Accession Number : AD0704802

Title :   ELECTRONIC TUNNELING INTO NIOBIUM SINGLE CRYSTALS.

Descriptive Note : Final rept. 1 Feb 65-31 Jan 70,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF METALLURGY AND MATERIALS SCIENCE

Personal Author(s) : Rose,Robert M.

Report Date : 31 JAN 1970

Pagination or Media Count : 25

Abstract : The central theme of all the research supported by this contract is a single experiment: tunneling of electrons into (and from) the surface of a superconducting single crystal of Nb or a similar transition metal. The experimental work on the energy gap for niobium was completed. The existence of a second energy gap was shown and its properties were investigated. Both gaps were shown to be correlated with the Fermi surface and band structure of niobium.

Descriptors :   (*SUPERCONDUCTORS, *TUNNELING(ELECTRONICS)), (*NIOBIUM, BAND THEORY OF SOLIDS), SINGLE CRYSTALS, INTERFACES, ANISOTROPY

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE