https://doi.org/10.15407/spqeo4.04.391
Semiconductor Physics, Quantum Electronics & Optoelectronics. 2001. V. 4, N 4. P. 391-393.
PACS: 78.30.-j, 31.30.Gs
Raman scattering of light in biaxial monocline b-ZnP2 crystals
V.O. Gubanov 1, V.D. Kulakovs’kij 2, R.A. Poveda 3, Z.Z. Yanchuk 1
1 Taras Shevchenko National University, Kyiv, Ukraine;
2 Institute for Solid State Physics, Chernogolovka, Russia;
3 Pedagogical University, Kam’yanets’-Podil’s’kiy,
E-mail: poveda@kp.km.ua
Abstract. In this paper we represent for the first time observed experimental data on non-resonant Raman scattering in a plate of b-ZnP2. The high-frequency part of RS spectra КР b-ZnP2 is determined by oscillations of sites in P-atom spirals considered as building units of the b-ZnP2 lattice. These spirals, as to their oscillatory properties, are very similar to infinite P-atom spirals in a-ZnP2. Thus, the most intensive RS spectral band 433.0 cm-1 responds to main inphase quasivalence oscillations for all four translations of non-equivalent sites in Р-spirals while bands 448.4; 458.2; 466.3 cm-1 to quasivalence out-of-phase excited oscillations orthogonal to the main ones.
Keywords: b-ZnP2, non-resonant Raman scattering, irreducible representations.
Paper received 27.03.01; revised manuscript received 23.06.01; accepted for publication 13.07.01.
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