Exotic magnetic structures created with laser light

Journal Reference: Emil Viñas Boström, Angel Rubio, Claudio Verdozzi. Microscopic theory of light-induced ultrafast skyrmion excitation in transition metal films. npj Computational Materials, 2022; 8 (1) DOI: 10.1038/s41524-022-00735-5 Magnetic skyrmions are sometimes described as magnetic vortices. Unlike ferromagnetic states — which occur in conventional magnets such as compasses and refrigerator magnets — the skyrmion state … Read more

Scientists find ‘knob’ to control magnetic behavior in quantum material

Journal Reference: Hari Padmanabhan, Maxwell Poore, Peter K. Kim, Nathan Z. Koocher, Vladimir A. Stoica, Danilo Puggioni, Huaiyu (Hugo) Wang, Xiaozhe Shen, Alexander H. Reid, Mingqiang Gu, Maxwell Wetherington, Seng Huat Lee, Richard D. Schaller, Zhiqiang Mao, Aaron M. Lindenberg, Xijie Wang, James M. Rondinelli, Richard D. Averitt, Venkatraman Gopalan. Interlayer magnetophononic coupling in MnBi2Te4. … Read more

Plasma turbulence spreading by magnetic fluctuation reduces heat load on a fusion device wall

Journal Reference: M. Kobayashi, K. Tanaka, K. Ida, Y. Hayashi, Y. Takemura, T. Kinoshita. Turbulence Spreading into an Edge Stochastic Magnetic Layer Induced by Magnetic Fluctuation and Its Impact on Divertor Heat Load. Physical Review Letters, 2022; 128 (12) DOI: 10.1103/PhysRevLett.128.125001 To achieve fusion power generation, it is necessary to confine the plasma in a … Read more

Mercury has magnetic storms

Journal Reference: QiuGang Zong, JiuTong Zhao, JianJun Liu, SuiYan Fu, WeiJie Sun, Hui Zhang, Guan Le, Robert Rankin, Yong Wei. Magnetic storms in Mercury’s magnetosphere. Science China Technological Sciences, 2022; DOI: 10.1007/s11431-022-2009-8 The research by scientists in the United States, Canada and China includes work by Hui Zhang, a space physics professor at the University … Read more

Making memory serve accurately: Fixing an inherent problem in next-generation magnetic RAM

Journal Reference: Yuwa Kishi, Akihiro Yamada, Mengnan Ke, Takayuki Kawahara. Examination of Magnetization Switching Behavior by Bi-directional Read of Spin-orbit-torque MRAM. IEEE Transactions on Magnetics, 2022; 1 DOI: 10.1109/TMAG.2022.3154025 Each memory cell in a magnetic RAM stores either a ‘1’ or a ‘0’ depending on whether the magnetic orientation of two magnetic layers are equal … Read more

Magnetic reconnection breakthrough may help predict space weather

Journal Reference: Peiyun Shi, Prabhakar Srivastav, M. Hasan Barbhuiya, Paul A. Cassak, Earl E. Scime, M. Swisdak. Laboratory Observations of Electron Heating and Non-Maxwellian Distributions at the Kinetic Scale during Electron-Only Magnetic Reconnection. Physical Review Letters, 2022; 128 (2) DOI: 10.1103/PhysRevLett.128.025002 Peiyun Shi’s research is the first-of-its-kind in the laboratory setting and is part of … Read more

Researchers map magnetic fields in 3D, findings could improve device storage capacity

Journal Reference: Kodai Niitsu, Yizhou Liu, Alexander C. Booth, Xiuzhen Yu, Nitish Mathur, Matthew J. Stolt, Daisuke Shindo, Song Jin, Jiadong Zang, Naoto Nagaosa, Yoshinori Tokura. Geometrically stabilized skyrmionic vortex in FeGe tetrahedral nanoparticles. Nature Materials, 2022; 21 (3): 305 DOI: 10.1038/s41563-021-01186-x “The number three really represents a breakthrough in this field,” said Jiadong Zang, … Read more

Magnetic excitations could provide information transfer without heat loss

Journal Reference: T. Weber, D. M. Fobes, J. Waizner, P. Steffens, G. S. Tucker, M. Böhm, L. Beddrich, C. Franz, H. Gabold, R. Bewley, D. Voneshen, M. Skoulatos, R. Georgii, G. Ehlers, A. Bauer, C. Pfleiderer, P. Böni, M. Janoschek, M. Garst. Topological magnon band structure of emergent Landau levels in a skyrmion lattice. Science, … Read more

Visualization of the origin of magnetic forces by atomic resolution electron microscopy

Journal Reference: Yuji Kohno, Takehito Seki, Scott D. Findlay, Yuichi Ikuhara, Naoya Shibata. Real-space visualization of intrinsic magnetic fields of an antiferromagnet. Nature, 2022; 602 (7896): 234 DOI: 10.1038/s41586-021-04254-z Electron microscopes have the highest spatial resolution among all currently used microscopes. However, in order to achieve ultra-high resolution so that atoms can be observed directly, … Read more

Evidence for exotic magnetic phase of matter

Journal Reference: D. G. Mazzone, Y. Shen, H. Suwa, G. Fabbris, J. Yang, S.-S. Zhang, H. Miao, J. Sears, Ke Jia, Y. G. Shi, M. H. Upton, D. M. Casa, X. Liu, Jian Liu, C. D. Batista, M. P. M. Dean. Antiferromagnetic excitonic insulator state in Sr3Ir2O7. Nature Communications, 2022; 13 (1) DOI: 10.1038/s41467-022-28207-w “Broadly … Read more

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