de Haas-van Alphen and Galvanomagnetic Effect in Bi and Bi-Pb Alloys

R. N. Bhargava
Phys. Rev. 156, 785 – Published 15 April 1967
PDFExport Citation

Abstract

The de Haas-van Alphen (dHvA) effect in pure Bi and lightly doped Bi-Pb alloys was studied using a sensitive mutual-induction technique. In pure Bi, we obtained for the electron and hole Fermi surfaces, respectively: Fermi energies En=25.0 meV and Ep=11.0 meV; the number densities per ellipsoid n=0.96×1017cc and p=3.00×1017cc, and the Dingle temperatures κn=0.68°K and κp=0.2°K. Additionally, we find that for the conduction band the energy dispersion in the heavy-mass direction is essentially the same as in the lighter-mass direction; i.e., the constant-energy surfaces are very closely ellipsoidal. The data on Bi-Pb alloys show that the relative motion of the conduction and the overlapping valence band is negligible and only the Fermi level shifts with alloying. From the dHvA and the galvanomagnetic data in Bi-Pb alloys in moderate fields, we deduced that the electron and hole mobilities decrease inversely as (NpNn) as expected, where the N's are the total carrier densities and we assume that all the Pb atoms scatter independently as ionized impurities.

  • Received 17 October 1966

DOI:https://doi.org/10.1103/PhysRev.156.785

©1967 American Physical Society

Authors & Affiliations

R. N. Bhargava*

  • IBM Watson Laboratory, Columbia University, New York, New York

  • *Present address: T. Watson Research Center, Yorktown Heights, New York.

References (Subscription Required)

Click to Expand
Issue

Vol. 156, Iss. 3 — April 1967

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Journals Archive

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×