Results 21 to 30 of about 93,269 (263)
Journal of Science: Advanced Materials and Devices, 2023 We explored a new helical spring magnet (HSM) concept using micromagnetic simulation along with analytical modeling. The present HSMs can be made of a single magnetic material or micro/nano-scale magnetic particles in a polymer matrix, which provides for
Jejune Lee +3 more
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Scientific Reports, 2023 Recently developed permanent magnets, featuring specially engineered microstructures of inhomogeneous magnetic phases, are being considered as cost-effective alternatives to homogeneous single-main-phase hard magnets composed of Nd2Fe14B, without ...
Hyeon-Kyu Park, Sang-Koog Kim
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Intrinsic DMI-free skyrmion formation and robust dynamic behaviors in magnetic hemispherical shells
Scientific Reports, 2021 We performed finite-element micromagnetic simulations to examine the formation of skyrmions without intrinsic Dzyaloshinskii–Moriya interaction (DMI) in magnetic hemispherical shells. We found that curvature-induced DM-like interaction allows for further
Jaehak Yang +3 more
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International Journal of Modern Physics A, 2003 Spin effects in exclusive and inclusive reactions provide an essential new dimension for testing QCD and unraveling hadron structure. Remarkable new experiments from SLAC, HERMES (DESY), and Jefferson Lab present many challenges to theory, including measurements at HERMES and SMC of the single spin asymmetries in ep → e′ π X where the proton is ...
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Dynamical spin-orbit-based spin transistor
SciPost Physics, 2023 Spin-orbit interaction (SOI) has been a key tool to steer and manipulate spin-dependent transport properties in two-dimensional electron gases. Here we demonstrate how spin currents can be created and efficiently read out in nano- or mesoscale conductors with time-dependent and spatially inhomogeneous Rashba SOI. Invoking an underlying non-Abelian SU(2)
Gürsoy, F. Nur +4 more
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Spin Dynamics and Spin Transport [PDF]
Journal of Superconductivity, 2005 Spin-orbit (SO) interaction critically influences electron spin dynamics and spin transport in bulk semiconductors and semiconductor microstructures. This interaction couples electron spin to dc and ac electric fields. Spin coupling to ac electric fields allows efficient spin manipulating by the electric component of electromagnetic field through the ...
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, 2023 Abstract This chapter is a general introduction to spin dynamics in beam lines and accelerators, and to resonant depolarization in cyclic accelerators.
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Fundamental Research, 2022 We perform an ab initio non-adiabatic molecular dynamics simulation to investigate the non-equilibrium spin and electron dynamics in a prototypical topological insulator (TI) Bi2Se3.
Chuanyu Zhao, Qijing Zheng, Jin Zhao
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Spin dynamics, critical scattering and magnetoelectric coupling mechanism of Mn4Nb2O9
New Journal of Physics, 2022 The spin dynamics of Mn _4 Nb _2 O _9 were studied using inelastic neutron scattering. A dynamic model is proposed to explain the observed spin-wave excitation spectrum from Mn _4 Nb _2 O _9 .
Guochu Deng +7 more
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Revisiting the Quantum Open System Dynamics of Central Spin Model
Quanta, 2021 In this work, we revisit the theory of open quantum systems from the perspective of fermionic baths. Specifically, we concentrate on the dynamics of a central spin half particle interacting with a spin bath. We have calculated the exact reduced dynamics
Samyadeb Bhattacharya +1 more
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