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A universal mechanism for strong magnetic-field effects of nonmagnetic organic semiconductors is presented. A weak magnetic field (less than hundreds mT) can substantially change the charge carrier hopping coefficient between two…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 X. R. Wang , S. J. Xie

It was recently discovered that for a boundary system in the presence of a background magnetic field, the quantum fluctuation of the vacuum would create a non-uniform magnetization density for the vacuum and a magnetization current is…

High Energy Physics - Theory · Physics 2021-07-28 Chong-Sun Chu

Analytically the forces and torques on a coil in a field of magnetic flux density can be calculated one of two ways. The line integral can be conducted along the coil's wire, summing up the differential force contribution. For each…

Instrumentation and Detectors · Physics 2022-09-20 Stephan Schlamminger , Lorenz Keck , Frank Seifert , Leon S. Chao , Darine Haddad , Shisong Li

The current density in a disk-shaped superconducting bulk magnet and the magnetic levitation force exerted on the superconducting bulk magnet by a cylindrical permanent magnet are calculated from first principles. The effect of the…

Superconductivity · Physics 2009-11-07 J. J. Wang , C. Y. He , L. F. Meng , C. Li , R. S. Han , Z. X. Gao

A procedure to measure the magnetic field inside the CMS yoke elements is considered. Fast discharge of the CMS coil can be used to induce voltages in flux loops installed around selected elements of the CMS yoke. By sampling the voltage…

Instrumentation and Detectors · Physics 2022-02-02 V. I. Klyukhin , R. P. Smith , B. Curé , C. Lesmond

For over a century, the Hall effect, a transverse effect under out-of-plane magnetic field or magnetization, has been a cornerstone for magnetotransport studies and applications. Modern theoretical formulation based on the Berry curvature…

Mesoscale and Nanoscale Physics · Physics 2024-12-05 Ayano Nakamura , Shinichi Nishihaya , Hiroaki Ishizuka , Markus Kriener , Yuto Watanabe , Masaki Uchida

A universal mechanism for strong magnetic-field effects of nonmagnetic organic semiconductors is presented. A weak magnetic field (less than hundreds mT) can substantially change the charge carrier hopping coefficient between two…

Mesoscale and Nanoscale Physics · Physics 2010-06-29 X. R. Wang , S. J. Xie

For the generation of static magnetic fields solenoids are frequently used for the purpose of research and development of magnetic field sensors. When such a sensor is to be analyzed with regard to its inherent noise the influence of other…

Instrumentation and Detectors · Physics 2021-11-01 Phillip Durdaut , Henrik Wolframm , Michael Höft

We are interested on the effects, caused by strong variable density dependent magnetic fields, on hyperonic matter, its symmetry energy, equations of state and mass-radius relations. The inclusion of the anomalous magnetic moment of the…

Nuclear Theory · Physics 2013-07-19 Rudiney Hoffmann Casali , Débora Peres Menezes

The pinning of flux lines by two different types of regular arrays of submicron magnetic dots is studied in superconducting Pb films; rectangular Co dots with in-plane magnetization are used as pinning centers to investigate the influence…

Employing very simple electro-mechanical principles known from classical physics, the Kibble balance establishes a very precise and absolute link between quantum electrical standards and macroscopic mass or force measurements. The success…

Instrumentation and Detectors · Physics 2021-01-07 Shisong Li , Stephan Schlamminger , Rafael Marangoni , Qing Wang , Darine Haddad , Frank Seifert , Leon Chao , David Newell , Wei Zhao

In a prior paper (Kim et al. 2015) we considered the linear stability of magnetized jets that carry no net electric current and do not have current sheets. In this paper, in addition to physically well-motivated magnetic field structures,…

High Energy Astrophysical Phenomena · Physics 2016-05-25 Jinho Kim , Dinshaw S. Balsara , Maxim Lyutikov , Serguei S. Komissarov

We calculate the magnetic-field dependent nonlinear conductance and noise in a macroscopic inhomogeneous system. If the system does not possess a specific symmetry, the magnetic field induces a nonzero third cumulant of the current even at…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 K. E. Nagaev , O. S. Ayvazyan , N. Yu. Sergeeva , M. Buttiker

Explicit current-dependent expressions for anisotropic longitudinal and transverse nonlinear magnetoresistivities are represented and analyzed on the basis of a Fokker-Planck approach for two-dimensional single-vortex dynamics in a…

Superconductivity · Physics 2007-05-23 Valerij A. Shklovskij , Oleksandr V. Dobrovolskiy

This paper presents a systematic and comprehensive analysis of the impact of parameter imbalance in permanent magnet synchronous machines. Analytical models that reveal the effects of imbalance are obtained for each parameter. Thereafter,…

Systems and Control · Electrical Eng. & Systems 2023-10-03 Prerit Pramod

We use the linear sigma model with quarks to find the magnetic field-induced modifications to the neutral pion mass at one-loop level. The magnetic field effects are introduced by using charged particle propagators in the presence of a…

High Energy Physics - Phenomenology · Physics 2021-03-31 Alejandro Ayala , José Luis Hernández , L. A. Hernández , Ricardo L. S. Farias , R. Zamora

This paper proposes a nonlinear magnetics model for Permanent Magnet Synchronous Machines (PMSMs) that accurately captures the effects of magnetic saturation in the machine iron and variations in rotor temperature on the permanent magnet…

Systems and Control · Electrical Eng. & Systems 2025-02-05 Kishan Srinivasan , Heath Hofmann , Jing Sun

Temperature changes affect the coercivity of permanent magnets, thereby impacting the $Bl$ factor and potentially introducing systematic errors in Kibble balance measurements. While the thermal-magnetic effect is negligible in large magnet…

Instrumentation and Detectors · Physics 2025-02-12 Weibo Liu , Stephan Schlamminger , Shisong Li

We compute the magnetization of graphene in a magnetic field, taking into account for generality the possibility of a mass gap. We concentrate on the physical regime where quantum oscillations are not observed due to the effect of the…

Mesoscale and Nanoscale Physics · Physics 2012-10-01 Sergey Slizovskiy , Joseph Betouras

In this work, we analyzed theoretically and experimentally the nonlinear dynamics of a magnetic pendulum driven by a coil-magnet interaction. The force between the magnetic elements and the resulting torque on the pendulum are derived using…

Pattern Formation and Solitons · Physics 2024-01-23 Bonaventure Nana , Krystian Polczyński , Paul Woafo , Jan Awrejcewicz , Grzegorz Wasilewski