Results 11 to 20 of about 9,673 (258)

Indirect excitation of ultrafast demagnetization [PDF]

Scientific Reports, 2016
AbstractDoes the excitation of ultrafast magnetization require direct interaction between the photons of the optical pump pulse and the magnetic layer? Here, we demonstrate unambiguously that this is not the case. For this we have studied the magnetization dynamics of a ferromagnetic cobalt/palladium multilayer capped by an IR-opaque aluminum layer ...
Boris, Vodungbo, Bharati, Tudu, Bahrati, Tudu, Jonathan, Perron, Renaud, Delaunay, Leonard, Müller, Magnus H, Berntsen, Gerhard, Grübel, Grégory, Malinowski, Christian, Weier, Julien, Gautier, Guillaume, Lambert, Philippe, Zeitoun, Christian, Gutt, Emmanuelle, Jal, Alexander H, Reid, Patrick W, Granitzka, Nicolas, Jaouen, Georgi L, Dakovski, Stefan, Moeller, Michael P, Minitti, Ankush, Mitra, Sebastian, Carron, Bastian, Pfau, Clemens, von Korff Schmising, Michael, Schneider, Stefan, Eisebitt, Jan, Lüning   +27 more
openaire   +8 more sources

Thermal Demagnetization Characteristics of NdFeB Used in Eddy Current Dampers

IEEE Access
With continuously improving NdFeB magnetic properties, eddy current dampers using NdFeB materials as energy sources can be used in places with high energy consumption densities.
Yuxin Yang, Lei Li, He Zhang
doaj   +2 more sources

Magnetization dependent demagnetization characteristic of rare-earth permanent magnets [PDF]

Archives of Electrical Engineering, 2019
Accurate demagnetization modelling is mandatory for a reliable design of rare-earth permanent magnet applications, such as e.g. synchronous machines. The magnetization of rare-earth permanent magnets requires high magnetizing fields.
Gregor Bavendiek, Fabian Müller, Jamshid Sabirov, Kay Hameyer   +3 more
doaj   +2 more sources

Demagnetization Effect in a Meander-Core Orthogonal Fluxgate Sensor

Micromachines, 2021
Demagnetization effect plays an important role in the magnetic core design of the orthogonal fluxgate sensor. In this paper, a meander-core orthogonal fluxgate sensor based on amorphous ribbon is described.
Shaotao Zhi, Xuecheng Sun, Qiaozhen Zhang, Jie Chen, Xiangfen Zhang, Hongyu Chen, Chong Lei   +6 more
doaj   +2 more sources

Pressure demagnetization: Electromagnetism meets thermodynamics

AIP Advances
By pressure demagnetization, take iron as an example, we mean either that, given an external magnetic field under a certain temperature, the magnetization becomes weaker as the pressure increases, which can be referred to as pressure demagnetization ...
S. F. Xiao, H. Zhao, Y. X. Wei, J. Z. Tan, Q. H. Liu   +4 more
doaj   +2 more sources

Dependence of Demagnetization Quality of Ferromagnetic Bodies on Frequency Relationship and Duration of Demagnetization Process

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2007
Experiments have revealed that demagnetization quality of ferromagnetic bodies depends on characteristics of demagnetizing field that are determined by their size and internal properties.
R. R. Moroz
doaj   +1 more source

The Demagnetization Plane : A new method for presenting stepwise demagnetization [PDF]

Geoscience reports of Shizuoka University, 1994
A new method using a "Demagnetization Plane" is proposed to present the results of stepwise demagnetization of remanent magnetization. This method facilitates quantitative analysis of stepwise demagnetization results, allowing distinction between the ...
80005818, Niitsuma, Nobuaki, Niitsuma Nobuaki, 181, 4af875ea-798e-4c86-a0cf-b8ffad3cbf29   +4 more
openaire   +2 more sources

Demagnetization data

, 2022
Demagnetization data produced by AF demagnetization of archive half core sections from IODP Site U1438 (Holes B, D, and E). The format is in LDGO which can be viewed using the MacPaleomag software (written by Geff Gee).
Marco Maffione (11572117), Antony Morris (10060582)   +1 more
core   +1 more source

Magnetic design and testing of demagnetization facility with ring-shaped coil

Zhongguo Jianchuan Yanjiu, 2018
[Objectives] In order to achieve the fast and high quality demagnetization of ships,a new demagnetization technique adopting a ring-shaped working coil is proposed.
GUO Chengbao, ZHOU Weichang
doaj   +1 more source

Disambiguation of Uniform Demagnetization Fault From Position Sensor Fault in FOC PMSM Applications

IEEE Access, 2022
Electrification of higher torque density applications in the transportation sector and robotics sector are primarily met with permanent magnet synchronous machines (PMSMs), attributing to their unique properties.
Sandun S. Kuruppu, Sunil G. Abeyratne
doaj   +1 more source