Energy Band Structure of Ternary Diamond‐Like A²B⁴C‐Type Semiconductors

Energy Band Structure Calculation of CdGeAs2 by Pseudopotential Method with Spin–Orbit Interaction

“…These results agree very well with the observed value of 0.027m0 [16]. The effective hole masses are mll (r) = 0.034rnO, rn, (r) = 0.22~1, (upper valence band).…”

“…In experimental spectra the peaks due to optical transitions from the three upper valence bands to the second conduction band T,(T,) labelled A", B", C" and to the third conduction band T,(T,) labelled A', B', C' are generally very weak or not observed [16]. Table 2 contains a tentative correspondence Table 2 Comparison of theoretical values of transitions near the gap with experimental ones.…”

“…spectra of [18] at 77 K. b) Electroreflectance spectra of [19] at 300 K. c) Wavelength modulation spectra of [4] at 77 K. d) Value obtained from absorption measurement at 300 K [20]. e)Value obtainedfrom absorption edge at room temperature [16] notation theory a) …”

Negative Crystal-Field Splitting of the Valence Bands in CdSnP2

“…These peaks are reasonably close to the band gap of InP (1.34 eV), 6 the binary analog of CdSnP 2 . However the lowest-energy transition (peak A) is polarized E\\Z 9 opposite to the polarization dependence observed in the wurtzite semiconductors 12 CdS, CdSe, ZnS, ZnSe, and ZnO and to theoretical predictions 3,4 for similar chalcopyrite semiconductors. The orientation of the CdSnP 2 crystals was readily determined by inspection of their habit of growth.…”

Anion Shift Influence on Band Structure of Crystals With Chalcopyrite Lattice

“…Results of a wide investigation of the band structure of ternary A " B '~c~ and A'B~~'c;' semiconductors with chalcopyrite lattice were given in studies [l, 21 and several reviews (e. g. [3] to 151). The most interesting results on fine structure of band edges and some additional band extrema were obtained lately by the modulation spectroscopy method [4, 51.…”