Temat: 74.76.-w - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Measurement of Infrared Transition Spectrum of Synchrotron Radiation Through Superconducting YBa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7-δ}$ Film
Autorzy:: Tyutyunnikov, S. I.
Shaliapin, V. N.
Scintee, N.
Powiązania:: https://bibliotekanauki.pl/articles/1964055.pdf
Data publikacji:: 1997-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.76.+w
78.30.-j
Opis:: This paper presents measurement results of the synchrotron radiation infrared transmission spectrum through YBCO film on MgO substrate at T=20 K temperature. The film's transmission temperature of the superconducting state is T$\text{}_{c}$=80 K. During formation cycle the maximum intensity wavelength varies from 100 μm to 10 μm. Due to spectrum evolution the detector signal that gives synchrotron radiation sample transmission is related to the sample transmission ability, the sensitivity of the detector and synchrotron radiation spectrum via an integral equation. The best agreement with experiment results is achieved for the Eγ=20 meV energy gap value, which corresponds to 2Eγ/kT$\text{}_{c}$=2.9 at T=20 K.
Źródło:: Acta Physica Polonica A; 1997, 91, 5; 893-897
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Thin Films and Heterostructures of Layered Oxides: Preparation and Properties
Autorzy:: Przysłupski, P.
Powiązania:: https://bibliotekanauki.pl/articles/1964241.pdf
Data publikacji:: 1997-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.70.Cn
74.72.Bk
74.76.-w
Opis:: A brief overview of the deposition and properties of YBa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7}$ (YBCO) based heterostructures is presented. Emphasis is placed on the assessment of the deposition process and the properties of practical thin films and heterostructures of layered oxides. Besides a reference to the literature we present our recent results concerning deposition, structural and magnetic properties of YBa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7}$ /RE$\text{}_{1-x}$A$\text{}_{x}$MnO$\text{}_{3}$ (YBCO/REMO) heterostructures.
Źródło:: Acta Physica Polonica A; 1997, 92, 1; 127-133
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Two-Dimensional Behavior of YBa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{x}$ Films on SrTiO$\text{}_{3}$ Substrates
Autorzy:: Mikheenko, P. N.
Lewandowski, S. J.
Powiązania:: https://bibliotekanauki.pl/articles/1964342.pdf
Data publikacji:: 1997-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.62.Dh
74.76.-w
74.80.-g
74.80.Dm
Opis:: Long-term (up to 18 months) degradation of textured YBa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{x}$ films prepared by laser ablation and magnetron sputtering on single crystal SrΤiO$\text{}_{3}$, MgO and Al$\text{}_{2}$O$\text{}_{3}$ substrates were investigated. All films at each stage of exposition displayed a clearly visible quasi-2D behavior. From the measurements of the Kosterlitz-Thouless temperature it could be concluded that the oxygen content and density of charge carriers remained constant. It follows that the main consequence of degradation is the omission of some planes from the transport of supercurrent and the samples could be described in the model of layered structure with variable number of conducting planes. Using this model we find that effective thickness of an isolated CuO$\text{}_{2}$ plane in samples with greatest internal damage is ≈2Å.
Źródło:: Acta Physica Polonica A; 1997, 92, 1; 152-156
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Growth, Morphology and Superconductivity of Epitaxial (RE)$\text{}_{1}$Ba$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7-δ}$ Films on SrTiO$\text{}_{3}$ and NdGaO$\text{}_{3}$ Substrates
Autorzy:: Krumme, J.-P
David, B.
Doormann, V.
Eckart, R.
Rabe, G.
Dössel, O.
Powiązania:: https://bibliotekanauki.pl/articles/1964234.pdf
Data publikacji:: 1997-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 68.65.+g
74.76.-w
81.15.-z
Opis:: The growth of (RE)$\text{}_{1}$ Ba$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7-δ}$ (RE: Y, Nd) films on NdGaO$\text{}_{3}$ and SrTiO$\text{}_{3}$ substrates by ion-beam and dc-/rf-magnetron sputter deposition is discussed in the framework of growth kinetics, oxygen exchange, epitaxial relations, substrate crystal orientation, in-plane coherence, vicinal substrate cuts, overgrowth on steps, superconductor/insulator combinations, and patterning by ion-beam etching. The process conditions for ion-beam and magnetron sputter deposition are briefly outlined.
Źródło:: Acta Physica Polonica A; 1997, 92, 1; 55-68
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Physical Properties of (M$\text{}_{2}$Cu$\text{}_{2}$O$\text{}_{3}$)$\text{}_{m}$(CuO$\text{}_{2}$)$\text{}_{n}$ (M = Ca, Sr, Bi) Single Crystals with Bi-2212 Phase on their Surface
Autorzy:: Babonas, G.-J.
Leonyuk, L.
Maltsev, V.
Szymczak, R.
Reza, A.
Baran, M.
Dapkus, L.
Powiązania:: https://bibliotekanauki.pl/articles/2028903.pdf
Data publikacji:: 2001-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.66.-w
74.72.Jt
74.76.Bz
Opis:: The structural, optical, and magnetic properties are studied in the (M$\text{}_{2}$Cu$\text{}_{2}$O$\text{}_{3}$)$\text{}_{m}$(CuO$\text{}_{2}$)$\text{}_{n}$-type single crystals with the surface on which the Bi-2212-type phase was indicated. The physical properties of such samples were interpreted to some extent by the contributions of two phases. When the secondary phases on the surface of the samples were removed by mechanical polishing or etching by Ar$\text{}^{+}$-ion plasma, the physical properties were typical of the (M$\text{}_{2}$Cu$\text{}_{2}$O$\text{}_{3}$)$\text{}_{m}$(CuO$\text{}_{2}$)$\text{}_{n}$-type crystals. The optical method was shown to be effective for indication of secondary Bi-rich phases on the surface of (M$\text{}_{2}$Cu$\text{}_{2}$O$\text{}_{3}$)$\text{}_{m}$(CuO$\text{}_{2}$)$\text{}_{n}$ samples.
Źródło:: Acta Physica Polonica A; 2001, 100, 4; 553-563
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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