Autor: Chen, W.Y. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Microstructure and Magnetic Properties of Magnetron-Sputtered [Fe/Pt]ₙ Multilayer Films
Autorzy:: Zhang, Y.
Yu, W.
Chen, F.
Liu, M.
Li, H.
Powiązania:: https://bibliotekanauki.pl/articles/1401879.pdf
Data publikacji:: 2015-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 68.55.Jk
75.50.Ss
Opis:: [Fe/Pt]ₙ multilayer films were prepared on thermally oxidized Si (100) substrates at 300°C using dc magnetron sputtering and annealed for different temperature ranging from 350 to 500°C. It is found that the as-deposited [Fe/Pt]ₙ multilayer films exhibit well-resolved periodic structures and low roughness of interface. The ordering degree of the annealed films decreases and their perpendicular magnetic anisotropy deteriorates with increasing the period number. Fe/Pt bilayer film annealed at 350°C shows (001) orientation and hard magnetic characteristic, the coercivity and perpendicular anisotropy enhance with increase of annealing temperature. In addition, the hard and soft magnetic phases are not fully magnetically coupled in the Fe/Pt film annealed at higher temperature.
Źródło:: Acta Physica Polonica A; 2015, 128, 3; 326-330
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: The Design and the First Test Results of a Fast LTD Stage
Autorzy:: Chen, L.
Zhou, L.
Zou, W.
Ren, J.
Li, Y.
Wu, S.
Xie, W.
Feng, S.
Deng, J.
Powiązania:: https://bibliotekanauki.pl/articles/1807988.pdf
Data publikacji:: 2009-06
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 84.70.+p
52.75.Kq
84.60.Ve
Opis:: Linear transformer driver stages are designed to be used as a primary energy storage in high power pulsed generators. In this report, the design and test results of the linear transformer driver stage prototype that delivers ≈100 kA fast pulse with 133 ns FWHM into a ≈0.87 Ω resistive load are described. This stage consists of 20 (100 kV, 20 nF) storage capacitors that are arranged in 10 identical bricks located evenly around the axis of the stage. Each brick contains two capacitors, a multi-gap switch, and the output connector that transfers the energy to the resistive load. The outer diameter of the stage is ≈1.5 m, at a length of ≈20 cm. The stage is developed to demonstrate the possibility of the fast linear transformer driver technology to create high power pulsed generators.
Źródło:: Acta Physica Polonica A; 2009, 115, 6; 1186-1188
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Electron Transport and Microwave Noise in MBE- and MOCVD-Grown AlGaN/AlN/GaN
Autorzy:: Matulionis, A.
Liberis, J.
Eastman, L. F.
Schaff, W. J.
Shealy, J. R.
Chen, X.
Sun, Y. J.
Powiązania:: https://bibliotekanauki.pl/articles/2041771.pdf
Data publikacji:: 2005-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 63.20.Kr
72.20.Ht
73.40.Kp
Opis:: Microwave noise temperature, current, and dissipated power were investigated at room temperature in undoped AlGaN/AlN/GaN channels grown by molecular beam epitaxy and metal-organic compound vapour decomposition techniques. Samples with essentially the same electron density (1×10$\text{}^{13}$ cm$\text{}^{-2}$) and low-field mobility (1150 cm$\text{}^{2}$/(V s)) demonstrated considerably different behaviour at high electric fields. The effective hot-phonon lifetime, 300 fs and 1000 fs, respectively, was estimated for molecular beam epitaxy and metal-organic compound vapour decomposition samples. The expected anti-correlation of hot-phonon lifetime and hot-electron drift velocity was confirmed experimentally.
Źródło:: Acta Physica Polonica A; 2005, 107, 2; 361-364
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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