Exchange Integrals in Hg0.95Mn0.05Se Obtained by the Wave Shape Analysis of Shubnikov-de Haas Oscillations
K. Dybko and J. Kossut
Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland
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The Shubnikov-de Haas oscillations were measured in Hg0.95Mn0.05Se at liquid helium temperatures, in magnetic fields up to 13 tesla. The analysis of the experimental data was performed by means of the wave shape method. The dependence of effective g-factor of the conduction electrons and difference Dingle temperature on magnetic field was determined. Non-zero difference Dingle temperature is a clear evidence of spin dependent scattering in this material. The sp-d exchange constants consistent with extracted spin splitting and difference Dingle temperature, α = -0.39 ± 0.06 eV, β = 0.95 ± 0.07 eV, are in good agreement with the values obtained from magnetooptics.
DOI: 10.12693/APhysPolA.84.697
PACS numbers: 72.20.My, 71.70.Gm