Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "81.05.Uw" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-9 z 9
    Tytuł:
    Electrochemical Impedance Spectroscopy Studies of HF CVD Diamond Films
    Autorzy:
    Kowalska, M.
    Fabisiak, K.
    Wrzyszczyński, A.
    Szybowicz, M.
    Paprocki, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1401916.pdf
    Data publikacji:
    2015-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.05.Uw
    81.07.-b
    78.66.-w
    Opis:
    Diamond films were synthesized by a hot filament vapor deposition method using H₂/CH₄ gas mixtures. A Hioki impedance analyzer was used to study the dielectric properties of the deposited diamond films. The dielectric dispersion measurement yielded the real and imaginary parts of impedance of diamond films in the form of a Nyquist plot in a complex plane. The obtained results were fitted by using equivalent circuit which consists of three impedance (Z) components containing resistor R and capacitor C or constant phase element connected in parallel. The structure and quality of diamond films were analyzed by scanning electron microscopy and the Raman spectroscopy. The impedance measurements showed that concentration of non-diamond admixture has essential influence on electrochemical properties of diamond layers.
    Źródło:
    Acta Physica Polonica A; 2015, 128, 3; 447-451
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative Studies on Giant Magnetoresistance in Carbon Nanotubes and Graphene Nanoribbons with Ferromagnetic Contacts
    Autorzy:
    Krompiewski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1810558.pdf
    Data publikacji:
    2009-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    85.35.Kt
    81.05.Uw
    75.47.De
    73.23.Ad
    Opis:
    This contribution reports on comparative studies on giant magnetoresistance in carbon nanotubes and graphene nanoribbons of similar aspect ratios (i.e. perimeter/length and width/length ratios, for the former and the latter, respectively). The problem is solved at zero temperature in the ballistic transport regime, by means of the Green functions technique within the tight-binding model and with the so-called wide band approximation for electrodes. The giant magnetoresistance effect in graphene is comparable to that of carbon nanotubes, it depends strongly on the chirality and only slightly on the aspect ratio. It turns out that graphene, analogously to carbon nanotubes may be quite an interesting material for spintronic applications.
    Źródło:
    Acta Physica Polonica A; 2009, 115, 1; 319-321
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    High Heat Flux Testing of Doped and Coated Graphite Using High-Intensity Pulsed Ion Beam
    Autorzy:
    Zhu, X.
    Liu, C.
    Lei, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1807981.pdf
    Data publikacji:
    2009-06
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    28.52.Fa
    52.59.Mv
    81.05.Uw
    Opis:
    A high-intensity pulsed ion beam (HIPIB) technique is applied to heat flux testing of plasma facing materials for fusion experiment. The HIPIB is generated at a relatively stable power density up to $10^{8}$ W/$cm^{2}$, which covers a heat flux parameter of up to several hundreds MW $m^{-2} s^{1//2}$. Surface morphology and weight loss are examined for doped and coated graphite with HIPIB exposure of 280 MW $m^{-2} s^{1//2}$, being of the same order of thermal loads during off-normal events in future fusion reactors. The work demonstrates a first example utilizing the HIPIB technique to study thermal response of plasma facing materials under fusion relevant thermal loads.
    Źródło:
    Acta Physica Polonica A; 2009, 115, 6; 1177-1179
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Deposition of Amorphous Hydrogenated Carbon Coatings by Plasma Jet
    Autorzy:
    Marcinauskas, L.
    Grigonis, A.
    Manikowski, H.
    Valincius, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/1813408.pdf
    Data publikacji:
    2008-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.15.-z
    81.05.Uw
    78.30.-j
    Opis:
    In this study amorphous hydrogenated carbon films (a-C:H) were formed on Si (111) from an $Ar-C_2H_2$ and $Ar-C_2H_2-H_2$ gas mixtures at 1000 Pa pressure using a plasma jet chemical vapour deposition. It is shown that by varying the $Ar:C_2H_2$ ratio and adding the hydrogen gas in plasma, the structure, surface morphology, growth rate of the coatings, and consequently their optical properties can be controlled.
