Optimization of microstructure for HRE-free Nd-Fe-B magnets with improved properties by Yuxin Zhao, Rui Han, Meng Zheng, Xun Duan, Xiaoning Shi, Xianjun Hu, Hongsheng Chen, Dong Zhou, Shengzhi Dong, Wei Li

“…In this work, we successfully prepared heavy rare earth (HRE)-free Nd-Fe-B sintered magnets with improved coercivity (Hcj) and remanence (Br) by precisely controlling the grain size and optimizing the grain boundaries (GBs). …”
Get full text

The March 1940 Superstorm: Geoelectromagnetic Hazards and Impacts on American Communication and Power Systems by Jeffrey J. Love, E. Joshua Rigler, Michael D. Hartinger, Greg M. Lucas, Anna Kelbert, Paul A. Bedrosian

“…It is concluded that the March 1940 magnetic storm was unusually effective at inducing geoelectric fields. …”
Get full text

Multiple Episodes of Remote Brightenings Driven by a Coronal Extreme-ultraviolet Jet on the Sun by Chao Zhang, Zhenghua Huang, Hengyuan Wei, Youqian Qi, Mijie Shi, Hui Fu, Xiuhui Zuo, Weixin Liu, Mingzhe Sun, Ming Xiong, Lidong Xia

Get full text

Electromagnetic design, sensitivity analysis, optimization and Multiphysics capability of rare-earth-free synchronous reluctance motor for electric trike vehicle by V Rajini, VS Nagarajan, Karunya Harikrishnan, Mohan Lal Kolhe

“…The permanent magnet machines presented here utilize ferrite magnets, in line with the recent trend of not using rare-earth magnets. …”
Get full text

Digitized Continuous Magnetic Recordings for the August/September 1859 Storms From London, UK by C. D. Beggan, E. Clarke, E. Lawrence, E. Eaton, J. Williamson, K. Matsumoto, H. Hayakawa

“…Abstract Dedicated scientific measurements of the strength and direction of the Earth's magnetic field began at Greenwich and Kew observatories in London, United Kingdom, in the middle of the nineteenth century. …”
Get full text

Weak magnetism of Martian impact basins may reflect cooling in a reversing dynamo by S. C. Steele, R. R. Fu, A. Mittelholz, A. I. Ermakov, R. I. Citron, R. J. Lillis

“…To understand how a reversing dynamo would affect basin fields, here we model the cooling and magnetization of 200-2200 km diameter impact basins under a range of Earth-like reversal frequencies. …”
Get full text

First-principles calculations to investigate thermoelectric, thermophysical, and optical properties of RNi₄P₁₂ (R = Sm, Eu) rare-earth metal skutterudites by Poorva Nayak, Dinesh C. Gupta

“…Additionally, spin-polarized band structures unveil significant net magnetism, indicating potential applications in spintronics. …”
Get full text

Failure of a Solar Filament Eruption Caused by Magnetic Reconnection with Overlying Coronal Loops by Leping Li, Hongqiang Song, Yijun Hou, Guiping Zhou, Baolin Tan, Kaifan Ji, Yongyuan Xiang, Zhenyong Hou, Yang Guo, Ye Qiu, Yingna Su, Haisheng Ji, Qingmin Zhang, Yudi Ou

Get full text

Pulsed vector atomic magnetometer using an alternating fast-rotating field by Tao Wang, Wonjae Lee, Mark Limes, Thomas Kornack, Elizabeth Foley, Michael Romalis

“…Abstract We introduce a vector atomic magnetometer that employs a fast-rotating magnetic field applied to a pulsed 87Rb scalar atomic magnetometer. …”
Get full text

Mapping of Deep Tectonic Structures of Central and Southern Cameroon by an Interpretation of Surface and Satellite Magnetic Data by Constantin Mathieu Som Mbang, Charles Antoine Basseka, Joseph Kamguia, Jacques Etamè, Cyrille Donald Njiteu Tchoukeu, Marcelin Pemi Mouzong

“…The horizontal gradient associated with upward continuation and the 3D Euler deconvolution methods have been applied to the Earth Magnetic Anomaly Grid 2 (EMAG2) data from the study area. …”
Get full text

