Linear dependence of the Hall coefficient of 1% Na doped PbTe with varying magnetic field

David R. Brown, Yanzhong Pei*, Heng Wang, G. Jeffrey Snyder

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Heavily p-doped PbTe is known to be a highly efficient thermoelectric material and theories explaining this have connected it to positive curvature in the Seebeck coefficient between 300 and 500 K and a peak in the Hall coefficient at 500 K due to band convergence. Recent work by Jaworski et al. has suggested that a pocket of high mobility electrons between the L and Sigma point in the Brillouin zone are responsible for these effects, inferred from an observed inversion of the Hall resistivity under small magnetic fields (<0.5 T). Here the Hall resistivity of 1% Na doped PbTe is measured in magnetic fields ranging from 0.1 to 2 T at 293 and 626 K and found to be linear without any inversion of Hall resistivity.

Original languageEnglish (US)
Pages (from-to)1273-1275
Number of pages3
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume211
Issue number6
DOIs
StatePublished - Jun 2014

Keywords

  • Hall effect
  • lead chalcogenides
  • minority carriers
  • thermoelectrics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

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