Results 281 to 290 of about 145,673 (323)
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Electronic spin transport and spin precession in single graphene layers at room temperature
Nature, 2007Electronic transport in single or a few layers of graphene is the subject of intense interest at present. The specific band structure of graphene, with its unique valley structure and Dirac neutrality point separating hole states from electron states ...
N. Tombros +4 more
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Distinct roles for precession, obliquity, and eccentricity in Pleistocene 100-kyr glacial cycles.
ScienceIdentifying the specific roles of precession, obliquity, and eccentricity in glacial-interglacial transitions is hindered by imprecise age control. We circumvent this problem by focusing on the morphology of deglaciation and inception, which we show ...
Stephen Barker +4 more
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, 2020
The response of the climate system to astronomical parameters is an important scientific issue, but the internal processes and feedbacks need to be better understood.
Zhipeng Wu +3 more
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The response of the climate system to astronomical parameters is an important scientific issue, but the internal processes and feedbacks need to be better understood.
Zhipeng Wu +3 more
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Precession Electron Diffraction
2012Precession electron diffraction (PED) is a key technique available to electron microscopists to elucidate the structure of inorganic crystals. A PED pattern is formed by the summation of a series of diffraction patterns whose incoming beam is tilted with respect to the optic axis.
Eggeman, Alexander S., Midgley, Paul A.
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American Journal of Physics, 1969
The motion of a nucleus with an intrinsic multiple moment, in particular an intrinsic hexadecapole (16 poles) moment in external electrostatic multiple (triple) field gradients, is studied from a classical point of view. It is shown that in the classical approximation the angular-momentum vector of a nucleus with an intrinsic hexadecapole moment may ...
David S. Moroi, Phillip O. Berge
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The motion of a nucleus with an intrinsic multiple moment, in particular an intrinsic hexadecapole (16 poles) moment in external electrostatic multiple (triple) field gradients, is studied from a classical point of view. It is shown that in the classical approximation the angular-momentum vector of a nucleus with an intrinsic hexadecapole moment may ...
David S. Moroi, Phillip O. Berge
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Overview of the Cosmic Axion Spin Precession Experiment (CASPEr)
Microwave Cavities and Detectors for Axion Research, 2017An overview of our experimental program to search for axion and axion-like-particle (ALP) dark matter using nuclear magnetic resonance (NMR) techniques is presented.
D. J. Kimball +18 more
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The geodetic precession as a 3D Schouten precession and a gravitational Thomas precession
Canadian Journal of Physics, 2014The Gravity Probe B (GP-B) experiment measured the geodetic precession due to parallel transport in a curved space–time metric, as predicted by de Sitter, Fokker, and Schiff. The Schiff treatment included Thomas precession and argued that it should be zero in a free fall orbit.
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American Journal of Physics, 1996
Inertial frames of reference and nonrotating frames of reference are discussed. Using geometric algebra as the principal mathematical tool, the Thomas precession of torque-free gyroscopes in special relativity is then derived in an exact fashion in two different ways. First, the equations of Fermi–Walker transport are employed to derive expressions for
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Inertial frames of reference and nonrotating frames of reference are discussed. Using geometric algebra as the principal mathematical tool, the Thomas precession of torque-free gyroscopes in special relativity is then derived in an exact fashion in two different ways. First, the equations of Fermi–Walker transport are employed to derive expressions for
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American Journal of Physics, 1965
The path described by a rolling truncated sphere is shown to be an equiangular spiral. An undergraduate laboratory experiment is described in which this motion is studied.
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The path described by a rolling truncated sphere is shown to be an equiangular spiral. An undergraduate laboratory experiment is described in which this motion is studied.
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Simulations of Precessing Jets
2003We report on the results of a three-dimensional, relativistic, hydrodynamical simulation of a precessing jet through which a compact blob of matter is set to propagate. We conclude that the morphology of superluminal sources is the result of a complex combination of phase motions, viewing angle selection effects, and non-linear interactions between ...
Aloy, M. +5 more
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