Results 51 to 60 of about 3,049,338 (225)

Magnetic Field Simulation of Demagnetization Process in Complex Ferromagnetic Cavity Structures

Applied Sciences
The time-varying magnetic field characteristics during the demagnetization process of complex ferromagnetic cavity structures were studied based on computational electromagnetic simulation.
Tao Guo, Chengjin Lu, Meng Chen
doaj   +1 more source

Giant Anisotropic Spin Absorption in Chiral Hybrid Semiconductors

Advanced Materials, EarlyView.
Researchers uncover that chiral hybrid organic–inorganic semiconductors absorb spin differently depending on its polarization direction. This anisotropic spin absorption is primarily driven by the local symmetry breaking within the layered structure.
Cong Yang, Rui Sun, Mingwei Ge, Shehzad Khan, Subhrangsu Mukherjee, Matthew P. Hautzinger, Tianyou Lu, Harald Ade, Pius M. Theiler, Matthew C. Beard, Dali Sun, Mengxia Liu, Jun Liu   +12 more
wiley   +1 more source

Multi-Field Coupling Analysis and Demagnetization Experiment of Permanent Magnet Retarder for Heavy Vehicles (MAY 2018)

IEEE Access, 2019
A new permanent magnet retarder (PMR), which based on the principle of eddy-current braking, is proposed as an auxiliary braking apparatus for heavy vehicles. Its braking torque can be stepless adjusted by the adjustment mechanism.
Lezhi Ye, Mingguang Cao, Yupeng Liu, Desheng Li   +3 more
doaj   +1 more source

Demagnetization dynamics after noncollinear dual optical excitation

Physical Review B
Published by Inst., Woodbury ...
Parchenko, Sergii, Riepp, Matthias, Marotzke, Simon, Åberg Larsson, Agne, Kapaklis, Vassilios, Oppeneer, Peter, Scherz, Andreas   +6 more
openaire   +3 more sources

Demagnetization‐Driven Nanoscale Chirality‐Selective Phonon Transport

Advanced Materials, EarlyView.
Chiral heat flow is switched in a ferromagnet/chiral α‐SiO2 heterostructure by controlling the angular momentum of demagnetization‐driven chiral phonons. When phonon handedness matches the crystal chirality, nanoscale thermal transport is enhanced; the opposite handedness suppresses transport, establishing a magnetization‐tunable chiral phonon diode ...
In Hyeok Choi, Daeheon Kim, Yeon Jong Jin, Seungmo Yang, Tae‐Seong Ju, Changsoo Kim, Chanyong Hwang, Dongbin Shin, Jong Seok Lee   +8 more
wiley   +1 more source

Charge and spin current pumping by ultrafast demagnetization dynamics

Physical Review B
The surprising discovery of ultrafast demagnetization -- where electric field of femtosecond laser pulse couples to electrons of a ferromagnetic (FM) layer causing its magnetization vector {\em to shrink while not rotating}, is also assumed to be accompanied by generation of spin current in the direction orthogonal to electric field.
Jalil Varela-Manjarres, Ali Kefayati, M. Benjamin Jungfleisch, John Q. Xiao, Branislav K. Nikolić   +4 more
openaire   +2 more sources

Helicity‐Dependent All‐Optical Switching in Bi,Ga‐Substituted Rare‐Earth Iron Garnet Films Driven by Orbital Magnetic Moment

Advanced Optical Materials, EarlyView.
Helicity‐dependent all‐optical magnetization switching was demonstrated for the Bi‐ and Ga‐substituted rare‐earth (R) iron garnet crystal thin films (Bi,Ga:RIG; R = Eu3+, Nd3+, and Y3+). The efficiency followed the order EIG > NIG > YIG. These results show the correlation between 4f orbital moment (4f〈L〉) of R3+ and helicity‐dependent optical ...
Ayumu Hata, Ryuichiro Asatani, Saiki Suzuki, Md Abdullah Al Masud, Hotaka Sakaguchi, Jun Okabayashi, Shinji Isogami, Takayuki Ishibashi   +7 more
wiley   +1 more source

Ultrafast transient dynamics in composite multiferroics

New Journal of Physics, 2016
We investigate theoretically the dynamic multiferroic (MF) response of coupled ferroelectric (FE)/ferromagnetic (FM) composites upon excitation by a photo-induced acoustic strain pulse. Two magnetoelectric (ME) mechanisms are considered: interface strain-
Chenglong Jia, Ning Zhang, Alexander Sukhov, Jamal Berakdar   +3 more
doaj   +1 more source

Nonlocal ultrafast demagnetization dynamics of Co/Pt multilayers by optical field enhancement

New Journal of Physics, 2015
The influence on ultrafast demagnetization dynamics of metallic nano-structured gratings deposited on thin films of magnetic Co/Pt multilayers is investigated by the time-resolved optical Kerr effect. Depending on the polarization of the pump pulse, a pronounced enhancement of the demagnetization amplitude is found.
Korff Schmising, Clemens von, Giovannella, M., Weder, David, Schaffert, Stefan, Webb, J. L., Eisebitt, Stefan   +5 more
openaire   +4 more sources

Degradable Magnetic Composites from Recycled NdFeB Magnets for Soft Actuation and Sensing

Advanced Robotics Research, EarlyView.
This work presents a degradable soft magnetic composite made from recycled NdFeB particles embedded in a gelatin‐based organogel. The material is processed into magnetic sensors and soft robotic components, which can later be dissolved in a green solvent to recover NdFeB magnetic particles.
Muhammad Bilal Khan, Lin Guo, Kilian Schäfer, Eduardo Sergio Oliveros‐Mata, Xiaotao Wang, Florian Hofmann, Matthias Lutzi, Mark Suppelt, Proloy Taran Das, Jan Schmidtpeter, Imants Dirba, Stephan Rinderknecht, Mario Kupnik, Denys Makarov, Oliver Gutfleisch   +14 more
wiley   +1 more source