Electronic Structure of the Ideal Vacancies in (Hg, Cd)Te

作者: E. Erbarut

DOI: 10.1002/PSSB.2221640125

关键词:

摘要: The localized orbital method (LOM) based upon an atomic-like basis set and empirical pseudopotential Hamiltonian in conjunction with the Green's function is employed for study of electron states ideal vacancies (Hg, Cd)Te. This used first time a calculation Bloch sums are formed from Gaussian orbitals s p symmetry on each atomic site. A systematic shows that accurate description band energies density can be obtained, use minimal set. Since relativistic terms neglected weighted average spin splitted levels HgTe CdTe densities states. calculated vacancy general agreement what known about defect Cd)Te. Die Methode lokalisierter Orbitale mit einem atomahnlichen Basissatz und Pseudopotential-Hamiltonian wird Verbindung der Greenschen Funktionen benutzt, um die Elektronenzustande idealer Leerstellen Cd)Te zu untersuchen. Diese erstmals fur eine Berechnung von idealen benutzt. Es werden Blochsummen aus Gausorbitalen s- p-Symmetrie jeden Atomplatz gebildet. Eine systematische Untersuchung zeigt, das genaue Beschreibung Bandenergien Zustandsdichte minimalen Satz Gausfunktionen erhalten kann. Da relativistischen Terme vernachlassigt werden, gewichteten Mittelwerte spinaufgespaltenen Niveaus Zustandsdichten Die berechneten Zustande stimmen im allgemeinen dem uberein, was uber Defektniveaus bekannt ist.

参考文章(16)
G. Lehmann, M. Taut, On the Numerical Calculation of the Density of States and Related Properties Physica Status Solidi (b). ,vol. 54, pp. 469- 477 ,(1972) , 10.1002/PSSB.2220540211
G. F. Koster, J. C. Slater, Wave Functions for Impurity Levels Physical Review. ,vol. 94, pp. 1392- 1392 ,(1954) , 10.1103/PHYSREV.94.1392
M. S. Daw, D.L. Smith, C.A. Swarts, T.C. McGill, Surface vacancies in II–VI and III–V zinc blende semiconductors Journal of Vacuum Science and Technology. ,vol. 19, pp. 508- 512 ,(1981) , 10.1116/1.571048
E. Erbarut, M. Tomak, A Localized Orbital Description of Ge-Si Alloy physica status solidi (b). ,vol. 132, pp. 173- 177 ,(1985) , 10.1002/PSSB.2221320118
Shôji Yamada, On the Electrical and Optical Properties of p-type Cadmium Telluride Crystals Journal of the Physical Society of Japan. ,vol. 15, pp. 1940- 1944 ,(1960) , 10.1143/JPSJ.15.1940
P. H. E. Meijer, P. Pecheur, G. Toussaint, Electronic structure of the Cd vacancy in CdTe Physica Status Solidi B-basic Solid State Physics. ,vol. 140, pp. 155- 162 ,(1987) , 10.1002/PSSB.2221400117
Akiko Kobayashi, Otto F. Sankey, Stephen M. Volz, John D. Dow, Semiempirical tight-binding band structures of wurtzite semiconductors: AlN, CdS, CdSe, ZnS, and ZnO Physical Review B. ,vol. 28, pp. 935- 945 ,(1983) , 10.1103/PHYSREVB.28.935
C. A. Swarts, M. S. Daw, T. C. McGill, Bulk vacancies in CdxHg1−xTe Journal of Vacuum Science and Technology. ,vol. 21, pp. 198- 200 ,(1982) , 10.1116/1.571712