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To investigate structure-property correlations, high-coercivity MnxGa nanoparticles were synthesized by the method of sequential deposition of Ga and Mn fluxes using molecular beam epitaxy. Spontaneous nanostructuring was assisted by the…

Materials Science · Physics 2014-02-21 Michelle E. Jamer , Badih A. Assaf , Steven P. Bennett , Laura H. Lewis , Don Heiman

During the CERN Accelerator School 'Superconductivity for accelerators', the students were divided into 18 groups, and 6 different exercises (case studies), involving the design and analysis of superconducting magnets and RF cavities, were…

Accelerator Physics · Physics 2015-01-29 P Ferracin

Machine learning was utilized to efficiently boost the development of soft magnetic materials. The design process includes building a database composed of published experimental results, applying machine learning methods on the database,…

A magnet designed for use in a magnetic refrigeration device is presented. The magnet is designed by applying two general schemes for improving a magnet design to a concentric Halbach cylinder magnet design and dimensioning and segmenting…

Instrumentation and Detectors · Physics 2014-10-09 R. Bjørk , C. R. H. Bahl , A. Smith , D. V. Christensen , N. Pryds

This article presents several design techniques to fabricate micro-electro-mechanical systems (MEMS) using standard complementary metal-oxide semiconductor (CMOS) processes. They were applied to fabricate high yield CMOS-MEMS shielded…

Instrumentation and Detectors · Physics 2021-09-24 Juan Valle , Josep-María Sánchez-Chiva , Daniel Fernández , Jordi Madrenas

MAGIX is a planned experiment that will be implemented at the upcoming accelerator MESA in Mainz. Due to its location in the energy-recovering lane of the accelerator beam-currents up to 1mA with a maximum energy of 105 MeV will be…

As accelerator magnets see the increase of their magnetic field and stored energy, quench protection becomes a critical part of the magnet design. Due to the complexity of the quench phenomenon interweaving magnetic, electrical and thermal…

Accelerator Physics · Physics 2014-01-17 H. Felice , E. Todesco

One of the key elements of the HL-LHC project is the replacement of the magnets that focus the beams near the interaction points of ATLAS and CMS. The new magnets also call for higher precision powering, which is strongly dependent on the…

Instrumentation and Detectors · Physics 2021-01-14 Miguel Bastos , Nikolai Beev , Michele Martino

Future colliders will operate at increasingly high magnetic fields pushing limits of electromagnetic and mechanical stress on the conductor [1]. Understanding factors affecting superconducting (SC) magnet performance in challenging…

The European Laboratory Directors Group (LDG) was mandated by CERN Council in 2021 to oversee the development of an Accelerator R&D Roadmap. To this end, a set of expert panels was convened, covering the five broad areas of accelerator R&D…

Two high field quality quadrupole magnets QF1FF and QD0FF are required for the final focus system of the ATF3. In this paper we focus on the design of the QF1FF magnet. The proposed design is a permanent magnet quadrupole (PMQ) with…

Accelerator Physics · Physics 2012-02-29 Alexey Vorozhtsov , Michele Modena

Using X-ray diffraction, DSC and magnetization measurements, a magnoestructural map of the (Mn,Fe)3(Si,P) system was assembled and reported in the current paper. Besides the already known cubic phase for Mn3-xFexSi system and the tetragonal…

Materials Science · Physics 2014-10-01 J. V. Leitão , You Xinmin , L. Caron , E. Brück

Multiscale simulation is a key research tool for the quest for new permanent magnets. Starting with first principles methods, a sequence of simulation methods can be applied to calculate the maximum possible coercive field and expected…

The development of stellarators that use permanent magnet arrays to shape their confining magnetic fields has been a topic of recent interest, but the requirements for how such magnets must be shaped, manufactured, and assembled remain to…

Plasma Physics · Physics 2020-09-04 K. C. Hammond , C. Zhu , T. Brown , K. Corrigan , D. A. Gates , M. Sibilia

Parametric amplification is an interesting way of artificially increasing a MEMS Quality factor and could be helpful in many kinds of applications. This paper presents a theoretical study of this principle, based on Matlab/Simulink…

Other Computer Science · Computer Science 2008-02-22 L. Grasser , H. Mathias , F. Parrain , X. Le Roux , J. -P. Gilles

The design and synthesis of targeted functional materials have been a long-term goal for material scientists. Although a universal design strategy is difficult to generate for all types of materials, however, it is still helpful for a…

Materials Science · Physics 2020-06-23 Xin Gui , Weiwei Xie

Metal-organic frameworks (MOFs) are an incredibly diverse group of highly porous hybrid materials, which are interesting for a wide range of possible applications. For a reliable description of many of their properties accurate…

Materials Science · Physics 2024-11-26 Sandro Wieser , Egbert Zojer

The magnetic structure is crucial in determining the physical properties inherent in magnetic compounds. We present an adequate descriptor for magnetic structure with proper magnetic symmetry and high discrimination performance, which does…

Materials Science · Physics 2023-07-19 Michi-To Suzuki , Takuya Nomoto , Eiaki V. Morooka , Yuki Yanagi , Hiroaki Kusunose

The generation of outflows from the Sun known as solar winds is coupled with the heating of the solar corona, and both processes are operated in magnetic structures formed on the Sun. To study the magnetic configuration responsible for…

Solar and Stellar Astrophysics · Physics 2015-06-18 Hwanhee Lee , Tetsuya Magara

The electronic structure, magnetism and phase stability of Pt2-xMn1+xGa(x=0, 0.25, 0.5, 0.75, 1) alloys are studied by first-principle calculations. The calculations reveal that a potential magnetic martensitic transformation can be…

Materials Science · Physics 2015-03-03 L. Feng , E. K. Liu , W. X. Zhang , W. H. Wang , G. H. Wu