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Wyszukujesz frazę "68.37.Ps" wg kryterium: Temat


Tytuł:
SPM Characterization of Titanium Disilicide Nanostructures Grown on a Ni-Modified Si(100) Substrate
Autorzy:
Koczorowski, W.
Bazarnik, M.
Czajka, R.
Powiązania:
https://bibliotekanauki.pl/articles/1493616.pdf
Data publikacji:
2011-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.37.Ef
68.37.Ps
Opis:
The paper presents our recent investigations of the early stage growth of titanium silicides on a modified Si(100) substrate. The substrate was modified by deposition of a minute amount of Ni atoms, and the subsequent flash annealing. This process led to the creation of parallel defect lines on the Si(100) surface. We expected TiSi_2 to form elongated structures on top and/or between the defect lines. Though this idea failed, stable nanostructures were observed and characterized using scanning probe microscopy (scanning tunneling microscopy and atomic force microscopy) methods.
Źródło:
Acta Physica Polonica A; 2011, 120, 3; 480-484
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface Composition of CIS Compound Affected by Xe⁺ Irradiation
Autorzy:
Tashlykov, I.
Zukowski, P.
Silvanovich, D.
Gremenok, V.
Powiązania:
https://bibliotekanauki.pl/articles/1402236.pdf
Data publikacji:
2015-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.37.Ps
06.30.Bp
Opis:
The paper presents the results of investigation of element composition of CuInSe₂ (CIS) compounds obtained by vertical Bridgman technique and on a glass substrate by the thermal deposition of Cu-In thin films with the subsequent annealing in selenium vapour. The depth profile distribution of elements in these samples using the Rutherford backscattering spectrometry/channeling technique in conjunction with the RUMP code simulation is also discussed.
Źródło:
Acta Physica Polonica A; 2015, 128, 5; 927-930
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Elemental Composition, Topography and Wettability of $Pb_{x}Sn_{1 - x}S$ Thin Films
Autorzy:
Tashlykov, I.
Turavets, A.
Gremenok, V.
Żukowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/1366292.pdf
Data publikacji:
2014-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.37.Ps
06.30.Bp
Opis:
PbSnS thin films were prepared by hot-wall vacuum evaporation. The Rutherford backscattering technique was employed for the investigation of $Pb_{x}Sn_{1 - x}S$ thin films composition. With a help of atomic force microscopy the main stages in the development of the thin films were characterized. Contact angle measurements of water drop on $Pb_{x}Sn_{1 - x}S$ thin films have been conducted on our original setup.
Źródło:
Acta Physica Polonica A; 2014, 125, 6; 1339-1343
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of the Morphological Structure of Thin Cobalt Films by AFM and TEM
Autorzy:
Szmaja, W.
Balcerski, J.
Kozłowski, W.
Grobelny, J.
Cichomski, M.
Powiązania:
https://bibliotekanauki.pl/articles/1813598.pdf
Data publikacji:
2008-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.55.Jk
68.37.Ps
68.37.Lp
Opis:
Thin obalt films, 40 nm and 100 nm in thickness, were evaporated at an incidence angle of 45° in a vacuum of about $10^{-5}$ mbar, simultaneously on unheated glass substrates and NaCl crystals. The magnetic microstructure of these films was investigated in a previous paper. In the present paper, to obtain an insight into relation between the magnetic microstructure and the morphological structure, we studied the latter structure with atomic force microscopy and transmission electron microscopy. For the films 40 nm as well as 100 nm thick, the presence of contribution of the shape anisotropy (related to the geometric alignment of the grains of the film) to the magnetic anisotropy of the film was found. Nevertheless, for the films investigated, we could not detect crystallographic texture.
Źródło:
Acta Physica Polonica A; 2008, 113, 1; 171-174
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Submicron Structure in Biocompatible Ferrofluids
Autorzy:
Matei, G.
Airinei, A.
Creanga, D.-E.
