Peculiarities of Composition and Temperature Dependence of Energy-Band Parameters of ZnxCdyHg1-x-yTe |
| A.M. Andrukhiva, V.I. Ivanov-Omskiib, J. Politc and E.M. Sheregiia,c aI. Franko Drogobich Pedagogical University, Drogobich, Ukraine bA. Ioffe Physico-Technical Institute of Russian Academy of Science, St.-Petersburg, Russia cInstitute of Physics, Pedagogical University, Rejtana 16a, 35-959 Rzeszów, Poland |
| Full Text PDF |
| The influence of addition of Zn on band parameters of ZnxCdyHg1-x-yTe solid solution at different temperatures (4.2-200 K) was investigated. The cyclotron resonance at 4.2 K and magnetophonon resonance at 77-200 K were used to determine band structure parameters. The temperature dependence of band structure parameters (energy gap, effective mass of electron) for the composition of series of epilayers (x varied in 0.08-0.20 range and y - 0.07-0.12) was obtained. It is found that band structure parameters for some compositions (for example x = 0.17, y = 0.08) are almost independent from temperature and equal: γ₁L= 19.55, γ₂L = γ₃L = 8.5, KL = 6.48, F = -0.5, Eg = 0.35 eV, Ep = 17.9 eV. The effective mass of electrons was found to be greater with addition of Zn while the effective mass of heavy holes is left unchanged. |
| DOI: 10.12693/APhysPolA.87.513 PACS numbers: 71.25.Tn |