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Experimental Determination of E−k Relationship in Electron Tunneling

Lewicki, G. and Mead, C. A. (1966) Experimental Determination of E−k Relationship in Electron Tunneling. Physical Review Letters, 16 (21). pp. 939-941. ISSN 0031-9007. doi:10.1103/PhysRevLett.16.939.

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We report here measurements of electron tunneling through thin AlN films in which the imaginary component of the propagation vector in the forbidden band has been determined as a function of energy from the dependence of the tunneling current upon insulator thickness. The relationship so derived agrees well with Franz's empirical relationship for a material with the 4.2-eV forbidden-band energy of AlN. These results allow the prediction of voltage-current characteristics over the entire range of experimental variables with no arbitrary adjustable parameters, and also subject to several internal self-consistency checks. In each case complete consistency is observed, To the authors' knowledge, this represents the first unambiguous demonstration of such consistency in thin-film tunneling.

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Additional Information:© 1966 American Physical Society. Received 28 February 1966. This work was supported in part by the Office of Naval Research.
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Office of Naval Research (ONR)UNSPECIFIED
Issue or Number:21
Record Number:CaltechAUTHORS:20150130-152604952
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ID Code:54259
Deposited On:31 Jan 2015 23:18
Last Modified:10 Nov 2021 20:31

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