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Wyszukujesz frazę "Kaminski, M." wg kryterium: Autor


Wyświetlanie 1-10 z 10
Tytuł:
The Measurement of $YBa_2Cu_3O_{7-δ}$ Single Crystals Using the Atomic/Magnetic Force Microscopy
Autorzy:
Kamiński, M.
Wróblewski, M.
Susła, B.
Powiązania:
https://bibliotekanauki.pl/articles/1812278.pdf
Data publikacji:
2008-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.37.Ps
68.37.Rt
74.70.-b
75.75.+a
Opis:
In this paper the experimental investigations of the $YBa_2Cu_3O_{7-δ}$ single crystal, using atomic force microscopy and magnetic force microscopy, are presented. The atomic force microscopy was used to identify oxidized and unoxidized $YBa_2Cu_3O_{7-δ}$ crystal. The $YBa_2Cu_3O_{7-δ}$ single oxidized crystal was examined for magnetic properties by means of magnetic force microscopy. The research was carried out at a room temperature and in the air atmosphere without external magnetic field.
Źródło:
Acta Physica Polonica A; 2008, 114, 1; 91-97
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Scanning Tunnelling Spectroscopy of Periodic Nickel Nanoparticles
Autorzy:
Kamiński, M.
Susła, B.
Giersig, M.
Kandulski, M.
Powiązania:
https://bibliotekanauki.pl/articles/2036951.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.37.Ef
61.48.+w
Opis:
Scanning tunneling microscopy/spectroscopy as well as atomic force microscopy were applied to study the non-structural and nanoelectronic properties of periodic nickel nanoparticles deposited on n-silicon substrates. Periodic nickel (Ni) nanoparticles were prepared by using nanosphere lithography and analyzed by scanning tunneling microscopy/spectroscopy and atomic force microscopy. By the evaporation of Ni perfectly ordered nanoparticles were produced and very good correlation between latex mask was observed. Finally, tunneling spectroscopy performed with non-magnetic tip yield information about local electronic properties of nanoscale structures at surface.
Źródło:
Acta Physica Polonica A; 2003, 104, 3-4; 351-356
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Study of Electron Properties of Carbon Nanotubes Deposited on Highly Orientated Pyrolytical Graphite Using Scanning Probe Spectroscopy
Autorzy:
Kamiński, M.
Wróblewski, M.
Cęgiel, M.
Susła, B.
Powiązania:
https://bibliotekanauki.pl/articles/2047328.pdf
Data publikacji:
2007-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.37.Ef
73.63.Fg
73.63.-b
Opis:
In this paper we present experimental investigations of carbon nanotubes deposited on highly orientated pyrolytical graphite using scanning tunneling microscopy and scanning tunneling spectroscopy. The aforementioned methods apart from detailed topographic data provided us with information about local density of state. We also show the I-V and dI/dV characteristics, which display the metallic and semiconducting characters of investigated carbon nanotubes. All measurements were taken in the air and at room temperature.
Źródło:
Acta Physica Polonica A; 2007, 111, 5; 661-669
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mechanical Properties of the Stellite 6 Cobalt Alloy Implanted with Nitrogen Ions
Autorzy:
Budzyński, P.
Kamiński, M.
Wiertel, M.
Pyszniak, K.
Droździel, A.
Powiązania:
https://bibliotekanauki.pl/articles/1030127.pdf
Data publikacji:
2017-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.55.Ln
62.20.Qp
61.82.Bg
61.80.-x
Opis:
The effect of nitrogen ion implantation on Stellite 6 cobalt alloy was investigated. In this research, cobalt alloy was implanted with 65 keV nitrogen ions at the fluence of (1÷10)×10¹⁶ N⁺/cm². The distribution of implanted nitrogen ions and vacancies produced by them was calculated using the SRIM program. The surface morphology was examined and the elemental analysis was performed using scanning electron microscopy, energy dispersive X-ray spectroscopy and grazing incidence X-ray diffraction. The wear tests were conducted with the use of the pin-on-disc method. The results demonstrate that implantation with nitrogen ions significantly reduces the friction factor and wear. The friction coefficient of the implanted sample at the fluence of 1×10¹⁷ N⁺/cm² increased to the values characteristic of an unimplanted sample after 5000 measurement cycles. The depth of the worn trace was about 2.0 μm. This implies that the thickness of the layer modified by the implantation process is ≈2.0 μm and exceeds the initial range of the implanted ions by an order of magnitude. This is referred to as a long-range implantation effect. The investigations have shown that the long-range effect is caused by movement of not only implanted nitrogen atoms but also carbon dopant atoms towards the friction zone. Diffusion of carbon atoms has been documented here for the first time. Furthermore, the increased content of oxygen atoms on the track bottom indicates a dominant oxidative wear of the Stellite samples after nitrogen implantation with the energy 65 keV and the fluences of 5×10¹⁶ and 10¹⁷ N⁺/cm².
Źródło:
Acta Physica Polonica A; 2017, 132, 2; 203-205
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Scanning Tunneling Spectroscopy and Luminescent Properties of ZnS:Mn,Cu,Cl Thin Films
Autorzy:
Neunert, G.
Kamiński, M.
Susła, B.
Dunaj, T.
Chimczak, E.
Bertrandt-Żytkowiak, M.
