Effective masses and non-parabolicity in gaxin1 -xas

C. K. Sarkar, R. J. Nicholas, J. C. Portal, M. Razeghi, J. Chevriers, J. Massies

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


Measurements are reported of frequency- and temperature-dependent cyclotron resonance in the ternary alloy GaxIn1- As. close to its lattice match with InP. The bandedge effective mass is found to be 0.041 mo for x = 0.47. in agreement with earlier measurements. but it is found that the non-parabolicity of the conduction band is approximately double that expected on the basis of k - p perturbation theory. This is thought to be due to alloy disorder. Magnetophonon resonance was also observed. giving a further measurement of the effective mass, together with the first observation of two-phonon-mode behaviour in this material.

Original languageEnglish (US)
Pages (from-to)2667-2676
Number of pages10
JournalJournal of Physics C: Solid State Physics
Issue number13
StatePublished - May 10 1985

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Engineering(all)
  • Physics and Astronomy(all)


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