RECOMBINATION EMISSION IN TUNGSTEN AND NIOBIUM SINGLE CRYSTALS.

被引：0

作者：

Mashtakova, V.A. ^{[1
]}

Shishkin, B.B. ^{[1
]}

机构：

[1] Moscow State Univ, Dep of, Electronics, Moscow, USSR, Moscow State Univ, Dep of Electronics, Moscow, USSR

来源：

Moscow University Physics Bulletin (English Translation of Vestnik Moskovskogo Universiteta, Fizik | 1984年 / 39卷 / 02期

关键词：

CATHODES - ELECTRON TUBES; DIODE - NIOBIUM AND ALLOYS - Surfaces;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Anomalies are observed in the current-voltage characteristics of plane-symmetric diodes with thermocathodes from transition-metal monocrystals at temperatures T greater than THETA //t//e, where THETA //t//e is the characteristic temperature of thermal emission. The authors study the temperature dependences of the emission currents in the range DELTA T which includes THETA //t//e, for the (100) surfaces of tungsten, and the (110) surfaces of niobium. For T equals THETA //t//e, the Richardson line for the (100) surface of tungsten has a discontinuity, and the Richardson emission parameters increase discontinuously. The effective work function increases. For the (110) surface of a niobium single crystal, the Richardson parameters remain constant.

引用

页码：88 / 90