NEW MODEL OF ELECTRICAL CONDUCTION AND CURRENT NOISE IN DISCONTINUOUS METAL FILMS.

M. Celasco, A. Masoero, P. Mazzetti, A. Stepanescu

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Abstract

The main results of a recent theory on the electrical conduction and current noise in discontinuous metal films are discussed. In this theory the main conduction mechanism is a direct-tunneling process of the electrons between metal islands within the insulator substrate. The tunneling electrons must overcome a potential barrier which is temperature dependent. The model assumes that the electrons trapped in surface states can tunnel in the metal states giving rise to a double charge layer at the interface. The current noise is generated by a modulation mechanism of the carrier direct tunneling due to thermal fluctuation of the potential barrier height, generated by a corresponding fluctuation of the surface charge. New results about the conductivity and current noise behavior on Au film deposited on sapphire tube are also given up to a temperature of about 950 K, and interpreted on the basis of the above theory.

Lingua originaleInglese
pagine (da-a)105-112
Numero di pagine8
RivistaOrganic Geochemistry
Stato di pubblicazionePubblicato - 1979
Pubblicato esternamente
EventoProc - Eur Hybrid Microelectron Conf -
Durata: 21 mag 197923 mag 1979

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