Comparison and Analysis of Matching patterns using Simulation with Subsurface Navigation Approach Based on Magnetic Maps by Ali Hasankhani

“…The related system design is also discussed.It is very important to use a backup positioning system at times or places where global positioning system is not available. Magnetic navigation methods or positioning using the Earth's magnetic field have recently attracted the attention of researchers and military experts around the world.Key words: Information security, subsurface navigation, independent of GPS, magnetism, matching algorithm, simulation…”
Get full text

Effect of Additional Magnetograph Observations From Different Lagrangian Points in Sun‐Earth System on Predicted Properties of Quasi‐Steady Solar Wind at 1 AU by A. A. Pevtsov, G. Petrie, P. MacNeice, I. I. Virtanen

“…Abstract Modeling the space weather conditions for a near‐Earth environment depends on a proper representation of magnetic fields on the Sun. …”
Get full text

Magnetic anisotropy of 4f atoms on a WSe2 monolayer: a DFT + U study by Johanna P. Carbone, Gustav Bihlmayer, Stefan Blügel

“…Abstract Inspired by recent advancements in the field of single-atom magnets, particularly those involving rare-earth (RE) elements, we present a theoretical exploration employing DFT+U calculations to investigate the magnetic properties of selected 4f atoms, specifically Eu, Gd, and Ho, on a monolayer of the transition-metal dichalcogenide WSe2 in the 1H-phase. …”
Get full text

Electrical Conductivity of Mantle Transition Zone and Water Content Revealed by the Magnetic Data of China Seismo-Electromagnetic Satellite by Mingquan Lai, Xiuyan Ren, Changchun Yin, Yunhe Liu, Xinpeng Ma, Yinglin Wang, Shufan Zhao

“…The radial conductivity model and uncertainty information of the Earth are obtained by using Bayesian inversion. It is found that large changes in the electrical results of MTZ occur when using the CSES magnetic field data. …”
Get full text

Continuous underground observation of the geomagnetic field in Xuzhou City, North China, and its time-varying characteristics by Mei Han, Mei Han, Lianghui Guo, Lianghui Guo, Lianghui Guo, Yun Wang, Yun Wang, Xiang Wang, Xiang Wang

Get full text

Three‐Dimensional Modeling of the Ground Electric Field in Fennoscandia During the Halloween Geomagnetic Storm by Elena Marshalko, Mikhail Kruglyakov, Alexey Kuvshinov, Ari Viljanen

“…Abstract In this study, we perform three‐dimensional (3‐D) ground electric field (GEF) modeling in Fennoscandia for three days of the Halloween geomagnetic storm (29–31 October 2003) using magnetic field data from the International Monitor for Auroral Geomagnetic Effects (IMAGE) magnetometer network and a 3‐D conductivity model of the region. …”
Get full text

Fundamental Understanding of Magnetic Reconnection via Spiral CT Scan. I. Density, Temperature, Pressure, and Method Validation by H. S. Fu, Z. Wang, J. B. Cao

Get full text

A Statistical Investigation of Factors Influencing the Magnetotail Twist at Mars by Gina A. DiBraccio, Norberto Romanelli, Charles F. Bowers, Jacob R. Gruesbeck, Jasper S. Halekas, Suranga Ruhunusiri, Tristan Weber, Jared R. Espley, Shaosui Xu, Janet G. Luhmann, Yuki Harada, Eduard Dubinin, Gang Kai Poh, David A. Brain, Shannon M. Curry

“…This preference is likely due to the local orientation of crustal magnetic fields across the surface of Mars, where a +BY IMF orientation presents ideal conditions for magnetic reconnection to occur. …”
Get full text

Diffusion behavior controlled performance enhancement of Nd-Fe-B magnets diffused by Tb-Ni alloy at various temperatures by Xuhang Zhang, Wanqi Qiu, Yixin Xu, Xuefeng Liao, Qing Zhou, Hongya Yu, Zhongwu Liu

Get full text

Manipulation of room-temperature magnetic skyrmions in a van der Waals ferromagnet Fe3GaTe2 by Yanlong Yin, Minghe Liu, Wei Li, Wan Li, Mengting Zou, Si Wu, Weixing Xia, Baomin Wang

Get full text