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Title: Fedorov pseudosymmetry of crystals: Review

Abstract

Fedorov (i.e., compatible with a crystal lattice) pseudosymmetry of atomic crystal structures, quantitative methods for its evaluation, and the effect of pseudosymmetric features of the structure of crystals on their physical properties are described. Application of crystallographic methods for evaluating pseudosymmetry to environmental monitoring is considered.

Authors:
 [1]
  1. Nizhni Novgorod State University (Russian Federation), E-mail: Chuprunov@phys.unn.ru
Publication Date:
OSTI Identifier:
21091397
Resource Type:
Journal Article
Resource Relation:
Journal Name: Crystallography Reports; Journal Volume: 52; Journal Issue: 1; Other Information: DOI: 10.1134/S1063774507010014; Copyright (c) 2007 Nauka/Interperiodica; Article Copyright (c) 2007 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CRYSTAL LATTICES; CRYSTALLOGRAPHY; CRYSTALS; PHYSICAL PROPERTIES; REVIEWS

Citation Formats

Chuprunov, E. V. Fedorov pseudosymmetry of crystals: Review. United States: N. p., 2007. Web. doi:10.1134/S1063774507010014.
Chuprunov, E. V. Fedorov pseudosymmetry of crystals: Review. United States. doi:10.1134/S1063774507010014.
Chuprunov, E. V. Thu . "Fedorov pseudosymmetry of crystals: Review". United States. doi:10.1134/S1063774507010014.
@article{osti_21091397,
title = {Fedorov pseudosymmetry of crystals: Review},
author = {Chuprunov, E. V.},
abstractNote = {Fedorov (i.e., compatible with a crystal lattice) pseudosymmetry of atomic crystal structures, quantitative methods for its evaluation, and the effect of pseudosymmetric features of the structure of crystals on their physical properties are described. Application of crystallographic methods for evaluating pseudosymmetry to environmental monitoring is considered.},
doi = {10.1134/S1063774507010014},
journal = {Crystallography Reports},
number = 1,
volume = 52,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}
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  • A unified theory is advanced to describe both the lateral Goos-Haenchen (GH) effect and the transverse Imbert-Fedorov (IF) effect, through representing the vector angular spectrum of a three-dimensional light beam in terms of a two-form angular spectrum consisting of its two orthogonal polarized components. From this theory, the quantization characteristics of the GH and IF displacements are obtained, and the Artmann formula for the GH displacement is derived. It is found that the eigenstates of the GH displacement are the two orthogonal linear polarizations in this two-form representation, and the eigenstates of the IF displacement are the two orthogonal circularmore » polarizations. The theoretical predictions are found to be in agreement with recent experimental results.« less
  • We study the Imbert–Fedorov (IF) shifts of a reflected Gaussian beam from uniaxially anisotropic chiral media (UACM), where the chirality appears only in one direction and the host medium is a uniaxial crystal or an electric plasma. The numerical results are presented for three kinds of UACM, respectively. It is found that the IF shifts are closely related to the propagation properties of the two eigenwaves in the UACM. In general, when either of the eigenwaves is totally reflected, the IF shifts can change abruptly near the critical angle. The cross-polarized reflection coefficient has a greater effect on the spatialmore » IF (SIF) shift than on the angular IF (AIF) shift, and the sign of the AIF shift depends mainly on that of the difference between the co-polarized reflectivity. By designing artificially the electromagnetic parameters of the UACM, we can control the IF shifts and acquire their more abundant properties. -- Highlights: •We discuss the IF shifts of a beam reflected from a uniaxially anisotropic chiral medium interface. •The shifts can abruptly change near the critical angle of incidence. •The cross-polarized reflection coefficient has a greater effect on the spatial shift than on the angular shift. •The sign of the angular shift depends only on that of the difference between the co-polarized reflectivity. •The crossovers of the shifts can be realized between positive and negative.« less
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