Results 81 to 90 of about 21,402 (315)

Magnetic Domain Structure and Coercivity Distribution for Patterned DyFeCo Thin Films

, 2014
[[abstract]]The coercivity of patterned magnetooptical (MO) thin film media is quite different from that of nonpatterned samples. During the demagnetization process, we observed the sample's magnetic domain motion and structures.
Ye, L. X. ; Lee, J. M. ; Wu, Jong-Ching; Wu, Te-Ho
core  

Effect of Rare-Earth Content on Coercivity and Temperature Stability of Sintered Nd-Fe-B Magnets Prepared by Dual-Alloy Method

, 2013
The influence of rare earth content on coercivity and temperature stability with dual-alloy method has been investigated. It is found that the coercivity of magnets increases rapidly firstly and then slightly with the increasing of rare earth content ...
Lee, Don, Liu, Xincai, Fu, Wenbiao, Guo, Shuai, Lin, Chaowei, Yan, AR, Chen, Renjie, Yan, Aru   +7 more
core   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source

Nb-doping Induced High Coercivity in Pr2Fe14B/α-Fe Nanocomposite Melt-spun Ribbons

Medžiagotyra
The effect of niobium (Nb) doping on the microstructure and magnetic properties of as-spun Pr10Fe82.5-xB6.5Nbx ribbons was investigated. Nb doping significantly refines the grain size and enhances the coercivity, which increases from 380 kA/m (x = 0) to ...
Shuang FU, Mehran Khan ALAM, Guangbing HAN, Shishou KANG   +3 more
doaj   +1 more source

Anisotropic Sm2Fe17N3 sintered magnets without coercivity deterioration

, 2016
In order to solve the problem of coercivity decrease during sintering, we developed a low-oxygen process capable of producing sintered compacts while avoiding oxidization.
Wataru Yamaguchi, Kenta Takagi, Miho Jinno, Rikio Soda, Kimihiro Ozaki   +4 more
core   +1 more source

Measuring the Hall Effect in Hysteretic Materials

Advanced Materials, EarlyView.
The authors highlight common pitfalls in measuring the Hall effect: in hysteretic magnets, improper data processing can create signals that look exotic but are not real. This Perspective explains the origin of these artifacts and presents practical measurement strategies that help researchers identify reliable Hall responses in complex magnetic ...
Jaime M. Moya, Anthony Voyemant, Sudipta Chatterjee, Scott B. Lee, Grigorii Skorupskii, Connor J. Pollak, Leslie M. Schoop   +6 more
wiley   +1 more source

Weak In‐Plane Ferromagnetism and Electronic Nematicity in the Distorted Triple‐Q Magnetic Phase of Co1/3TaS2

Advanced Materials, EarlyView.
Co1/3TaS2${\rm Co}_{1/3}{\rm TaS}_{2}$ hosts a triple‐Q noncoplanar antiferromagnetic state with coexisting Z3${\rm Z}_3$ electronic nematicity. We report rotational hysteresis observed in both magnetoresistance and magnetic torque, revealing strongly pinned in‐plane weak ferromagnetic moments in the triple‐Q phase and the magnetism‐driven nature of ...
Joonyoung Choi, Woonghee Cho, Pyeongjae Park, Woun Kang, Je‐Geun Park, Younjung Jo   +5 more
wiley   +1 more source

Multiple solutions for semilinear elliptic boundary value problems at resonance

Electronic Journal of Differential Equations, 1995
successful in proving the existence of weak solutions for semilinear elliptic boundary value problems at resonance. One technique involves a variational approach where solutions are characterized as saddle points for a related functional.
Steve B. Robinson
doaj  

Phase Formation and Magnetic Properties of (Y_1−xSm_x)Co₅ Melt-Spun Ribbons

Metals
Using X-ray diffraction (XRD) and a vibrating sample magnetometer (VSM), the effects of Sm substitution, wheel speed, and annealing temperature on the phase formation and magnetic properties of (Y1−xSmx)Co5 (x = 0.2, 0.3, 0.4, 0.5) melt-spun ribbons were
Xiang Liu, Siyue Yang, Xingping Zheng, Feilong Dai, Qingrong Yao, Jiang Wang   +5 more
doaj   +1 more source

Geometric Shape Dependence of Coercivity for Patterned Magnetic Thin Film

, 2014
[[abstract]]The micro-strips with patterned magnetic domains using electron beam lithography have been made to study the geometric shape dependence of coercivity. The size of the micro-strip is 10 μm×30 μm with 0.5 μm periods hole arrays pattern.
Wu, Te-Ho; Wu, Jong-Ching; Wu, C. S. ; Chen, Bing-Mau; Shieh, Han-Ping D.
core