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The magnetic field of a homogeneously magnetized cylindrical tile geometry, i.e. an angular section of a finite hollow cylinder, is found. The field is expressed as the product between a tensor field describing the geometrical part of the…

计算工程、金融与科学 · 计算机科学 2020-04-27 K. K. Nielsen , R. Bjørk

A closed-form solution for the magnetic scalar potential generated by a uniformly magnetized cylindrical slice and a full cylinder is determined by solving Poisson's equation analytically. The solution is given in terms of elliptic…

经典物理 · 物理学 2025-12-15 Rasmus Bjørk

An analytical formulation to compute a magnetic field generated from an uniformly magnetized cylinder ferromagnet is developed. Exact solutions of the magnetic field generated from the magnetization pointing in an arbitrary direction are…

介观与纳米尺度物理 · 物理学 2018-02-02 Tomohiro Taniguchi

Homogeneous magnetic fields can be generated through the strategic arrangement of permanent magnets. The Halbach array serves as a prominent example of an effective design following this principle. However, it is a two-dimensional approach…

材料科学 · 物理学 2025-06-02 Ingo Rehberg , Peter Blümler

An exact analytic solution has been obtained for a uniformly expanding, neutral, infinitely conducting plasma cylinder in an external uniform and constant magnetic field. The electrodynamical aspects related to the emission and…

等离子体物理 · 物理学 2015-05-19 Hrachya B. Nersisyan

We employ the method of images to derive analytic expressions for the magnetic field of Halbach multipoles that are enclosed in high-permeability shielding.

加速器物理 · 物理学 2026-04-22 Volker Ziemann

The magnetic field from a uniformly magnetised, rectangular prism is known exactly, which is the basis for a large number of micromagnetic simulations. Here we derive an analytical solution for the field from a periodically repeating…

材料科学 · 物理学 2026-04-15 Frederik Laust Durhuus , Andrea Roberto Insinga , Rasmus Bjørk

A Spin-polarised cylindrically symmetric exact class of solutions endowed with magnetic fields in Einstein-Cartan-Maxwell gravity is obtained. Application of matching conditions to this interior solution having an exterior as Einstein's…

广义相对论与量子宇宙学 · 物理学 2015-06-25 L. C. Garcia de Andrade

A simple approach allowing to construct closed-form analytical zero-field magnetization distributions in cylindrical particles of a small thickness and an arbitrary shape (not necessarily circular) is presented. The approach is based on…

介观与纳米尺度物理 · 物理学 2007-05-23 Konstantin L. Metlov

The Halbach cylinder is a construction of permanent magnets used in applications such as nuclear magnetic resonance apparatus, accelerator magnets and magnetic cooling devices. In this paper the analytical expression for the magnetic vector…

经典物理 · 物理学 2014-09-08 R. Bjørk , C. R. H. Bahl , A. Smith , N. Pryds

We provide analytic solutions of the net magnetic field generated by spherical and solenoidal coils enclosed in highly-permeable, coaxial magnetic shields. We consider both spherical and cylindrical shields in the case of the spherical coil…

加速器物理 · 物理学 2020-01-08 C. -Y. Liu , T. Andalib , D. C. M. Ostapchuk , C. P. Bidinosti

We present three-dimensional solutions of the magnetohydrostatic equations in the co-rotating frame of reference outside a magnetized rigidly rotating cylinder. We make no symmetry assumption for the magnetic field, but to be able to make…

地球与行星天体物理 · 物理学 2009-11-30 Thomas Neukirch

The solutions of the London equations for the magnetic field expulsion from superconductors are presented in this paper for the cylindrical symmetry. The result is analyzed in detail and represented numerically for the case of a uniform…

超导电性 · 物理学 2014-07-15 Miguel C. N. Fiolhais , Hanno Essén

Both wire-wound solenoids and cylindrical magnets can be approximately modeled as ideal, azimuthally symmetric solenoids. We present here an exact solution for the magnetic field of an ideal solenoid in an especially easy to use form. The…

经典物理 · 物理学 2015-05-14 Norman Derby , Stanislaw Olbert

We present a target field approach to analytically design magnetic fields using permanent magnets. We assume that their magnetisation is bound to a two-dimensional surface and is composed of a complete basis of surface modes. By posing the…

应用物理 · 物理学 2024-05-24 Peter J. Hobson , Chris Morley , Alister Davis , Thomas Smith , Mark Fromhold

This review is a compilation of relevant concepts in designing Halbach multipoles for magnetic resonance applications. The main focus is on providing practical guidelines to plan, design and build such magnets. Therefore, analytical…

仪器与探测器 · 物理学 2023-11-20 Peter Blümler , Helmut Soltner

We present an effectively global analytical asymptotic galactic dynamo solution for the regular magnetic field of an axisymmetric thin disc in the saturated state. This solution is constructed by combining two well-known types of local…

星系天体物理 · 物理学 2016-09-02 Luke Chamandy

We comment on a recent paper regarding the derivation of the magnetic field components of a solenoid in analytical form by proposing a different and simpler method

加速器物理 · 物理学 2021-04-26 G. Dattoli , E. Di Palma , E. Sabia

In this paper we present the analytical calculations to derive the magnetic field of a solenoid by solving exactly a fractional integral with the use of a novel method. Starting from the Biot-Savart law, we consider a coil of negligible…

加速器物理 · 物理学 2023-01-12 Mostafa Behtouei , Luigi Faillace , Bruno Spataro , Alessandro Variola , Mauro Migliorati

Spatially homogeneous solutions of the Landau--Lifshitz--Gilbert equation are analysed. The conservative as well as the dissipative case is considered explicitly. For the linearly polarized driven Hamiltonian system we apply canonical…

chao-dyn · 物理学 2009-10-28 Thomas Traexler , Wolfram Just , Herwig Sauermann
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