Abstract

Ellipsometry on a series of Co–Si interfaces, for which the equivalent polycrystalline Co deposits differ by only a few monolayers, shows that a large decrease in refractive index of the glassy surface layer occurs quite sharply at Co deposits slightly less than the amount necessary to effect the semiconductor–metal transition observed with dc temperature coefficient-of-resistance measurements at 100 K. This observed behavior of the optical constants of the glassy layer can be interpreted by using a simple model for the optical-frequency polarizability of a localized electron state with a phenomenological localization parameter, which decreases with increasing Co deposit.

© 1981 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Optical nature of interface layers: a comparative study of the Si–SiO2 interface

G. E. Jellison and F. A. Modine
J. Opt. Soc. Am. 72(9) 1253-1257 (1982)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (5)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription