About the free electron model in electric conduction of metals
Description
In the model proposed by Drude to describe, among others, the electric conduction in metals, it is supposed that electrons move freely in the material with a time interval between encounters T and a probability distribution g(t). The name, 'electron pause time', will be assigned to the time T with that probability distribution. The calculations made by Drude turned out to be erroneous. The error can be corrected observing that the random variable 'pause time' appearing in this intuitive idea is not the previously defined random variable T, 'electron pause time', but another random variable S, which will be called 'observed pause time' whose probability density is Csg(s), where C is a normalization constant. With this distribution, the characteristics of the distribution, q(u), of the wait time can be obtained. (Author)
Abstract (Spanish)
En el modelo propuesto por Drude para describir, entre otras propiedades, la conduccion electrica en metales, se supone que electrones se mueven en el material, independientes entre ellos, y con un tiempo T entre choques con una densidad de probabilidad g(t). A esta variable aleatoria T con esa distribucion de probabilidad, se denomina 'tiempo de pausa del electron'. El calculo de Drude resulto errado. El error puede corregirse si se observa que la variable aleatoria 'tiempo de pausa' que aparece en su idea intuitiva no es la variable aleatoria T 'tiempo de pausa del electron' arriba definido sino que es otra variable aleatoria S, que se denomina 'tiempo de pausa observado'. La densidad de probabilidad de esta variable aleatoria S es entonces Csg(s), donde C es una constante de normalizacion. La consideracion de esta distribucion permite obtener las caracteristicas de la distribucion q(u) del tiempo de espera. (Autor)Additional details
Additional titles
- Original title (Spanish)
- Sobre el modelo de electrones libres para la conduccion electrica en metales
Publishing Information
- Publisher
- CNEA.
- Imprint Place
- Buenos Aires (Argentina)
- Imprint Title
- Metallurgical sessions. Second ALAMET congress
- Imprint Pagination
- 309 p.
- Journal Page Range
- p. 211-212.
- Report number
- INIS-mf--13398
Conference
- Title
- Metallurgical sessions; 2. ALAMET congress.
- Original Conference Title
- Jornadas metalurgicas
- Dates
- 6-10 May 1991.
- Place
- Buenos Aires (Argentina).
INIS
- Country of Publication
- Argentina
- Country of Input or Organization
- Argentina
- INIS RN
- 24021930
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CARRIER MOBILITY; CHARGE CARRIERS; CHARGE TRANSPORT; ELECTRIC CONDUCTIVITY; ELECTRIC CONDUCTORS; ELECTRON MOBILITY; ELECTRONIC STRUCTURE; ELECTRONS; METALS; STATISTICAL MODELS
- Descriptors DEC
- ELECTRICAL PROPERTIES; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; LEPTONS; MATHEMATICAL MODELS; MOBILITY; PARTICLE MOBILITY; PHYSICAL PROPERTIES
Optional Information
- Notes
- Imprint:Jornadas metalurgicas. Segundo congreso ALAMET (Asociacion Latinoamericana de Metalurgia).