Abstract
The TSEE of oxide films on Be foils has been investigated in ultrahigh vacuum with the facility of preparing clean oxide layers by argon sputtering and oxidation in situ. There is the possibility of monitoring the chemical state of the surfaces investigated by Auger spectroscopy via chemical effects in the Be-KVV line. Only surfaces oxidized in wet oxygen turn out to be TSEE-active and extremely stable emitters. Measurements of the thermionic work function demonstrate that low electron affinity values of the oxide surfaces are necessary to observe exoelectron emission. Clean oxide surfaces are found to be TSEE-inactive.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Euler, M., Kriegseis, W., Scharmann, A.: phys. stat. sol. (a)15, 431 (1973)
Euler, M., Scharmann, A.: Proc. 4th Intern. Sympos. Exoelectron Dosimetry, Liblice (1973), Czech. Acad. Sci., pp. 85–89
Kortov, V.S., Shalyapin, A.L., Gaprindoshvily, A.Y.: phys. stat. sol. (a)17, K 33 (1973)
Kortov, V.S.: phys. stat. sol. (a)19, 59 (1973)
Suleman, M., Pattinson, E.B.: J. Phys. F: Metal Phys.3, 497 (1973)
Wilson, R.G.: J. Appl. Phys.37, 2261 (1966)
Dixon, R.D., Lott, L.A.: J. Appl. Phys.40, 4938 (1969)
Hensley, E.B.: J. Appl. Phys.32, 301 (1961)
Author information
Authors and Affiliations
Additional information
Dedicated to Prof. Dr. Dr. Ing. E.h. W. Hanle on occasion of his 75th birthday.
Part of thesis (D 26).
Rights and permissions
About this article
Cite this article
Euler, M., Scharmann, A. Thermally stimulated exoelectron emission (TSEE) of BeO: Work function dependence. Z Physik B 22, 373–375 (1975). https://doi.org/10.1007/BF01312808
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01312808