Unified weak-field magnetoresistance phenomenology for (111)-oriented thin films and surface layers with cubic, trigonal, and hexagonal symmetries. II. The evolution towards two-dimensional conductivity
Abstract
This is an addendum to an earlier paper which developed a four-parameter generalization of the Seitz-Pearson-Suhl formulation of weak-field magnetoresistance. That paper derived and discussed briefly the constraints imposed on those parameters in the case of two-dimensional (2D) conductivity. The present Brief Report enlarges that discussion, relating those parameters to several kinds of experimental observations, to the values of certain sample-oriented magnetoresistance tensor components, and to the behavior of a magnetoresistance calculation based on a specific band model. The evolution of these characteristics is described, as a series of constraints of increasing severity changes the nature of the conducting medium from the general case of trigonal symmetry to the limiting one of 2D conductivity.
- Publication:
-
Physical Review B
- Pub Date:
- September 1982
- DOI:
- 10.1103/PhysRevB.26.3449
- Bibcode:
- 1982PhRvB..26.3449A