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In the search for more efficient and less environmentally harmful cooling technologies, the field of magnetocalorics is considered a promising alternative. To generate cooling spans, rotating permanent magnet assemblies are used to…

This is a brief review of the recent developments in the theory of magnetic acceleration of relativistic jets. We attempt to explain the key results of this complex theory using basic physical arguments and simple calculations. The main…

High Energy Astrophysical Phenomena · Physics 2010-06-14 S. S. Komissarov

We discuss the development of a research-based conceptual multiple-choice survey related to magnetism. We also discuss the use of the survey to investigate gender differences in students' difficulties with concepts related to magnetism. We…

Physics Education · Physics 2016-02-17 Jing Li , Chandralekha Singh

We summarize progress in the development and application of metamaterial structures utilizing superconducting elements. After a brief review of the salient features of superconductivity, the advantages of superconducting metamaterials over…

Superconductivity · Physics 2010-11-18 Steven M. Anlage

We aim at combining high coercivity magnetic nanowires in a polymer matrix in a view to fabricate rare--earth free bonded magnets. In particular, our aim is to fabricate anisotropic materials by aligning the wires in the polymer matrix. We…

We present various planar magnetic designs that create points above the plane where the magnitude of the static magnetic field is a local minimum. Structures with these properties are of interest in the disciplines of neutral atom…

Atomic Physics · Physics 2007-05-23 M. Barbic , C. P. Barrett , T. H. Emery , A. Scherer

In this paper, different electric motors are studied and compared to see the benefits of each motor and the one that is more suitable to be used in the electric vehicle applications. There are five main electric motor types, DC, induction,…

Systems and Control · Computer Science 2014-05-28 Uma Gupta

The electrical machinery core is formed with a ferromagnetic material that offers high magnetic properties. As ferromagnetic materials have high relative magnetic permeability, they are important in the formation of electromagnetic device…

Applied Physics · Physics 2022-09-21 Shinthia Binte Eskender , Anupam Saha , Shaikh Ishtiaque Ahmed

A major focus of Nb$_3$Sn accelerator magnets is on significantly reducing or eliminating their training. Demonstration of an approach to increase the $C_p$ of Nb$_3$Sn magnets using new materials and technologies is very important both for…

Accelerator Physics · Physics 2020-09-29 E. Barzi , F. Berritta , D. Turrioni , A. V. Zlobin

Each stage of an accelerator system has a limited dynamic range and therefore a chain of stages is required to reach high energy. A combination of septa and kicker magnets is frequently used to inject and extract beam from each stage. The…

Accelerator Physics · Physics 2011-03-09 M. J. Barnes , L. Ducimetiére , T. Fowler , V. Senaj , L. Sermeus

A repetitive-pulse magnet is a promising tool when combined with repetitive excitations, such as pulsed lasers. Technically, the repetition and the magnetic field values in a repetitive-pulse magnet are limited by the Joule heating in the…

Applied Physics · Physics 2026-05-15 Akihiko Ikeda , Yuto Ishii , Yasuhiro H. Matsuda , Go Yumoto , Ayumi Abe , Ryusuke Matsunaga

A new model for mechanical computing is demonstrated that requires only two basic parts: links and rotary joints. These basic parts are combined into two main higher level structures: locks and balances, which suffice to create all…

Emerging Technologies · Computer Science 2019-03-27 Ralph C. Merkle , Robert A. Freitas , Tad Hogg , Thomas E. Moore , Matthew S. Moses , James Ryley

A calculation is presented which quantitatively accounts for the terminal velocity of a cylindrical magnet falling through a long copper or aluminum pipe. The experiment and the theory are a dramatic illustration of the Faraday's and Lenz's…

Classical Physics · Physics 2007-05-23 Yan Levin , Fernando L. da Silveira , Felipe B. Rizzato

These notes are intended to provide a brief primer in plasma physics, introducing common definitions, basic properties, and typical processes found in plasmas. These concepts are inherent in contemporary plasma-based accelerator schemes,…

Accelerator Physics · Physics 2017-05-31 P. Gibbon

Propulsion of the chiral magnetic nanomotors powered by a rotating magnetic field is in the focus of the modern biomedical applications. This technology relies on strong interaction of dynamic and magnetic degrees of freedom of the system.…

Soft Condensed Matter · Physics 2013-12-13 Konstantin I. Morozov , Alexander M. Leshansky

Materials such as magnetic shape-memory alloys possess an intrinsic coupling between material's magnetisation and mechanical deformation. These materials also undergo structural phase transitions, with phase boundaries separating different…

Computational Physics · Physics 2026-02-04 Michael Poluektov

We describe a scheme for first-principles calculations of the static, paramagnetic, spin susceptibility of metals with relativistic effects such as spin-orbit coupling included. This gives the direction for an applied modulated magnetic…

Materials Science · Physics 2007-05-23 V. Thakor , J. B. Staunton , J. Poulter , S. Ostanin , B. Ginatempo , Ezio Bruno

Magnons, as the most elementary excitations of magnetic materials, have recently emerged as a prominent tool in electrical and thermal manipulation and transport of spin, and magnonics as a field is considered as one of the pillars of…

The possible use of spin and magnets in place of charge and capacitors to store and process information is well known. Magnetic tunnel junctions are being widely investigated and developed for magnetic random access memories. These are two…

Mesoscale and Nanoscale Physics · Physics 2014-11-26 Behtash Behin-Aein , Jian-Ping Wang , Roland Wiesendanger

Geometric mechanics is usually studied in applied mathematics and most introductory texts are hence aimed at a mathematically minded audience. The present note tries to provide the intuition of geometric mechanics and to show the relevance…

Mathematical Physics · Physics 2012-06-18 Christian Lessig