Weak-Field Magnetoresistance and the Valence-Band Structure of SnTe
NAVAL ORDNANCE LAB WHITE OAK MD
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Weak-field magnetoresistance measurements on p-type SnTe exhibit a peculiar symmetry which is temperature and carrier-concentration dependent. A Fermi-surface model is described which can account for these results and reconcile them with several other kinds of experimental measurements on SnTe. The Fermi surface consists of four prolate 111 valleys with three 100- oriented knobs protruding from each end of each valley. The proposed model is also used to bring out some previously unreported similarities between the band structures of the Pb1-xSnxTe and Bi1-xSbx systems, and to examine the broader question of the connection between weak-field magnetoresistance behavior and band-structure characteristics.
- Solid State Physics
- Metallurgy and Metallography