Results 51 to 60 of about 4,086,018 (300)

A special perturbation method in orbital dynamics [PDF]

open access: yesCelestial Mechanics and Dynamical Astronomy, 2006
Bead models are used in dynamical simulation of tethers. These models discretize a cable using beads distributed along its length. The time evolution is obtained nu- merically. Typically the number of particles ranges between 5 and 50, depending on the required accuracy. Sometimes the simulation is extended over long periods (several years).
Peláez Álvarez, Jesús   +2 more
openaire   +3 more sources

Strong variation of spin-orbit torques with relative spin relaxation rates in ferrimagnets

open access: yesNature Communications, 2023
There has been a lot of interest in using antiferromagnets for magnetic memories, due to their fast dynamics, and resilience to stray fields. Such a memory was supposed to be switched by a spin-orbit torque. Here, Zhu and Ralph find that as a ferrimagnet
Lijun Zhu, Daniel C. Ralph
doaj   +1 more source

Halo orbit dynamics and properties for a lunar global positioning system design

open access: yes, 2014
In this paper, the use of north and south families of halo orbits, around the L 1 and L 2 collinear libration points of the Earth–Moon system, to realize a lunar global positioning system (LGPS) is proposed.
C. Circi, D. Romagnoli, Federico Fumenti
semanticscholar   +1 more source

Probing a regular orbit with spectral dynamics [PDF]

open access: yes, 1999
We have extended the spectral dynamics formalism introduced by Binney & Spergel, and have implemented a semi-analytic method to represent regular orbits in any potential, making full use of their regularity.
Arnold   +31 more
core   +2 more sources

Meta-orbital Transition in Heavy-fermion Systems: Analysis by Dynamical Mean Field Theory and Self-consistent Renormalization Theory of Orbital Fluctuations [PDF]

open access: yes, 2010
We investigate a two-orbital Anderson lattice model with Ising orbital intersite exchange interactions by means of dynamical mean field theory combined with the static mean field approximation of the intersite orbital interactions. Focusing on Ce-based heavy-fermion compounds, we examine the orbital crossover between the two orbital states, when the ...
arxiv   +1 more source

Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems [PDF]

open access: yesReviews of Modern Physics, 2018
Spin-orbit coupling in inversion-asymmetric magnetic crystals and structures has emerged as a powerful tool to generate complex magnetic textures, interconvert charge and spin under applied current, and control magnetization dynamics.
A. Manchon   +7 more
semanticscholar   +1 more source

Features of Microwave Magnetic Dynamics in Nanostructures with Strong Spin–Orbit Interaction

open access: yesУспехи физики металлов, 2016
Features of the current spin–orbit induced magnetic dynamics in multilayer nanostructures with nonmagnetic heavy metal layers possessing by a strong spin–orbit interaction are studied.
A. M. Korostil, M. M. Krupa
doaj   +1 more source

Observation of orbital pumping [PDF]

open access: yesarXiv, 2023
Harnessing spin and orbital angular momentum is a fundamental concept in condensed matter physics, materials science, and quantum-device applications. In particular, the search for new phenomena that generate a flow of spin angular momentum, a spin current, has led to the development of spintronics, advancing the understanding of angular momentum ...
arxiv  

On the Effect of Chaotic Orbits on Dynamical Friction [PDF]

open access: yesThe Astrophysical Journal, 2001
Chaotic orbits suffer significant changes as a result of small perturbations. One can thus wonder whether the dynamical friction suffered by a satellite on a regular orbit, and interacting with the stars of a galaxy, will be different if the bulk of the stars of the galaxy are in regular or chaotic orbits.
Cora, Sofia Alejandra   +2 more
openaire   +4 more sources

Ground States and Dynamics of Spin-Orbit-Coupled Bose-Einstein Condensates [PDF]

open access: yesSIAM Journal on Applied Mathematics, 2014
We study analytically and asymptotically, as well as numerically, ground states and dynamics of two-component spin-orbit-coupled Bose--Einstein condensates (BECs) modeled by the coupled Gross--Pitaevskii equations (CGPEs).
W. Bao, Yongyong Cai
semanticscholar   +1 more source

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