Published April 1977 | Version v1
Miscellaneous Open

Magnetic properties of confined electron gas

Creators

Description

The effects of confinement by a two or three-dimensional harmonic potential on the magnetic properties of a free electron gas are investigated using the grand-canonical ensemble framework. At high temperatures an extension of Darwin's, Felderhof and Raval's works is made taking into account spin effects at low temperature. A comprehensive description of the magnetic properties of a free electron gas is given. The system is regarded as finite, but the boundary condition psi=0 is not introduced. The limits of weak and strong confinement are also analysed

Availability note (English)

MF available from INIS under the Report Number.

Abstract (Portuguese)

Os efeitos de confinamento por um potencial harmonico bi e tridimensional, nas propriedades magneticas de um gas de eletrons livres, sao investigados pelo uso da distribuicao gran-canonica. Faz-se uma extensao aos trabalhos de Darwin e de Felderhof e Raval no dominio de temperaturas altas para levar em conta efeitos de spin e verificar o limite de validade do seu procedimento. Apresenta-se uma descricao abrangente das propriedades magneticas do gas de eletrons, a baixas temperaturas considerando-se o sistema finito mas sem introduzir as complicacoes oriundas da condicao de contorno (psi=0). Sao analisados os limites em que a frequencia caracteristica do potencial de confinamento (ω0) e muito maior ou muito menor do que a frequencia de Larmor (ω sub(L)), correspondendo respectivamente aos casos de confinamento forte ou fraco, e suas implicacoes sobre o comportamento do momento magnetico do sistema

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Additional details

Additional titles

Original title (Portuguese)
Propriedades magneticas de gas de eletrons confinado

Publishing Information

Imprint Pagination
79 p.
Report number
INIS-mf--4311

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
9387032
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Resource subtype / Literary indicator
Thesis
Descriptors DEI
BLOCH EQUATIONS; BOLTZMANN STATISTICS; DENSITY MATRIX; ELECTRON GAS; HARMONIC POTENTIAL; INTEGRAL CALCULUS; MAGNETIC SUSCEPTIBILITY; ONE-DIMENSIONAL CALCULATIONS; PARTITION FUNCTIONS; SINGULARITY; TEMPERATURE DEPENDENCE; TWO-DIMENSIONAL CALCULATIONS
Descriptors DEC
EQUATIONS; FUNCTIONS; MAGNETIC PROPERTIES; MATHEMATICS; MATRICES; NUCLEAR POTENTIAL; PHYSICAL PROPERTIES