Longitudinal Magnetoresistance and Hall Mobility ofn‐Type Germanium at High Electric Fields
作者:
B. R. Nag,
H. Paria,
S. Guha,
期刊:
Journal of Applied Physics
(AIP Available online 1967)
卷期:
Volume 38,
issue 6
页码: 2425-2427
ISSN:0021-8979
年代: 1967
DOI:10.1063/1.1709919
出版商: AIP
数据来源: AIP
摘要:
The longitudinal magnetoresistance and Hall mobility of 5‐&OHgr;·cmn‐type germanium have been measured for electric fields applied in the (111) direction up to 4 kV/cm. It has been found that (i) longitudinal magnetoresistance at a particular electric field decreases with an increase in the magnetic field, (ii) for small magnetic fields the longitudinal magnetoresistance decreases with an increase in the electric field, and (iii) the Hall mobility and the ratio of Hall mobility to the conductivity mobility decrease with an increase in the electric field.The experimental value for fields above 1 kV/cm are found to agree with the theoretical values calculated with the assumptions that (i) the scattering is due to the acoustic, optical, and intervalley phonons, (ii) the average energy of the electrons is much larger than that of the optical phonons, (iii) the intervalley phonons affect only the carrier repopulation in the different valleys, and (iv) the value of the optical‐phonon deformation potential constant is 0.8×109eV/cm.
点击下载:
PDF
(212KB)
返 回