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This paper presents a new method to determine all components of the electric field gradient tensor and orientation of the hyperfine magnetic field axis in the absorber Cartesian frame for M\"ossbauer spectroscopy for nuclear transitions…

仪器与探测器 · 物理学 2018-12-05 Krzysztof R. Szymański

Recent development of the velocity gradient technique shows the {\toreferee capability} of the technique in the way of tracing magnetic fields morphology in diffuse interstellar gas and molecular clouds. In this paper, we perform the…

星系天体物理 · 物理学 2023-02-01 Ka Wai Ho , Alex Lazarian

The strengths of magnetic fields in interstellar gas clouds are obtained through observations of the circular polarization of spectral line radiation. Irregularities in this magnetic field may be present due to turbulence, waves or perhaps…

天体物理学 · 物理学 2009-10-31 W. D. Watson , D. S. Wiebe , R. M. Crutcher

The moving neutral system of two Coulomb charges on a plane subject to a constant magnetic field $B$ perpendicular to the plane is considered. It is shown that the composite system of finite total mass is bound for any center-of-mass…

量子物理 · 物理学 2016-06-30 M. A. Escobar-Ruiz , A. V. Turbiner

The case of axisymmetric ILC type cavities with titanium helium vessels is investigated. A first order estimate for magnetic field within the SRF current layer is presented. The induced magnetic field is found to be not more than 1.4x10-8…

加速器物理 · 物理学 2014-04-01 Anthony C. Crawford

Faraday rotation of the polarization plane in magnetized thermal plasma provides one of the most efficient methods to deduce regular magnetic fields from radio astronomical observations. Since the Faraday rotation measure RM is proportional…

天体物理学 · 物理学 2009-11-10 Rainer Beck , Anvar Shukurov , Dmitry Sokoloff , Richard Wielebinski

The normal field instability in magnetic liquids is investigated experimentally by means of a radioscopic technique which allows a precise measurement of the surface topography. The dependence of the topography on the magnetic field is…

斑图形成与孤子 · 物理学 2015-06-26 C. Gollwitzer , G. Matthies , R. Richter , I. Rehberg , L. Tobiska

Previous work has introduced scale-split energy density \psi for a given vector field B in order to quantify the field stochasticity S(t). Application to turbulent magnetic fields leads to the prediction that tangling magnetic field by…

高能天体物理现象 · 物理学 2020-02-26 Amir Jafari , Ethan Vishniac , Vignesh Vaikundaraman

We demonstrate the quantitative measurement of the magnetization of individual magnetic nanoparticles (MNP) using a magnetic force microscope (MFM). The quantitative measurement is realized by calibration of the MFM signal using an MNP…

介观与纳米尺度物理 · 物理学 2010-02-22 Kai-Felix Braun , Sibylle Sievers , Dietmar Eberbeck , Stefan Gustafsson , Eva Olsson , Hans Werner Schumacher , Uwe Siegner

We present a comprehensive method for visualisation and quantification of the magnetic stray field of magnetic force microscopy (MFM) probes, applied to the particular case of custom-made multi-layered probes with controllable high/low…

The magnetic arrangement in the vicinity of the interface between a ferromagnet and an antiferromagnet is investigated, in particular its dependence on the exchange couplings and the temperature. Applying a Heisenberg model, both sc(001)…

强关联电子 · 物理学 2009-11-11 P. J. Jensen , H. Dreysee , Miguel Kiwi

We derive general equations for axisymmetric Newtonian MHD and use these as the basis of a code for calculating equilibrium configurations of rotating magnetised neutron stars in a stationary state. We investigate the field configurations…

太阳与恒星天体物理 · 物理学 2012-02-10 S. K. Lander , D. I. Jones

In this paper, a new type magnet is proposed and processed to uniform the transverse beam profile. Compeared to the octupole, the new type magnet can prove a similar octupole magnet field in the middle, but the rise rate declines quickly in…

加速器物理 · 物理学 2017-03-09 Sheng-Dong Gu , Wei-Bin Liu

We examine the behaviour of charged particles in homogeneous, constant and/or oscillating magnetic fields in the non-relativistic approximation. A special role of the geometric center of the particle trajectory is elucidated. In quantum…

量子物理 · 物理学 2015-05-19 Bogdan Mielnik , Alejandra Ramírez

A prediction of the steady-state reconnection electric field in asymmetric reconnection is obtained by maximizing the reconnection rate as a function of the opening angle made by the upstream magnetic field on the weak magnetic field…

等离子体物理 · 物理学 2018-06-13 Yi-Hsin Liu , M. Hesse , P. A. Cassak , M. A. Shay , S. Wang , L. -J. Chen

The spectral distribution of spontaneous emission of electrons moving in a plane wiggler with inhomogeneous magnetic field is calculated. We show that electrons do complicated motion consisting of slow(strophotron) and fast(undulator)…

加速器物理 · 物理学 2020-03-23 E. A. Ayryan , A. H. Gevorgyan , M. Hnatic , N. Sh. Izmailian , V. V. Papoyan , K. B. Oganesyan

A model for quantum dots is proposed, in which the motion of a few electrons in a three-dimensional harmonic oscillator potential under the influence of a homogeneous magnetic field of arbitrary direction is studied. The spectrum and the…

介观与纳米尺度物理 · 物理学 2009-10-30 W. D. Heiss , R. G. Nazmitdinov

To explore the spatial variations of the regular (mean) magnetic field of the Andromeda galaxy (M31), we use Fourier analysis in azimuthal angle along four rings in the galaxy's plane. The Fourier coefficients give a quantitative measure of…

星系天体物理 · 物理学 2025-12-24 Indrajit Paul , R. Vasanth Kashyap , Tuhin Ghosh , Rainer Beck , Luke Chamandy , Srijita Sinha , Anvar Shukurov

We study an asymmetric in field magnetoresistance that is frequently observed in magnetic films and, in particular, the odd longitudinal voltage peaks that appear during magnetization reversal in ferromagnetic films, with out-of-plane…

强关联电子 · 物理学 2015-05-13 A. Segal , O. Shaya , M. Karpovski , A. Gerber

The partial reflection of an electromagnetic (EM) wave from a medium leads to absorption of momentum in the direction perpendicular to the surface (the standard radiation pressure) {and, for oblique incidence on a partially reflecting…

光学 · 物理学 2019-03-26 Andrea Macchi , Anna Grassi , François Amiranoff , Caterina Riconda