Powiązania:
https://bibliotekanauki.pl/articles/2044765.pdf
Data publikacji:
2006-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.37.Lp
68.37.Ps
78.30.-j
Opis:
This paper presents a comparative study between the microstructural features of two water-ferrofluids intended for biological applications. In both cases the ferrophase was prepared by auto-catalytic reaction between ferrous and ferric salts and resulted in magnetite and some maghemite precipitates. The difference is given by the stabilizer molecule: tetramethylammonium hydroxide and, respectively, citric acid. Transmission electron microscopy and atomic force microscopy were utilized for ferrophase size investigation. The evidence of short chains and large aggregates was obtained mainly by atomic force microscopy analysis (the tip diameter being equal to 5 nm). Their role in the ferrofluid rheological properties was studied by carrying out comparative measurements of viscosity and surface tension. Complementary investigation of the ferrofluid composition was done by means of IR absorption spectra. The suitability of the prepared ferrofluids for biological goals was proved by their convenient ferrophase diameter as well as by their stability in time.
Źródło:
Acta Physica Polonica A; 2006, 109, 3; 405-409
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microstructure of the Pulsed Laser Deposited LaSrCuO Films
Autorzy:
Cieplak, M. Z.
Abal'oshev, A.
Zaytseva, I.
Berkowski, M.
Guha, S.
Wu, Q.
Powiązania:
https://bibliotekanauki.pl/articles/2046751.pdf
Data publikacji:
2006-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.55.-a
68.55.Jk
68.37.Ps
Opis:
The X-ray diffraction and atomic force microscopy are used to examine the microstructure of La$\text{}_{1.85}$Sr$\text{}_{0.15}$CuO$\text{}_{4}$ films grown by pulsed laser deposition on LaSrAlO$\text{}_{4}$ substrates. The films grow with different degrees of built-in strain, ranging from a large compressive to a large tensile in-plain strain. The tensile strain cannot be attributed to a substrate-related strain. The possible origins of the tensile strain are discussed.
Źródło:
Acta Physica Polonica A; 2006, 109, 4-5; 573-576
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface Morphological Properties of Mo-Based Thin Films on Glass
Autorzy:
Tashlykov, I.
Turavets, A.
Zukowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/1400442.pdf
Data publikacji:
2013-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
88.40.jm
68.08.Bc
68.37.Ps
Opis:
In that report we observe the initial stages in the process of film growth at different irradiation doses. Investigations of influence of Mo deposition on glass substrates by means of self-ion-assisted deposition on its topography (atomic force microscopy) and wettability (sessile-drop method) were carried out. It was found out that with an increase of the irradiation dose, the average roughness and the contact angle increases rapidly at first and then decrease. 2.45-2.77 increase in the contact angle of water when Mo-based coating was deposited on the glass was observed.
Źródło:
Acta Physica Polonica A; 2013, 123, 5; 840-842
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
AFM Observation of Fe-Al Single Crystals under in situ Deformation
Autorzy:
Veselý, J.
Cieslar, M.
Kopeček, J.
Powiązania:
https://bibliotekanauki.pl/articles/1419056.pdf
Data publikacji:
2012-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.35.bd
62.20.F-
68.37.Ps
Opis:
Fe-Al single crystals of three different compositions (20, 28 and 40 at.% Al) in single slip orientation were studied. Evolution of their surfaces during deformation at room temperature was observed in situ in atomic force microscope. Atomic force microscopy allows us to investigate slip lines on much finer scale than traditional optical observations. Wavy slip bands in $Fe-Al_{20},$ cross-slip in $Fe-Al_{28}$ and weak slip line texture in $Fe-Al_{40}$ are described. Post mortem observations of surfaces of $Fe-Al_{28}$ deformed at elevated temperatures (in the range of yield stress anomaly) are presented as well.
Źródło:
Acta Physica Polonica A; 2012, 122, 3; 618-621
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structural Properties and Temperature Behaviour οf Optical Absorption Edge in Polycrystalline ZnO:X (Cu,Ag) Films
Autorzy:
Kulyk, B.
