Raman Scattering in ZnTe

The Raman spectrum of ZnTe has been investigated. The fundamental frequencies have been found to be vLO=208.3±0.5 cm−1 and vTO= 177.5±0.5 cm−1. The temperature variation of vLO has been examined between room temperature and 4°K. The zone boundary frequencies at the critical points X, L, and W have been estimated from the second‐order Raman spectrum. In determining these frequencies a theoretical model was used to assist in the assignment of the frequencies and as a check on the consistency of the results. The values obtained were further checked using regularities previously observed in the phonon spectra of zinc‐blende semiconductors.

[1]  R. H. Lyddane,et al.  On the Polar Vibrations of Alkali Halides , 1941 .

[2]  G. Dolling,et al.  Crystal Dynamics of Gallium Arsenide , 1963 .

[3]  E. Kellermann.  Theory of the vibrations of the sodium chloride lattice , 1940, Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences.

[4]  C. F. Cline,et al.  Volume Compressibility of BeO and Other II‐VI Compounds , 1965 .

[5]  A. R. Moore,et al.  Intrinsic Optical Absorption in Germanium-Silicon Alloys , 1958 .

[6]  Helen M. J. Smith.  The theory of the vibrations and the Raman spectrum of the diamond lattice , 1948, Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences.

[7]  J. Birman.  Theory of Infrared and Raman Processes in Crystals: Selection Rules in Diamond and Zincblende , 1963 .

[8]  K. Nagasaka,et al.  Optical Properties of Zinc Telluride in the Infrared , 1967 .

[9]  H. Riccius.  Infrared Lattice Vibrations of Zinc Selenide and Zinc Telluride , 1968 .

[10]  B. Szigeti.  Polarisability and dielectric constant of ionic crystals , 1949 .

[11]  Don Berlincourt,et al.  Electroelastic Properties of the Sulfides, Selenides, and Tellurides of Zinc and Cadmium , 1963 .

[12]  S. S. Mitra,et al.  Optically Active Phonon Processes in CdS and ZnS , 1964 .

[13]  H. B. Rosenstock.  Sum Rule for Lattice Vibrations; Application to Forces in Diamond Structures , 1963 .

[14]  Y. P. Varshni,et al.  Lattice dynamics of III–V compounds , 1969 .

[15]  T. A. Bak.  Phonons and Phonon Interactions , 1964 .

[16]  W. W. Piper,et al.  Vapor‐Phase Growth of Single Crystals of II–VI Compounds , 1961 .

[17]  D. Marple,et al.  Refractive Index of ZnSe, ZnTe, and CdTe , 1964 .

[18]  R. Loudon,et al.  The Raman effect in crystals , 1964 .

[19]  R. Keyes.  Trends in the Lattice ``Combination Bands'' of Zincblende-type Semiconductors , 1962 .

[20]  D. G. Thomas,et al.  Isoelectronic Donors and Acceptors , 1966 .

[21]  W. Taylor.  The Raman spectra of cubic zinc selenide and telluride , 1967 .

[22]  R. E. Nahory,et al.  Optical Properties of Zinc Telluride , 1967 .

[23]  R. Brout.  Sum Rule for Lattice Vibrations in Ionic Crystals , 1959 .

[24]  M. Blackman.  On negative volume expansion coefficients , 1958 .