Temat: 63.20.e - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Characterization and Selected Physical Properties of CdTe/MnTe Short Period Strained Superlattices
Autorzy:: Szuszkiewicz, W.
Dynowska, E.
Bąk-Misiuk, J.
Karczewski, G.
Wojtowicz, T.
Kossut, J.
Jouanne, M.
Powiązania:: https://bibliotekanauki.pl/articles/1952708.pdf
Data publikacji:: 1996-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 63.20.-e
78.30.Fs
Opis:: Phonon excitations in (CdTe)$\text{}_{12}$/(MnTe)$\text{}_{n}$ (100) superlattices (n=2, 4, 8) were investigated at 295 K and 25 K with the use of Raman scattering. From the "folded" phonon frequencies the elastic constant c$\text{}_{11}$ value for MnTe was estimated. The strain arising from lattice mismatch (determined by X-ray diffraction) results in shifts of MnTe and CdTe "confined" LO phonon frequencies. For the precise determination of LO phonon dispersions an additional shift due to Mn diffusion at the CdTe/MnTe interface should be taken into account.
Źródło:: Acta Physica Polonica A; 1996, 90, 5; 1090-1094
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Raman Scattering by Phonons and Magnons in MBE-Grown Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te Layers
Autorzy:: Szuszkiewicz, W.
Jouanne, M.
Dynowska, E.
Janik, E.
Karczewskl, G.
Wojtowicz, T.
Kossut, J.
Powiązania:: https://bibliotekanauki.pl/articles/1934042.pdf
Data publikacji:: 1995-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.30.Ds
63.20.-e
78.30.Fs
Opis:: Collective excitations have been analyzed for Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te epilayers (0.66 ≤ x ≤ 1) by the Raman scattering studies performed at temperatures from 7 K to 295 K. Apart from the lattice optical modes magnetic excitations (magnons) were observed at sufficiently low temperatures.
Źródło:: Acta Physica Polonica A; 1995, 88, 5; 941-944
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Raman Scattering from ZnO(Fe) Nanoparticles
Autorzy:: Romčević, N.
Kostić, R.
Romčević, M.
Hadžić, B.
Kuryliszyn-Kudelska, I.
Dobrowolski, W.
Narkiewicz, U.
Sibera, D.
Powiązania:: https://bibliotekanauki.pl/articles/1811980.pdf
Data publikacji:: 2008-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 63.20.-e
78.30.Fs
78.67.-n
Opis:: Nanocrystalline samples of ZnO(Fe) were synthesized by wet chemical method. Samples were characterized by X-ray diffraction to determine composition of the samples (ZnO, Fe₂O₃, ZnFe₂O₄) and the mean crystalline size (8-52 nm). In this paper we report the experimental spectra of the Raman scattering (from 200 to $1600 cm^{-1}$). Main characteristics of experimental Raman spectrum in 200 to $1600 cm^{-1}$ spectral region are: sharp peak at $436 cm^{-1}$ and broad two-phonon structure at ≈ $1150 cm^{-1}, typical of ZnO;broad structure below $700 cm^{-1}$ that has different position and shape in case of ZnFe₂O₄ or Fe₂O₃ nanoparticles.
Źródło:: Acta Physica Polonica A; 2008, 114, 5; 1323-1328
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Raman Scattering in Zn$\text{}_{1-x}$Mg$\text{}_{x}$Se Mixed Crystals
Autorzy:: Kozielski, M.
Szybowicz, M.
Firszt, F.
Łęgowski, S.
Męczyńska, H.
Sekulska, B.
Szatkowski, J.
Paszkowicz, W.
Powiązania:: https://bibliotekanauki.pl/articles/1952561.pdf
Data publikacji:: 1996-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.30.Fs
78.55.Et
63.20.-e
Opis:: This paper presents results of investigations of the Raman scattering of vibrational modes in Zn$\text{}_{1-x}$Mg$\text{}_{x}$Se crystals for the range of composition 0 < x < 0.43. The Raman polarized spectra of Zn$\text{}_{1-x}$Mg$\text{}_{x}$Se were measured at room temperature. The typical Raman spectrum shows four peaks which can be interpreted as longitudinal and transverse optical ZnSe-like and MgSe-like phonons. The ZnSe-like and MgSe-like vibrations can be described by the modified random element isodisplacement model. Results of the Raman measurements in the investigated range of composition confirm the two-mode behaviour of the optical phonons in the mixed Zn$\text{}_{1-x}$Mg$\text{}_{x}$ Se crystals.
Źródło:: Acta Physica Polonica A; 1996, 90, 5; 1040-1044
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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