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Spinning particles coupled to gravity and the validity of the universality of free fall
(IOP Publishing, 2017-06-08)
Recent experimental work has determined that free falling Rb-87 atoms on Earth, with vertically aligned spins, follow geodesics, thus apparently ruling out spin-gravitation interactions. It is showed that while some spinning ...
Spin-Wave Amplification and Lasing Driven by Inhomogeneous Spin-Transfer Torques
(American Physical Society, 2019)
We show that an inhomogeneity in the spin-transfer torques in a metallic ferromagnet under suitable conditions strongly amplifies incoming spin waves. Moreover, at nonzero temperatures the incoming thermally occupied spin ...
Quantum theory of spin waves in finite chiral spin chains
(American Physical Society, 2014)
We calculate the effect of spin waves on the properties of finite-size spin chains with a chiral spin ground
state observed on biatomic Fe chains deposited on iridium(001). The system is described with a Heisenberg
model ...
Spin Trapping: An Essential Tool for the Study of Diseases Caused by Oxidative Stress
(Bentham Science Publ, 2015)
Electron spin resonance (ESR), called also electron paramagnetic resonance (EPR) together with the spin trapping technique, has allowed us to study and understand how free radicals are involved in various pathologies. In ...
Dynamic properties of a classical anisotropic Heisenberg chain under external magnetic field
(ELSEVIER SCIENCE BV, 2005-01-31)
We investigate the dynamic properties of a classical anisotropic Heisenberg chain interacting with an external magnetic field at different temperatures. Properties such as time-dependent energy autocorrelation and space-time ...
Spin wave modes of two magnetostatic coupled spin transfer torque nano-oscillators
(American Institute of Physics Inc., 2018)
A detailed analytical and numerical study of the spin wave modes of two nanopillar spin torque nano-oscillators coupled by magnetostatic interactions is presented under the macrospin approximation. Results show that the ...
Spin wave vortex from the scattering on Bloch point solitons
(Elsevier, 2015)
The interaction of a spin wave with a stationary Bloch point is studied. The topological non-trivial structure of the Bloch point manifests in the propagation of spin waves endowing them with a gauge potential that resembles ...
Configurational temperature in constrained systems: The case of spin dynamics
(Institute of Physics Publishing, 2018)
© 2018 IOP Publishing Ltd. A general mathematical expression to estimate the temperature in computer simulations of constrained systems is obtained. Using a recently derived theorem which relates the ensemble average of ...
Applications of electron spin resonance and spin trapping in tropical parasitic diseases
(2006)
Free radicals may be reaction intermediates in biological systems in more situations than are presently recognized. However, progress in detecting such species by Electron Spin Resonance (ESR) has been relatively slow. ESR ...
Electron spin resonance studies in acrylamide polymerization using rhenium complexes as photosensitizers
(SOCIEDAD CHILENA DE QUIMICA, 2002-09)
Acrylamide can be polymerized using new catalytic systems. These are based on rhenium complexes as photosensitizers with triethylamine (TEA). Electron Spin Resonance (ESR) was used for the detection of radicals species ...