Powiązania:
https://bibliotekanauki.pl/articles/2036945.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.60.Fi
78.66.Hf
68.37.Ef
Opis:
Electrical and luminescent properties of ZnS:Mn,Cu,Cl thin films were investigated. Combined both studies: scanning tunneling microscopy and scanning tunneling spectroscopy were made. The current and differential conductance versus applied voltage were measured for the ZnS:Mn,Cu,Cl thin films. Additionally, the spectral and kinetic properties of the electroluminescent cells based on the ZnS:Mn,Cu,Cl thin films were measured. The maximum of the electroluminescence lies at 586 nm. The electroluminescence was excited by rectangular wave voltage pulses with pulse length from 1μs to 1 ms. It was shown that time dependence of the electroluminescence is well explained assuming energy transfer between monomolecular centres.
Źródło:
Acta Physica Polonica A; 2003, 104, 3-4; 357-363
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Thermomagnetic Treatment on Magnetoelastic Properties of FeNiMoB Amorphous Alloy
Autorzy:
Szewczyk, R.
Svec, P.
Salach, J.
Švec, P.
Bieńkowski, A.
Hoško, J.
Jackiewicz, D.
Kamiński, M.
Winiarski, W.
Powiązania:
https://bibliotekanauki.pl/articles/1366528.pdf
Data publikacji:
2014-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.80.+q
75.50.Kj
Opis:
Paper presents the results of magnetoelastic tests of ring-shaped cores made of $Fe_{40}Ni_{38}Mo_{4}B_{18}$ amorphous alloy. The cores were subjected to thermomagnetic annealing under different values of magnetic field. The obtained results enabled us to connect the magnetoelastic characteristics of $Fe_{40}Ni_{38}Mo_{4}B_{18}$ amorphous alloy with the conditions of thermomagnetic treatment of the material.
Źródło:
Acta Physica Polonica A; 2014, 126, 1; 52-53
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Probabilistic Modeling of Delays in Data Transmission Systems with Wireless Network Interfaces Employing Random Strings Function
Autorzy:
Topór-Kamiński, T.
Grygiel, M.
Powiązania:
https://bibliotekanauki.pl/articles/1399406.pdf
Data publikacji:
2013-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
02.50.-r
06.90.+v
Opis:
The paper presents the concepts of model construction on transmission delays in systems with wireless interfaces using random series of function. It is a new method of modelling that allows us to use probabilistic description of time required to realise tasks in various devices. It also allows us to use time domain delta function series in order to describe the time of transmission of data between transmitter and receiver. In description of delays probability density function is applied. The model also takes into account existence of intermediary network devices that play a significant role in overall budget of delay.
Źródło:
Acta Physica Polonica A; 2013, 124, 3; 578-581
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Deep-Level Defects on Transient Photoconductivity of Semi-Insulating 4H-SiC
Autorzy:
Suproniuk, M.
Kamiński, P.
Kozłowski, R.
Pawłowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/1364028.pdf
Data publikacji:
2014-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
72.40.+w
71.55.-i
72.20.-i
Opis:
A model enabling the equilibrium conductivity and transient photoconductivity of semi-insulating 4H-SiC to be simulated has been demonstrated. Using this model, the simulations of both equilibrium conductivity and transient photoconductivity have been carried out. Both the simulation and experimental results have shown that the evolution of photoconductivity in time after switching on the band-to-band generation of electron-hole pairs is strongly affected by the properties of deep level defects. The results of transient photocurrent measurements confirm the simulations results indicating that the $Z_{1/2}$ center is a very effective recombination center in semi-insulating 4H-SiC having detrimental effect on the transient photoconductivity.
Źródło:
Acta Physica Polonica A; 2014, 125, 4; 1042-1048
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected Methods of Measuring the Delay in Data Transmission Systems with Wireless Network Interfaces
Autorzy:
Topor-Kaminski, T.
Żurkowski, R.
Grygiel, M.
Powiązania:
https://bibliotekanauki.pl/articles/1493274.pdf
Data publikacji:
2011-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
43.10.Pr
89.20.Hh
06.20.-f
06.20.Dk
07.05.Hd
Opis:
The article presents the concept of creating model of delays occurring in telecommunication system taking into account all sources of delays generated during data transmission between the source and destination nodes. Proposed model takes into account the existence of intermediary network devices that play a significant role in the general delay budget. The paper presents two measurement systems used to measure delays in 802.11 g based wireless networks and ones using ZigBee standard. Both systems were built based on the authors' concepts of hardware and software allowing measurement of delays by using additional connection for the synchronization of internal clocks. Described measurement systems selected amount of experiments was performed for varied network structures.
Źródło:
Acta Physica Polonica A; 2011, 120, 4; 748-754
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transition Metal-Related Centres in Silicon Studied by High-Resolution Deep Level Transient Spectroscopy
Autorzy:
Dobaczewski, L.
Kamiński, P.
Kozłowski, R.
Surma, M.
Powiązania:
https://bibliotekanauki.pl/articles/1933733.pdf
Data publikacji:
1995-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
73.40.Lq
71.55.Cn
68.55.Ln
Opis:
High-resolution Laplace-transform deep level transient spectroscopy technique has been used to study a fine structure in the carrier emission process for transition metal- and thermal donors-related defects in silicon. For the case of the transition metal centres the method revealed the fine structure when the defect has a similar emission characteristics to other defects in the crystal. The method also demonstrated the complex emission process for the thermal donors.
Źródło:
Acta Physica Polonica A; 1995, 88, 4; 703-706
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-10 z 10

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