Pressure Dependence of Magnetoconductance in N-Type Germanium.
Abstract
Magnetoconductance measurements to pressures of 20,000 kg/sq cm on n-type germanium are discussed. The measurements confirm the ideas and numerical results of Nathan, Paul, and Brooks (Phys. Rev. to be published). For the energy separation, the following relation is obtained: delta E (ev) equals .21 + or - .03 - (6.5 + or - 1.0)x 10 to the -6th power P(kg/sq cm). After deducing the pressure dependence of the electron mobility in the abs nce of the second set of states, it is confirmed that there is appreciable interband scattering at high pressures in n-type Ge. It is established that the anisotropy parameter K is relatively insensitive to pressure, dec easing by only a few percent in 20,000 kg/sq cm. Then the observed magnetoconductance anisotropy is correlated at atmospheric pressure with the relative amount of impurity scattering present by analyzing the effect of impurity scattering on the transport integrals. In this way conclusions are drawn which relate to the limit of pure lattice scattering. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 10, 1961
- Accession Number
- AD0262018
Entities
Organizations
- Harvard University