Measurements have been made of the de Haas-van Alphen effect in Sb(Sn ) alloys containing up to 0.58 at % Sn and Sb(Te) alloys with up to 0.26 at % Te. The maximum electron period in the bisectrix-trigonal plane increased from 14.66 • 10 -7 G -1 in pure Sb to 68.0 x 10 -7 G-r in the most concentrated Sn-doped sample, whereas the maximum hole period decreased from 16.33• -7 to 7.4x 10 -7 G -1. The Te doping had the opposite effect--increasing the number of electrons and decreasing the number of holes. The results of measurements of effective mass and Fermi surface area are found to be consistent with a rigid-band model of these dilute alloys. Both electron and hole bands are strongly nonparabolic and a two-band model is used to estimate that the gap below the electron pocket at L is 110 • 25 me V. The Fermi levels of electrons and holes in Sb are estimated to be 150+ 10 and 180 + 40 me V, respectively, It is predicted that the electron pockets will be completely emptied for an alloy with O. 78 + O.07 at % Sn. Pseudopotential calculations suggest that the rigid-band model is a reasonable approximation in these dilute alloys.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.