A special perturbation method in orbital dynamics [PDF]
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
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
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]
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]
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]
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
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]
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]
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]
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