Figà, V.
Kapustianyk, V.
Panasyuk, M.
Serkiz, R.
Demchenko, P.
Powiązania:
https://bibliotekanauki.pl/articles/1400391.pdf
Data publikacji:
2013-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.37.Ps
78.40.Fy
68.55.ag
Opis:
Silver- and copper-doped ZnO films were prepared by radio-frequency magnetron sputtering on glass substrates. The influence of dopants content on the structural, morphological properties as well as on evolution of the optical absorption edge was considered. It has been found that Ag- and Cu-doped ZnO films are characterized by wurtzite crystalline structure with the preferred direction of crystalline orientation (002). The sizes of grains within the films were found to be dependent on the type of dopant. The temperature evolution of the optical absorption edge is described by the modified Urbach rule that reflects polycrystalline nature of the material. The corresponding parameters concerning electron- (exciton-) phonon interaction, phonon energies and temperature changes of the band-gap were determined and analysed.
Źródło:
Acta Physica Polonica A; 2013, 123, 1; 92-97
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of Thermal Annealing and Film Thickness on the Structural and Morphological Properties of Titanium Dioxide Films
Autorzy:
Çörekçí, S.
Kızılkaya, K.
Asar, T.
Öztürk, M.
Çakmak, M.
Özçelík, S.
Powiązania:
https://bibliotekanauki.pl/articles/1491428.pdf
Data publikacji:
2012-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.55.J-
61.05.cp
68.37.Ps
Opis:
Titanium dioxide $(TiO_2)$ thin films having different thicknesses of 220, 260, and 300 nm were deposited onto well-cleaned n-type silicon substrates by reactive DC magnetron sputtering and annealed in the range of 200-1000C in steps of 200°C. The effects of thermal annealing and thickness variation on the crystalline quality and surface morphology of the films were investigated by X-ray diffraction and atomic force microscopy measurements. It was found that the film quality and morphology depend on the annealing temperature. $TiO_2$ films exhibit a grain-like surface morphology. The root-mean-square roughness and grain size on the surface increase as a result of increasing film thickness.
Źródło:
Acta Physica Polonica A; 2012, 121, 1; 247-248
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nanostructure of Thin Gold Films Investigated by Means of Atomic Force Microscopy and X-Ray Reflectometry Methods
Autorzy:
Żymierska, D.
Auleytner, J.
Domagała, J.
Kobiela, T.
Duś, R.
Powiązania:
https://bibliotekanauki.pl/articles/2035502.pdf
Data publikacji:
2002-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.55.-a
68.37.Ps
61.10.Kw
Opis:
A study of the thin gold film growth, during the deposition on glass substrate under UHV conditions at low temperatures, is presented. The complementary methods, the atomic force microscopy and grazing incidence X-ray reflectometry, are used for the research. It is shown that due to variation of the time of deposition from 2 to 50 min different kinds of thin Au films nanostructures are obtained: from discontinuous films consisting of isolated islands, via formation of the chains of islands, up to continuous films.
Źródło:
Acta Physica Polonica A; 2002, 102, 2; 289-294
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structure and Cathodoluminescence of Y₂O₃:Eu Thin Films obtained at Different Conditions
Autorzy:
Bordun, I.
Bordun, O.
Kukharskyy, I.
Tsapovska, Zh.
Powiązania:
https://bibliotekanauki.pl/articles/1030939.pdf
Data publikacji:
2018-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.37.Ps
78.60.Hk
81.15.-z
Opis:
The structure of the surface and spectra of the cathodoluminescence of Y₂O₃:Eu thin films when changing the activator concentration in the range 1.0-7.5% by mole obtained by RF sputtering were investigated. On the base of the shape of the cathodoluminescence spectra at different concentrations of the activator, the possibility of irregular solutions creating of yttrium and europium oxides and the structural features of the small and large crystallites forming the film Y₂O₃:Eu is shown. The dependence of the cathodoluminescence intensity on the energy of the exited electrons and current density of electron irradiation was established.
