A novel theoretical proposition on the field emission of electrons under the action of centrifugal force

Abstract

In this article we have suggested a novel idea of electron emission pro- cess from the surface of a metallic hollow sphere under the action of centrifugal force. The surface is assumed to be of a single layer metallic atoms. Therefore all the electrons are at the same radial distance from the centre of the sphere. The metallic sphere is assumed to be rotating about one of its symmetry axes with a uniform angular velocity. It may therefore be treated as a non-inertial frame. We have started with classical non-relativistic form of Hamiltonian for the electrons in such a uniformly rotating non-inertial frame and later make some quantum correc- tion. In this theoretical study the conduction electrons in the metallic surface are assumed to be free classical gas. It has been noticed that in the Hamiltonian the single particle centrifugal potential, which is negative in nature is minimum at the equator. As a consequence free electrons will be accumulated inside the centrifugal potential well. We have proposed a mechanism to get electron emission from the equatorial zone under the action of centrifugal force. In the quantum picture it is of course tunneling from the potential well.

Field emission