    Źródło:
    Acta Physica Polonica A; 2008, 113, 3; 1063-1066
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of $H_2:CH_4$ Plasma Composition by Means of Spatially Resolved Optical Spectroscopy
    Autorzy:
    Bogdanowicz, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1811532.pdf
    Data publikacji:
    2008-12
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    85.60.-q
    42.81.-i
    07.57.-c
    42.15.Eq
    32.30.-r
    52.50.Sw
    81.05.Uw
    Opis:
    The system based on spatially resolved optical emission spectroscopy dedicated for in situ diagnostics of plasma assisted CVD processes is presented in this paper. Measurement system coupled with chemical vapour deposition chamber by dedicated fiber-optic paths enables investigation of spatial distribution of species densities ($H_x$, $H^+$, CH, $CH^+$) during chemical vapour deposition process. Experiments were performed for a various gas inlet configuration at range of microwave power up to 800 W. Spatially resolved optical spectroscopy results showed that inlet configuration based on injecting hydrogen in ECR region and methane in substrate area is the most efficient for $H^+$ and $CH_{3}^{+}$ excitation. The designed prototype of the spatially resolved optical spectroscopy system enables the high-sensitivity measurements of concentration of the species in the microwave plasma and can be used for optimisation of diamond-like carbon synthesis.
    Źródło:
    Acta Physica Polonica A; 2008, 114, 6A; A-33-A-38
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of Electromagnetic Wave Absorber Based on Carbon Fiber Reinforced Aerated Concrete Using Time-Domain Method
    Autorzy:
    Laukaitis, A.
    Sinica, M.
    Balevičius, S.
    Levitas, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1813404.pdf
    Data publikacji:
    2008-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    41.20.Jb
    81.05.Uw
    Opis:
    The electromagnetic wave absorbers prepared from autoclaved aerated concrete containing carbon fibers as additions in the shape of slabs with pyramids cut on one plane of these slabs were tested using dc microwave source and the time-domain method. It was demonstrated that autoclaved aerated concrete allows one to fabricate electromagnetic wave absorbers which have a reflection coefficient up to -30 dB in the frequency range from 2 GHz to 18 GHz.
    Źródło:
    Acta Physica Polonica A; 2008, 113, 3; 1047-1050
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Graphenes Bonding Forces in Graphite
    Autorzy:
    Rozpłoch, F.
    Patyk, J.
    Stankowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/2047742.pdf
    Data publikacji:
    2007-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    73.20.-r
    81.05.Uw
    Opis:
    Graphenes bonding forces in graphite are widely known as an example of the van der Waals forces. Well-known experimental facts relative to graphite negate this. A comparison of physical properties of graphite and molecular crystals and metals is shown. A model of dominant weak metallic bonding forces between graphenes is proposed. Brief theoretical background to the model is given.
    Źródło:
    Acta Physica Polonica A; 2007, 112, 3; 557-562
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Luminescence from β-Irradiated Graphene Layers
    Autorzy:
    Chruścińska, A.
    Przegiętka, K. R.
    Szroeder, P.
    Oczkowski, H. L.
    Rozpłoch, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/2046889.pdf
    Data publikacji:
    2006-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    77.60.Kn
    78.60.-b
    78.67.Ch
    81.05.Uw
    Opis:
    We found that β-irradiated samples of crystallite graphite and multi-walled carbon nanotubes emit light during heating above room temperature. This behaviour is rather surprising for semimetals. Due to the lack of deep enough energy gap, this optical emission cannot be associated with interband transitions, as it is usually assumed in a thermally stimulated luminescence model. We suppose that the reported accumulated luminescence is the result of thermally stimulated relaxation of some kind of defects created in graphene structures by ionising radiation and therefore we offer to name it the relaxoluminescence. We anticipate the relaxoluminescence to be a starting point for developing a new spectroscopic method for nanotechnology. It can also throw a new light on the nature of defects, which are suspected of being responsible for strange magnetic effects in carbon.
    Źródło:
    Acta Physica Polonica A; 2006, 110, 1; 71-80
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetism in Carbon: Writing Magnetic Structures with a Proton Micro-Beam on Graphite Surfaces
    Autorzy:
    Schindler, K.
    Spemann, D.
    Ziese, M.
    Esquinazi, P.
    Butz, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/2044648.pdf
    Data publikacji:
    2006-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.40.Rs
    75.50.Pp
    81.05.Uw
    Opis:
    Recent publications demonstrated the generation of magnetic order at room temperature on graphite surfaces after irradiation with protons. In this contribution we show that it is possible to produce magnetic structures in the micrometer range using a proton micro-beam by proton irradiation of the surface of highly oriented pyrolytic graphite samples. The experimental results are compared with micromagnetic simulations.
    Źródło:
    Acta Physica Polonica A; 2006, 109, 3; 249-255
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies