Results 331 to 340 of about 623,579 (384)

Eye, magnetism and magnets

British Journal of Ophthalmology, 2014
Mankind has always been familiar with the magnetism or drawing power of the eyes. Eye contact between mother and child is a strong force in bonding between the two. Eye contact is also the initial signal of attraction between two individuals, triggering special emotions especially if the attraction is mutual.
Richard, Keeler, Arun D, Singh, Arun D, Dua   +2 more
openaire   +2 more sources

Ultrafast phononic switching of magnetization

Nature Physics, 2020
Identifying efficient pathways to control and modify the order parameter of a macroscopic phase in materials is an important ongoing challenge. One way to do this is via the excitation of a high-frequency mode that couples to the order, and this is the ...
A. Stupakiewicz, C. Davies, K. Szerenos, D. Afanasiev, K. Rabinovich, A. Boris, A. Caviglia, A. Kimel, A. Kirilyuk   +8 more
semanticscholar   +1 more source

Recent Advances in Magnetization Roasting of Refractory Iron Ores: A Technological Review in the Past Decade

Mineral Processing and Extractive Metallurgy Review, 2020
Improving utilization efficiency of refractory iron ore resources is a common theme for the sustainable development of the world’s steel and iron industry.
Jianwen Yu, Yue-xin Han, Yan-jun Li, Peng Gao   +3 more
semanticscholar   +1 more source

Noncentrosymmetric Magnets Hosting Magnetic Skyrmions

Advanced Materials, 2017
The concept of a skyrmion, which was first introduced by Tony Skyrme in the field of particle physics, has become widespread in condensed matter physics to describe various topological orders. Skyrmions in magnetic materials have recently received particular attention; they represent vortex‐like spin structures with the character of nanometric ...
Naoya, Kanazawa, Shinichiro, Seki, Yoshinori, Tokura   +2 more
openaire   +2 more sources

Covalent magnetism and magnetic impurities

Journal of Physics: Condensed Matter, 2013
We use the model of covalent magnetism and its application to magnetic insulators applied to the case of insulating carbon doped BaTiO3. Since the usual Stoner mechanism is not applicable we study the possibility of the formation of magnetic order based on a mechanism favoring singly occupied orbitals.
C, Gruber, P O, Bedolla, P, Mohn
openaire   +2 more sources

Magnetization switching by spin-orbit torque in an antiferromagnet-ferromagnet bilayer system.

Nature Materials, 2015
Spin-orbit torque (SOT)-induced magnetization switching shows promise for realizing ultrafast and reliable spintronics devices. Bipolar switching of the perpendicular magnetization by the SOT is achieved under an in-plane magnetic field collinear with an
S. Fukami, Chaoliang Zhang, S. DuttaGupta, A. Kurenkov, H. Ohno   +4 more
semanticscholar   +1 more source

Tweezing of Magnetic and Non‐Magnetic Objects with Magnetic Fields

Advanced Materials, 2017
Although strong magnetic fields cannot be conveniently “focused” like light, modern microfabrication techniques enable preparation of microstructures with which the field gradients – and resulting magnetic forces – can be localized to very small dimensions.
Timonen, Jaakko V I, Grzybowski, Bartosz, A.   +2 more
openaire   +3 more sources

Magnetism without magnets

IEEE Spectrum, 1991
The earliest discoveries of electromagnetism are briefly recounted. The work of Volta (primary battery), Oersted (generating a magnetic field by a current) and Ampere (solenoid) is described. >
openaire   +1 more source

Persistent magnetic coherence in magnets

Nature Materials
When excited, the magnetization in a magnet precesses around the field in an anticlockwise manner on a timescale governed by viscous magnetization damping, after which any information carried by the initial actuation seems to be lost. This damping appears to be a fundamental bottleneck for the use of magnets in information processing.
T. Makiuchi, T. Hioki, H. Shimizu, K. Hoshi, M. Elyasi, K. Yamamoto, N. Yokoi, A. A. Serga, B. Hillebrands, G. E. W. Bauer, E. Saitoh   +10 more
openaire   +2 more sources

Switching of perpendicular magnetization by spin-orbit torques in the absence of external magnetic fields.

Nature Nanotechnology, 2013
Magnetization switching by current-induced spin-orbit torques is of great interest due to its potential applications in ultralow-power memory and logic devices. The switching of ferromagnets with perpendicular magnetization is of particular technological
Guoqiang Yu, P. Upadhyaya, Yabin Fan, J. G. Alzate, Wanjun Jiang, Kin L. Wong, S. Takei, S. Bender, Li-Te Chang, Ying Jiang, M. Lang, Jianshi Tang, Yong Wang, Y. Tserkovnyak, P. Amiri, Kang L. Wang   +15 more
semanticscholar   +1 more source