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200 papers

We propose a new concept of magnetic focusing for targeting and accumulation of functionalized superparamagnetic nanoparticles in living organs through composite configurations of different permanent magnets. The proposed setups fulfill two…

Materials Science · Physics 2020-12-10 A. Omelyanchik , G. Lamura , D. Peddis , F. Canepa

A tunable magnetic field at low temperatures is essential for numerous applications, including spintronics, magnetic resonance imaging, and condensed matter physics. While commercial superconducting vector magnets are available, they are…

Instrumentation and Detectors · Physics 2025-07-25 Gaia Da Prato , Yong Yu , Ronald Bode , Simon Gröblacher

The Compact Muon Solenoid (CMS) detector at the Large Hadron Collider at CERN is used to study the production of new particles in proton-proton collisions at a center of mass energy of 13.6 TeV. The detector includes a magnet based on a 6 m…

Instrumentation and Detectors · Physics 2025-01-20 Vyacheslav Klyukhin , Benoit Curé , Andrea Gaddi , Antoine Kehrli , Maciej Ostrega , Xavier Pons

High pressure Nuclear Magnetic Resonance (NMR) is known to uncover behavior of matter at extreme conditions. However, significant maintenance demands, space requirements and high costs of superconducting magnets render its application…

Cardiomagnetometry is a growing field of noninvasive medical diagnostics that has triggered a need for affordable high-sensitivity magnetometers. Optical pumping magnetometers are promising candidates satisfying that need since it was…

Medical Physics · Physics 2009-11-10 Georg Bison , Robert Wynands , Antoine Weis

The usage of permanent magnets to shape the confining magnetic field of a stellarator has the potential to reduce or eliminate the need for non-planar coils. As a proof-of-concept for this idea, we have developed a procedure for designing…

Plasma Physics · Physics 2022-11-17 K. C. Hammond , C. Zhu , K. Corrigan , D. A. Gates , R. Lown , R. Mercurio , T. M. Qian , M. C. Zarnstorff

A conduction-cooled superconducting magnet producing a transverse field of 4 Tesla has been designed for the new generation multi-field coupling measurement system, which was used to study the mechanical behavior of superconducting samples…

Instrumentation and Detectors · Physics 2016-01-20 Yuquan Chen , Lizhen Ma , Wei Wu , Mingzhi Guan , Beimin Wu , Enming Mei , Canjie Xin

The prospect of efficient solid state refrigeration at room temperature is driving research into magnetic cooling engine design and magnetic phase transition-based refrigerants. In this Viewpoint an Ashby-style map of magnetic refrigerant…

Materials Science · Physics 2012-10-02 Karl G. Sandeman

The feasibility of shielding axial magnetic fields up to 1.4~T, using a Bi-2212 hollow cylinder, is investigated at a temperature of 4.2~K. The residual magnetic flux density along the axis of the tube is measured at external fields of 1~T…

Instrumentation and Detectors · Physics 2023-04-05 Alaa Dbeyssi , Bertold Froelich , Maria Carmen Mora Espi , Frank Maas , Luigi Capozza , Oliver Noll , Yadi Wang , Dexu Lin

We present the design, construction and characterization of Bitter-type electromagnets which can generate high magnetic fields under continuous operation with efficient heat removal for cold atom experiments. The electromagnets are…

Instrumentation and Detectors · Physics 2013-10-29 Dylan Sabulsky , Colin V. Parker , Nathan D. Gemelke , Cheng Chin

We investigate the specific heat and magnetisation of a ferrimagnet with gS=1 and S=1/2 spins in a finite magnetic field using the transfer matrix DMRG down to T=0.025J. Ferromagnetic gapless and antiferromagnetic gapped excitations for H=0…

Condensed Matter · Physics 2009-10-31 K. Maisinger , U. Schollwoeck , S. Brehmer , H. J. Mikeska , S. Yamamoto

Recent discovery of a Higgs boson boosted interest in a low-energy medium-luminosity Muon Collider as a Higgs Factory (HF). A preliminary design of the HF storage ring (SR) is based on cos-theta Nb3Sn superconducting (SC) magnets with the…

A tiny adiabatic-demagnetization refrigerator (T-ADR) has been developed for a commercial superconducting quantum interference device magnetometer [Magnetic Property Measurement System (MPMS) from Quantum Design]. The whole T-ADR system is…

Instrumentation and Detectors · Physics 2017-01-04 Taku J Sato , Daisuke Okuyama , Hideo Kimura

Inhomogeneous distribution of the pinning force in superconductor results in a magnetization asymmetry. A model considering the field distribution in superconductor was developed and symmetric and asymmetric magnetization loops of porous…

Superconductivity · Physics 2012-05-21 D. M. Gokhfeld , D. A. Balaev , M. I. Petrov , S. I. Popkov , K. A. Shaykhutdinov , V. V. Valkov

The dilute Heisenberg ferromagnet is studied taking into account fluctuations of magnetization caused by disorder. A self-consistent system of equations for magnetization and its mean quadratic fluctuations is derived within the…

Condensed Matter · Physics 2015-06-25 I. Vakarchuk , V. Tkachuk , T. Kuliy

The polycrystalline Mn1.26Fe0.60P0.48Si0.52 microwires were successfully fabricated for the first time by the melt-extraction technique, and their magnetic and magnetocaloric properties were investigated systematically. The structural…

Superconducting high field magnets have the capability to generate over 40 T, with multiple existing practical applications globally. However, at such high magnetic fields, these magnets are prone to rapid electrothermal quench which can…

Applied Physics · Physics 2026-02-16 Anang Dadhich , Philippe Fazilleau , Enric Pardo

A novel frequency modulated MEMS magnetometer is presented. The new device is inspired by the magnetic force microscopy technique, it combines standard MEMS technology with magnetic elements to obtain a magnetometer with potential for low…

Instrumentation and Detectors · Physics 2021-09-08 Federico Maspero , Gabriele Gatani , Simone Cuccurullo , Riccardo Bertacco

An atomic magnetometer operated with elliptically polarized light is investigated theoretically and experimentally. To explore the potential of this magnetometric configuration, the analytical form of the outgoing signal is derived.…

Atomic Physics · Physics 2020-01-08 Shengran Su , Guoyi Zhang , Xin Bi , Xiang He , Wenqiang Zheng , Qiang Lin

Using mean-field theory, we compute the evolution of the magnetic field in a cylinder with outer perfectly conducting boundaries, an imposed axial magnetic and electric field. The thus injected magnetic helicity in the system can be…

Plasma Physics · Physics 2012-03-27 Koen Kemel , Axel Brandenburg , Hantao Ji