CaltechAUTHORS
  A Caltech Library Service

The thermionic and photoelectric work functions of molybdenum

DuBridge, Lee A. and Roehr, W. W. (1932) The thermionic and photoelectric work functions of molybdenum. Physical Review, 42 (1). pp. 52-57. ISSN 0031-899X. http://resolver.caltech.edu/CaltechAUTHORS:DUBpr32c

[img]
Preview
PDF
See Usage Policy.

526Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:DUBpr32c

Abstract

The photoelectric and thermionic emission from pure molybdenum was studied during a prolonged process of outgassing by heat treatment at temperatures up to 2100°K. In a sealed-off tube an equilibrium condition was reached which was not changed by further treatment extending up to 1600 hours. Photoelectric curves taken at room temperature and at 940°K and analyzed by Fowler's method yielded a true work function for the outgassed Mo of 4.15±0.02 volts. Thermionic data for the same specimen also yielded a work function of 4.15 volts, and a value of the constant A close to the theoretical value of 60 amp./cm^2 deg.^2.


Item Type:Article
Additional Information:©1932 The American Physical Society. Received 20 August 1932. The work described in this paper was made possible by assistance to the first named author from a grant made by the Rockefeller Foundation to Washington University for research in science.
Record Number:CaltechAUTHORS:DUBpr32c
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:DUBpr32c
Alternative URL:http://dx.doi.org/10.1103/PhysRev.42.52
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4262
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:11 Aug 2006
Last Modified:26 Dec 2012 08:58

Repository Staff Only: item control page