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Spin-glass-like behavior of uncompensated surface spins in NiO nanoparticulated powder
(ELSEVIER SCIENCE BVAMSTERDAM, 2013-08-02)
Nickel oxide nonoparticles successfully synthesized by a polymer percursor method are studied in this work. The analysis of X-ray powder diffraction data provides a mean crystallite size of 22 +/- 2 nm which is in a good ...
GREEN-FUNCTION FOR A SPIN-1/2 PARTICLE IN AN EXTERNAL PLANE-WAVE ELECTROMAGNETIC-FIELD
(Iop Publishing Ltd, 1991-05-21)
The Green function for a spin-1/2 charged particle in the presence of an external plane wave electromagnetic field is calculated by algebraic techniques in terms of the free-particle Green function.
Noncommutativity due to spin
(AMER PHYSICAL SOC, 2010)
Using the Berezin-Marinov pseudoclassical formulation of the spin particle we propose a classical model of spin noncommutativity. In the nonrelativistic case, the Poisson brackets between the coordinates are proportional ...
Thomson scattering revisited
(Revista Mexicana de Física, 2009)
Nonsymmetric tensor description of massive spin-2 particles in a curved background
(2017-03-30)
Massive spin-2 particles have been a subject of great interest in current research. If the graviton has a small mass, the gravitational force at large distances decreases more rapidly, which could contribute to the explanation ...
Classical spin dynamics of four interacting magnetic particles on a ring
(2008)
In the present work, we study the deterministic spin dynamics of four interacting magnetic particles, with both dipolar and exchange interactions in the presence of an applied magnetic field, by means of the Landau-Lifshitz ...
A note on the ubiquity of the traceless spin connection in dual massive spin-2 theories
(2016-03-11)
There are three families of second-order (in derivatives) models for massive spin-2 particles via a nonsymmetric rank-2 tensor. Each family depends upon an arbitrary real parameter. One of the families includes the usual ...
A velocity field and operator for spinning particles in (nonrelativistic) quantum mechanics
(Plenum Publ CorpNew YorkEUA, 1998)
Quantização de partículas com spin
(Universidade Estadual Paulista (Unesp), 2007-03-12)
Aclassical relativistic particleis described by means of Dirac's formalism for constrained systems, where the constraints come from the reparametrization invariance required by an explicitly covariant theory. We introduce ...