Zobrazeno 1 - 10
of 76
pro vyhledávání: '"N. N. Syrbu"'
Publikováno v:
Advances in Condensed Matter Physics, Vol 2017 (2017)
The resonance Raman scattering for geometries Y(YX)Z and Y(ZX)Z at temperature 10 K and infrared reflection spectra in E∥a and E∥b polarizations at 300 K were investigated. The number of Aa (Ba) and Au (Bu) symmetry vibrational modes observed exp
Externí odkaz:
https://doaj.org/article/a536e0cb75a84804a2afa6d20fb2aa91
Autor:
Galina Gurieva, Susan Schorr, L. Dermenji, S. Levcenko, Ernest Arushanov, Maxim Guc, N. N. Syrbu
Publikováno v:
Solid State Communications. 190:44-48
Exciton spectra of Cu2ZnSiS4 single crystals are investigated by reflection spectroscopy at 10 and 300 K for light polarized perpendicular (E⊥c) and parallel (E∥c) to the optical axis. The parameters of the excitons and dielectric constant are de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49b1000ef50c23e5c1e0abf465ff4f18
https://doi.org/10.1016/j.ssc.2014.03.024
https://doi.org/10.1016/j.ssc.2014.03.024
Autor:
Sergiu Levcenko, José Manuel Merino, V. E. Tezlevan, N. N. Syrbu, A. Nateprov, Máximo León, Ernest Arushanov
Publikováno v:
physica status solidi (a). 203:2909-2912
Optical absorption spectra of CuIn 5 Se 8 and CuGa 3 Se 5 single crystals grown by chemical vapour transport were investigated in the range of 10-300 K. The logarithmic variation of the absorption coefficient with photon energy observed in both compo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd7655d5c4812ace6958c17a57202607
https://doi.org/10.1002/pssa.200669505
https://doi.org/10.1002/pssa.200669505
Publikováno v:
Journal of Physics D: Applied Physics. 39:1515-1520
Single crystals of CuGa3Se5 have been grown by chemical vapour transport. Optical properties of CuGa3Se5 have been investigated in the temperature range between 10?K and room temperature 300?K. The temperature dependence of the energy gap was studied
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76eb8b09ea9538e9f4e8a005658a9a9c
https://doi.org/10.1088/0022-3727/39/8/010
https://doi.org/10.1088/0022-3727/39/8/010
Publikováno v:
Journal of Physics and Chemistry of Solids. 66:1974-1977
Exciton spectra are studied in CuGa X In 1− X S 2 solid solutions by means of photoreflectivity and wavelength modulation spectroscopy at liquid nitrogen temperature. The exciton parameters, dielectric constants, and free carrier effective masses a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f56d6e485c023e73040d4e1493c8661
https://doi.org/10.1016/j.jpcs.2005.09.029
https://doi.org/10.1016/j.jpcs.2005.09.029
Publikováno v:
Physica B: Condensed Matter. 353:111-115
Photoreflectivity and photoluminescence spectra in the region of exciton resonance were measured in ZnO single crystals. A, B, and C exciton binding energies were determined from the energy position of the ground and excited exciton states. Electron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51bbfec7882d2b3e94ce3057a2d00d68
https://doi.org/10.1016/j.physb.2004.09.007
https://doi.org/10.1016/j.physb.2004.09.007
Autor:
S.D. Shutov, G.J. Adriaenssens, N. N. Syrbu, David Furniss, Mihai S. Iovu, Andrei M. Andriesh, Angela B. Seddon
Publikováno v:
Journal of Non-Crystalline Solids. :279-282
The absorption and emission spectra of Ga–La–S–O glasses with fixed cation ratio Ga/La=0.7/0.3 and two oxygen contents 0.65 wt% and 2.95 wt% were studied for two Pr3+ doping levels of 0.1 and 1.0 wt%. Presence of oxygen induces blue shift of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51f72b3bf317b30063f52227757a9149
https://doi.org/10.1016/s0022-3093(03)00409-5
https://doi.org/10.1016/s0022-3093(03)00409-5
Publikováno v:
Journal of Physics and Chemistry of Solids. 63:1823-1828
Mercury thiogallate single crystals are shown to exhibit bright photoluminescence (PL) tunable in a wide spectral range from green to red when changing the excitation power density, wavelength and sample temperature. Taking into account the excitatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b768da1418d1593892991e196b136c1
https://doi.org/10.1016/s0022-3697(02)00002-1
https://doi.org/10.1016/s0022-3697(02)00002-1
Publikováno v:
Optics and Spectroscopy. 92:402-408
The unmodulated and wavelength-modulated reflectivity spectra of CuGaS2 crystals for the polarization E ‖ c, k ⊥ c at 77 and 8 K have been studied. The states n=1, 2, and 3 of A excitons and n=1 and 2 of B and C excitons are established. The lumi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6060bc07a7c660fb1ff9ab401798d891
https://doi.org/10.1134/1.1465467
https://doi.org/10.1134/1.1465467
Publikováno v:
Optics and Spectroscopy. 92:395-401
Resonance Raman scattering by exciton polaritons in crystals of CuGaS2 under excitation with the 4880 and 4765 A lines of an Ar+ laser at 9 K is studied. Lines of one-and two-phonon scattering of excitonic polaritons are found and studied. It is show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9404036a889f6cfdee19643aab6028fa
https://doi.org/10.1134/1.1465466
https://doi.org/10.1134/1.1465466