Symmetry properties of the polarizability matrix of an inhomogeneous electron gas

1989 ◽  
Vol 32 (6) ◽  
pp. 479-483
Author(s):  
V. G. Tyuterev
Keyword(s):  
Electron Gas ◽  
Symmetry Properties ◽  
Polarizability Matrix

scholarly journals RENORMALIZED LANDAU LEVELS AND PARTICLE-HOLE SYMMETRY IN GRAPHENE

2009 ◽  
Vol 23 (12n13) ◽  
pp. 2634-2640 ◽  
Author(s):  
YAFIS BARLAS ◽  
WEI-CHENG LEE ◽  
KENTATO NOMURA ◽  
ALLAN H. MACDONALD
Keyword(s):  
Magnetic Field ◽  
Band Structure ◽  
Landau Level ◽  
Continuum Model ◽  
Electron Gas ◽  
Landau Levels ◽  
Regularization Procedure ◽  
Hartree Fock ◽  
Symmetry Properties ◽  
Self Consistent

In this proceedings paper we report on a calculation of graphene's Landau levels in a magnetic field. Our calculations are based on a self-consistent Hartree-Fock approximation for graphene's massless-Dirac continuum model. We find that because of graphene's chiral band structure interactions not only shift Landau-level energies, as in a non-relativistic electron gas, but also alter Landau level wavefunctions. We comment on the subtle continuum model regularization procedure necessary to correctly maintain the lattice-model's particle hole symmetry properties.

Semi-automated methods for 3-D reconstruction of macromolecular complexes

1995 ◽  
Vol 53 ◽  
pp. 42-43
Author(s):  
B. Carragher ◽  
M. Whittaker
Keyword(s):  
Three Dimensional ◽  
Time Saving ◽  
Macromolecular Complexes ◽  
Symmetry Properties ◽  
Dimensional Reconstruction ◽  
Experienced Operator ◽  
Projection Images ◽  
The Individual ◽  
Natural Symmetry

Techniques for three-dimensional reconstruction of macromolecular complexes from electron micrographs have been successfully used for many years. These include methods which take advantage of the natural symmetry properties of the structure (for example helical or icosahedral) as well as those that use single axis or other tilting geometries to reconstruct from a set of projection images. These techniques have traditionally relied on a very experienced operator to manually perform the often numerous and time consuming steps required to obtain the final reconstruction. While the guidance and oversight of an experienced and critical operator will always be an essential component of these techniques, recent advances in computer technology, microprocessor controlled microscopes and the availability of high quality CCD cameras have provided the means to automate many of the individual steps.During the acquisition of data automation provides benefits not only in terms of convenience and time saving but also in circumstances where manual procedures limit the quality of the final reconstruction.

Symmetry properties of a universal interaction

Physica ◽  
1952 ◽  
Vol 18 (2) ◽  
pp. 1017-1019 ◽  
Author(s):  
D PURSEY
Keyword(s):  
Symmetry Properties ◽  
Universal Interaction

Superconducting puddles in electron gas

Nature India ◽  
2013 ◽  
Keyword(s):  
Electron Gas

On the symmetry properties of the incommensurate phase of thiourea

1987 ◽  
Vol 48 (11) ◽  
pp. 2023-2026 ◽  
Author(s):  
T. Simonson ◽  
F. Ddnoyer ◽  
R. Currat
Keyword(s):  
Incommensurate Phase ◽  
Symmetry Properties

SPIN WAVES OF A LAYERED FERROMAGNETIC ELECTRON GAS AND OF A PARAMAGNETIC ELECTRON GAS IN A STRONG MAGNETIC FIELD

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-1611-C8-1612
Author(s):  
W. Gasser ◽  
C. Täuber
Keyword(s):  
Magnetic Field ◽  
Strong Magnetic Field ◽  
Spin Waves ◽  
Electron Gas
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