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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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Spin relaxation with bistable precession
Physical Review A, 1991We study the effects of the reaction field on the spin relaxation. We find that they are not only responsible for a nonlinear friction process, as recently pointed out by several authors, but, in the case of sufficiently strong coupling, they also result in a bistable precession process.
P. GRIGOLINI, V. KENKRE, VITALI, David
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Photometry of Precessing Torses
Journal of the Optical Society of America, 1966The photometry of the flux received from a rotating, reflecting surface is developed. In cases where Lambert’s law of diffuse reflection holds, a self-conjugate photometric dyadic can be defined, which determines the received flux when the unit vector to the observer and the unit-vector to the source of collimated flux incident on the reflecting ...
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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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Physical Review Letters, 1996
In a recent study of Thomas precession of electron spin in the context of the Dirac equation, Shankar and Mathur identify the non-Abelian Berry potential (arising from Kramers degeneracy) with the meron. We point out that there is a global mathematical subtlety which prevents such an identification.
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In a recent study of Thomas precession of electron spin in the context of the Dirac equation, Shankar and Mathur identify the non-Abelian Berry potential (arising from Kramers degeneracy) with the meron. We point out that there is a global mathematical subtlety which prevents such an identification.
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Scanning Electron Diffraction: To Precess or not to Precess?
Microscopy and Microanalysis, 2023Tina Bergh +6 more
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European Journal of Physics, 1984
The coordinate-independent representation of four-vectors is used to throw light on the Thomas precession.
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The coordinate-independent representation of four-vectors is used to throw light on the Thomas precession.
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Phase precession in the human hippocampus and entorhinal cortex
Cell, 2021Salman E Qasim +2 more
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