Autor: Pajączkowska, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Electron Spin Resonance Study of Thermal Defects in SrLaAlO$\text{}_{4}$ and SrLaGaO$\text{}_{4}$ High-T$\text{}_{c}$ Substrates
Autorzy:: Jabłoński, R.
Gloubokov, A.
Pajączkowska, A.
Powiązania:: https://bibliotekanauki.pl/articles/1964356.pdf
Data publikacji:: 1997-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 76.30.-v
61.72.Hh
61.72.Ji
Opis:: The effect of annealing SrLaAlO$\text{}_{4}$ (SLA) and SrLaGaO$\text{}_{4}$ (SLG) crystals in oxidizing and reducing atmospheres in the temperature range of 950°C-1300°C was investigated. Three kinds of anisotropic defects D$\text{}_{1}$, D$\text{}_{2}$, and E at the temperature range of 4-300 K were found. By diagonalization of orthorhombic spin-Hamiltonian parameters: |D|=0.0541(10) cm$\text{}^{-1}$, |E|=0.0108(10) cm$\text{}^{-1}$, g$\text{}_{∥}$=0.883(5), and g$\text{}_{⊥ }$=1.922(5) for D$\text{}_{1}$ defects for SLG and SLA were calculated and they had the same values within the margin of error.
Źródło:: Acta Physica Polonica A; 1997, 92, 1; 169-172
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Elastooptic Constants of SrLaAlO$\text{}_{4}$ and SrLaGaO$\text{}_{4}$ Single Crystals Determined by Brillouin Scattering
Autorzy:: Drozdowski, M.
Pajączkowska, A.
Kasprowicz, D.
Ziobrowski, P.
Gloubokov, A.
Powiązania:: https://bibliotekanauki.pl/articles/1964361.pdf
Data publikacji:: 1997-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 33.20.Fb
78.35.+c
63.20.-e
Opis:: In this paper we report the elastooptic constants p$\text{}_{ij}$ of strontium lanthanum aluminate, SrLaAlO$\text{}_{4}$ and strontium lanthanum gallate SrLaGaO$\text{}_{4}$ single crystals, which were determined at room temperature using Brillouin scattering method. In order to investigate the elastooptic constants of SrLaAlO$\text{}_{4}$ and SrLaGaO$\text{}_{4}$ single crystals, a substitution method proposed by Cummins and Schoen, and developed by Nelson and Lax was used. The obtained results are also discussed in terms of the nature defects which might arise in these crystals during growth process.
Źródło:: Acta Physica Polonica A; 1997, 92, 1; 177-181
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Isovalence Substitutions in Multicomponent Aluminates ABCO$\text{}_{4}$
Autorzy:: Komissarova, L.
Zimina, G.
Spiridonov, F.
Pushkina, G.
Gloubokov, A.
Pajączkowska, A.
Powiązania:: https://bibliotekanauki.pl/articles/1964531.pdf
Data publikacji:: 1997-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 77.84.Βw
Opis:: The crystallochemical characteristics of polycrystalline samples, Sr$\text{}_{1-x}$La$\text{}_{x}$AlO$\text{}_{4}$, Sr$\text{}_{1-x}$Νd$\text{}_{x}$ΑlO$\text{}_{4}$ (x = 0.02+0.20) and Sr$\text{}_{1-x}$Bi$\text{}_{x}$NdΑlO$\text{}_{4}$ (x = 0.05 ÷ 0.50) prepared by the oxalate coprecipitation and cryochemical technique have been investigated. The existence limits of single-phase states for pairs of elements Sr-Pb (x < 0.05) and Nd-Bi (x < 0.2) were determined. The microprobe X-ray analysis showed the Bi uniform distribution. The dielectric properties of pure SrLaΑlO$\text{}_{4}$, SrLaGaO$\text{}_{4}$ and partial replacement La → Nd samples were measured. It can be concluded that these compounds are suitable as substrate materials of HTSC thin films.
Źródło:: Acta Physica Polonica A; 1997, 92, 1; 248-250
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Investigation of Colour Centres in SrLaAlO$\text{}_{4}$ and SrLaGaO$\text{}_{4}$ Single Crystals
Autorzy:: Ubizskii, S. B.
Savytskii, D.I.
Olijnyk, V. Ya.
Matkovskii, A. O.
Gloubokov, A.
Pajączkowska, A.
Powiązania:: https://bibliotekanauki.pl/articles/1964350.pdf
Data publikacji:: 1997-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.82.Ms
Opis:: Absorption spectra of SrLaAlO$\text{}_{4}$ and SrLaGaO$\text{}_{4}$ single crystals are investigated as well as their changes after irradiation by γ-quanta ($\text{}^{60}$Co source). Both crystals reveal a similar behaviour that is caused, as it seems, by the same nature of colour centres in them. The conclusion that oxygen defects as well as Fe impurities play a significant role in the colour centres formation in these crystals.
Źródło:: Acta Physica Polonica A; 1997, 92, 1; 163-168
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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