Źródło:
Acta Physica Polonica A; 2018, 133, 4; 914-917
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of the Properties of Molybdenum Nanocube Crystals Deposited by Dc Sputtering
Autorzy:
Borghei, S.
Powiązania:
https://bibliotekanauki.pl/articles/1398729.pdf
Data publikacji:
2016-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.15.Cd
81.07.-b
68.37.Ps
Opis:
Cubic molybdenum (Mo) nanocubes were deposited on a silicon substrate via dc sputtering. This method has been widely used to prepare the thin films containing the crystalline nanostructures. We used this approach to deposition and after that, the characterization of Mo nanocubes. Formation of these cubes was investigated by atomic force microscopy, X-ray diffractometry and four point probes, respectively. First, the mean sizes of the molybdenum cubic nanoparticles were studied under different Mo film thicknesses of 50, 80, 110, and 140 nm. Structural characterizations indicate that the as-deposited Mo nanocubes have different side-length and their distribution over the surface has been measured, separately. In the next step, according to the X-ray diffractometry, Mo crystallites were all along the (110) crystal planes of cubic structure. Finally, electrical characterizations reported that at a deposition power of 54 W, our samples exhibit an electrical resistivity, in the range of 0.92×10¯⁴ Ω cm to 0.58×10¯⁴ Ω cm.
Źródło:
Acta Physica Polonica A; 2016, 129, 4; 607-609
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy Dissipation in the AFM Elasticity Measurements
Autorzy:
Klymenko, O.
Wiltowska-Zuber, J.
Lekka, M.
Kwiatek, W.
Powiązania:
https://bibliotekanauki.pl/articles/1809585.pdf
Data publikacji:
2009-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.37.Ps
87.10.Vg
87.15.La
Opis:
Nowadays, it is well established that changes of cell stiffness observed by atomic force microscopy are linked with the cell cytoskeleton. Its structural and functional alterations are underlying major diseases such as cancer, inflammation or neurodegenerative disorders. So far, the use of atomic force microscopy is mostly focused on the determination of the Young modulus using the modified Hertz model. It can quantitatively describe the elastic properties of living cells, however, its value is burdened by the fact that cells are neither isotropic nor homogeneous material. Often, during the atomic force microscopy measurements, the hysteresis between the loading and unloading curves are observed which indicates the dissipation of an energy. In our studies, the index of plasticity was introduced to enumerate such effect during a single loading-unloading cycle. As the results show, such approach delivers an additional parameter describing the mechanical state of cell cytoskeleton. The analysis was performed on test samples where the mechanical properties of the melanoma cells were changed by glutaraldehyde and cytochalasin D treatments. The non-treated cells were compared with fibroblasts.
Źródło:
Acta Physica Polonica A; 2009, 115, 2; 548-551
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microstructure and Thermally Stimulated Luminescence of β -Ga₂O₃ Thin Films
Autorzy:
Bordun, O.
Bordun, B.
Medvid, I.
Kukharskyy, I.
Powiązania:
https://bibliotekanauki.pl/articles/1052882.pdf
Data publikacji:
2018-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.37.Ps
78.60.-b
81.15.-z
Opis:
Thermally stimulated luminescence of X-ray irradiated β -Ga₂O₃ thin films was investigated. An analysis of the form of the elementary contours making the thermally stimulated luminescence curves shows that recombination processes at the thermally stimulated luminescence peaks with maxima at 77, 135, 178, and 235 K in thin films of β -Ga₂O₃ are described in terms of linear kinetics. The spectral composition of the thermally stimulated luminescence of the thin films was studied. Some methods are employed to determine the activation energies and frequency factors corresponding to the thermally stimulated luminescence peaks. It is established that the recombination processes occurring upon release of the trapping centers in thin films β -Ga₂O₃ are conditioned by diffusion-controlled tunneling recombination due to thermally-stimulated migration of V_{k}-centers.-
Źródło:
Acta Physica Polonica A; 2018, 133, 4; 910-913
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł

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