H. Matsuda , Y. Kohama , T. Nomura

Bulk high-temperature superconductors (HTS) are capable of generating very strong magnetic fields while maintaining a relatively compact form factor. Solenoids constructed using stacks of ring-shaped bulk HTS have been demonstrated to be…

Applied Physics · Physics 2024-02-16 Dian Weerakonda , Benjamin Bryant , Anthony Dennis , Tobia Nava , John Durrell

In this paper we present an electronic circuit for position or capacitance estimation of MEMS electrostatic actuators based on a switched capacitor technique. The circuit uses a capacitive divider configuration composed by a fixed capacitor…

Other Computer Science · Computer Science 2008-02-22 Z. Szucs , M. Rencz

We propose experiments to observe Bose-Einstein condensation (BEC) and superfluidity of quasi-two-dimensional (2D) spatially indirect magnetoexcitons in bilayer graphene. The magnetic field $B$ is assumed strong. The energy spectrum of…

Strongly Correlated Electrons · Physics 2009-11-13 Oleg L. Berman , Yurii E. Lozovik , Godfrey Gumbs

A detailed stability analysis is presented for the de Sitter solution with a homogeneous magnetic field that was recently found in the context of a $U(1)$ gauge theory nonminimally coupled to scalar-tensor gravity. The magnetic field is…

High Energy Physics - Theory · Physics 2018-12-05 Shinji Mukohyama

We have constructed an imaging device that capable to show a spatio-temporal distribution of magnetic field intensity in real-time. The device employs a set of AMR (Anisotropic Magneto Resistance) 3-axis magnetometers, which are arranged…

Instrumentation and Detectors · Physics 2021-04-06 Andriyan B. Suksmono , Donny Danudirdjo , Antonius D. Setiawan , Rizki P. Prastio , Dien Rahmawati

We simulate the dynamics and the evolution of quiet Sun magnetic elements to produce a probability density function of the field strengths associated with such elements. The dynamics of the magnetic field are simulated through a numerical…

Astrophysics · Physics 2009-11-13 F. Berrilli , D. Del Moro , B. Viticchie

We propose to control light trapping in a large ensemble of cold atoms by an external, static magnetic field. For an appropriate choice of frequency and polarization of the exciting pulse, the field is expected to speed up the fluorescence…

Optics · Physics 2016-07-14 S. E. Skipetrov , I. M. Sokolov , M. D. Havey

The installation provides direct measurements of secondary emission yield and secondary electron velocity/energy distribution in the presence of magnetic field. The measurement system is designed to be installed into superconducting…

Accelerator Physics · Physics 2013-08-02 A. A. Krasnov

The amplification of magnetic fields in a highly conducting fluid is studied numerically. During growth, the magnetic field is spatially intermittent: it does not uniformly fill the volume, but is concentrated in long thin folded…

Chaotic Dynamics · Physics 2009-11-10 A. A. Schekochihin , S. C. Cowley , J. L. Maron , J. C. McWilliams

We investigate the conductance properties of a hybrid ferromagnet-semiconductor structure consisting of a confined two-dimensional electron gas and a transverse ferromagnetic strip on top. Within the framework of the Landauer-B\"uttiker…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Michele Governale , Daniel Boese

Quantum spin-1/2 kagome Heisenberg antiferromagnet is the representative frustrated system possibly hosting a spin liquid. Clarifying the nature of this elusive topological phase is a key challenge in condensed matter, however, even…

Strongly Correlated Electrons · Physics 2015-06-16 Satoshi Nishimoto , Naokazu Shibata , Chisa Hotta

We propose theoretically that a magnetic field can realize spin-triplet superconductivity in repulsively interacting electron systems having strong ferromagnetic spin fluctuations. We confirm the general idea for the low-density Hubbard…

Strongly Correlated Electrons · Physics 2007-05-23 Ryotaro Arita , Kazuhiko Kuroki , Hideo Aoki

The self consistent effective medium approximation (SEMA) is used to study three-dimensional random conducting composites under the influence of a strong magnetic field {\bf B}, in the case where all constituents exhibit isotropic response.…

Materials Science · Physics 2009-10-31 David J. Bergman , David G. Stroud

We present a two-dimensional electron heterostructure field effect device of simplistic design and ease of fabrication that displays high mobility electron transport. This is accomplished using a high efficacy contacting scheme and simple…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 R. L. Willett , L. N. Pfeiffer , K. W. West

We describe a new table-top electrostatic storage ring concept for $30$ keV polarized ions at frozen spin condition. The device will ultimately be capable of measuring magnetic fields with a resolution of 10$^{-21}$ T with sub-mHz…

High Energy Physics - Experiment · Physics 2023-05-03 Chiara Brandenstein , Stefan Stelzl , Erwin Gutsmiedl , Wolfgang Schott , Andreas Weiler , Peter Fierlinger

Magnetic fields have a crucial role in physics at all scales, from astrophysics to nanoscale phenomena. Large fields, constant or pulsed, allow investigation of material in extreme conditions, opening up plethora of practical applications…

Plasma Physics · Physics 2016-07-06 Zsolt Lecz , Ivan V. Konoplev , Andrei Seryi , Alexander Andreev