Galvanomagnetic properties of MnkHg1–kTe under hydrostatic pressure

作者: J. Stankiewicz , W. Giriat , M. V. Bien

DOI: 10.1002/PSSB.2220680203

关键词: Electron concentrationAtmospheric temperature rangeElectrical resistivity and conductivityBand gapChemistryAnalytical chemistryHydrostatic pressure

摘要: The variation of the Hall coefficient and electrical conductivity under hydrostatic pressure up to 10 katm in temperature range from 77 300 K was measured mixed crystals MnkHg1–kTe (k< 0.10). From analysis dependences electron concentration energy gap E0= E(Γ6) − E(Γ8) determined for k = 0.012; 0.05; 0.07; 0.09 interval t o K. If is found, that dependence linear with composition within investigated composition. It established, α dE0/dT γ dE0/dp are positive equal 5 × 10−4 eV/deg, 9 10−6 eV/atm, respectively. This first attempt determine on MnkHg1−kTe k< 0.10. obtained results quite similar CdxHg1−xTe, but significant differences occur quantitative values. In 0,10)-Einkristallen wurde die Anderung des Hall-Koeffizienten und der elektrischen Leitfahigkeit bei hydrostatischem Druck bis zu im Temperatur- bereich von untersucht. Ails Analyse Druck- Temperaturabhan-gigkeit Elektronenkonzentration Energielucke E0 - fur 0,012; 0,05; 0,07; 0,09 Temperaturbereich bestimmt. Es wird gefunden, das Abhangigkeit Zusammensetzung untersuchten Bereich abhangt. festgestellt, positiv sind Werte eV/grd bzw. 10−6eV/atm besitzen. Dies stellt den ersten Versuch dar, Zusammensetziing MnkHg1−kTe-Mischkristallen 0,10 bestimmen. Die erhaltenen Ergebnisse Energieabhangigkeit CdxHg1−xTe ahnlich, jedoch treten bedeutende Unterschiede quantitativen Grosen auf.

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