Results 31 to 40 of about 215,504 (278)

Chiral phonon induced spin polarization

open access: yesPhysical Review Research, 2023
The current understanding of chirality suggests the existence of a connection between structure and angular momentum, including spin. This is particularly emphasized in the chiral induced spin selectivity effect, where chiral structures act as spin ...
J. Fransson
doaj   +1 more source

Gauge invariant Noether’s theorem and the proton spin crisis

open access: yesJournal of High Energy Physics, 2018
Due to proton spin crisis it is necessary to understand the gauge invariant definition of the spin and orbital angular momentum of the quark and gluon from first principle.
Gouranga C. Nayak
doaj   +1 more source

Special Issue on Novel Insights into Orbital Angular Momentum Beams: From Fundamentals, Devices to Applications

open access: yesApplied Sciences, 2019
It is well-known now that angular momentum carried by elementary particles can be categorized as spin angular momentum (SAM) and orbital angular momentum (OAM) [...]
Yang Yue   +4 more
doaj   +1 more source

High-Order Orbital and Spin Hall Effects at the Tight Focus of Laser Beams

open access: yesPhotonics, 2022
In this paper, using a Richards–Wolf method, which describes the behavior of electromagnetic waves at the sharp focus, we show that high-order spin and orbital Hall effects take place at the focal plane of tightly focused laser beams. We reveal that four
Victor V. Kotlyar   +3 more
doaj   +1 more source

Spin-orbit coupling and the conservation of angular momentum

open access: yes, 2012
In nonrelativistic quantum mechanics, the total (i.e. orbital plus spin) angular momentum of a charged particle with spin that moves in a Coulomb plus spin-orbit-coupling potential is conserved.
Al-Jaber S M   +14 more
core   +1 more source

On the transformations generated by the electromagnetic spin and orbital angular momentum operators

open access: yes, 2014
We present a study of the properties of the transversal "spin angular momentum" and "orbital angular momentum" operators. We show that the "spin angular momentum" operators are generators of spatial translations which depend on helicity and frequency and
Fernandez-Corbaton, Ivan   +2 more
core   +1 more source

Angular Momentum of Phonons and Einstein-de Haas Effect

open access: yes, 2014
We study angular momentum of phonons in a magnetic crystal. In the presence of a spin-phonon interaction, we obtain a nonzero angular momentum of phonons, which is an odd function of magnetization.
Niu, Qian, Zhang, Lifa
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Dynamical processes of vortex electrons in intense laser field

open access: yes上海师范大学学报. 自然科学版, 2023
In this paper, the dynamic processes of strong vortex electrons with inherent orbital angular momentum in intense laser are studied. The evolution of the intrinsic orbital and spin angular momentum of a vortex electron in a chirped laser field is studied
CHEN Jiading, CHEN Yueyue
doaj   +1 more source

The Angular Momenta of Neutron Stars and Black Holes as a Window on Supernovae [PDF]

open access: yes, 2011
It is now clear that a subset of supernovae display evidence for jets and are observed as gamma-ray bursts. The angular momentum distribution of massive stellar endpoints provides a rare means of constraining the nature of the central engine in core ...
Miller, J. M.   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy