Two types of microwave emission from InSb

Author

Morisaki, Hiroshi ; Inuishi, Yoshio

Author_Institution

Osaka University, Osaka, Japan

Volume

14

Issue

9

fYear

1967

fDate

9/1/1967 12:00:00 AM

Firstpage

590

Lastpage

593

Abstract

Two types of microwave emission from InSb plasma subjected to the crossed electric and magnetic fields were investigated experimentally. From the simultaneous measurements of Hall effect and microwave emission, the threshold condition of the one type of emission was obtained as $(\\omega _{ce} \\tau _{e})^{2} \\cdot \\Delta n \\geq 3 \\times 10^{14}$ cm^-3, where $\\omega _{ce}, \\tau _{e}$ , and $\\Delta n$ are electron cyclotron frequency, relaxation time, and electron-hole pair density, respectively. It was also found that the "Hall" mobility showed anomalous decrease above the threshold. The emission power of the other type of emission showed maximum value at several values of the applied magnetic field lower than the threshold of the noise-type emission. These characteristic magnetic fields were not influenced by current density except by slight change in the low-current density region.

Keywords

Cyclotrons; Density measurement; Electron emission; Frequency measurement; Hall effect; Magnetic field measurement; Magnetic fields; Microwave measurements; Plasma measurements; Time measurement;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/T-ED.1967.16008

Filename

1474731