Temat: 74.25.Qt - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Size Effect in Impedance of Nb$\text{}_{3}$Al Superconductor
Autorzy:: Aleksyeyev, P.
Nabiałek, A.
Vasiliev, S.
Rusakov, V.
Chabanenko, V.
Zalutskii, M.
Piechota, S.
Szymczak, H.
Kodess, B. N.
Powiązania:: https://bibliotekanauki.pl/articles/2046746.pdf
Data publikacji:: 2006-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.25.Qt
74.70.Ad
Opis:: We present the results of the impedance measurements in Nb$\text{}_{3}$Al superconducting polycrystalline alloy vs. temperature and magnetic field. Using these results and applying the size effect model we calculate the flux-flow conductivity of the Nb$\text{}_{3}$Al superconducting alloy near its critical temperature.
Źródło:: Acta Physica Polonica A; 2006, 109, 4-5; 555-559
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Oscillating Dynamics and Trajectory of the Single Vortex Line
Autorzy:: Rusakov, V.
Vasiliev, S.
Chabanenko, V. V.
Yurov, A.
Nabiałek, A.
Piechota, S.
Szymczak, H.
Powiązania:: https://bibliotekanauki.pl/articles/2046795.pdf
Data publikacji:: 2006-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.25.Qt
74.70.Ad
Opis:: The De Gennes and Matricon problem of finding the spectrum of oscillations of massive vortex line under the action of pinning and viscosity forces is solved. The obtained vibration spectrum of the vortex is discussed and the role of each contributing force is elucidated. The trajectory of the vortex motion is calculated and illustrated.
Źródło:: Acta Physica Polonica A; 2006, 109, 4-5; 641-646
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: The Influence of Fast Neutron Irradiation on the Magnetostriction of Ceramic YBa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7-δ}$ Sample
Autorzy:: Nabiałek, A.
Vasiliev, S.
Pytel, B.
Chabanenko, V. V.
Piechota, S.
Powiązania:: https://bibliotekanauki.pl/articles/2041474.pdf
Data publikacji:: 2004-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.25.Qt
74.72.Bk
75.80.+q
Opis:: We investigated the magnetostriction of ceramic YBa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7-δ}$ sample both before and after fast neutron irradiation with the fluency of 7.55×10$\text{}^{17}$ n/cm$\text{}^{2}$ and energy of above 0.5 MeV. We have found that after irradiation the widths of both transverse and longitudinal magnetostriction hysteresis loops at a given temperature and at a given external magnetic field increased several times. At 4.2 K and in 10 tesla the widths of the magnetostriction hysteresis loop of the irradiated sample are of an order of 10$\text{}^{-5}$. The results can be understood in the framework of the model of the magnetostriction induced by the pinning forces, assuming the stress in the sample to be induced mainly by the intragrain screening currents.
Źródło:: Acta Physica Polonica A; 2004, 106, 5; 739-744
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Giant Magnetostriction Jumps in Conventional NbTi Superconductor
Autorzy:: Nabiałek, A.
Vasiliev, S.
Chabanenko, V.
Aleksyeyev, P.
Rusakov, V.
Piechota, S.
Szymczak, H.
Powiązania:: https://bibliotekanauki.pl/articles/2046793.pdf
Data publikacji:: 2006-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.25.Qt
74.70.Ad
75.80.+q
Opis:: Magnetostriction of a large slab of conventional NbTi superconductor, with a diameter of about 6 mm, was investigated by the strain gauge technique. At the temperature of 4.2 K and in the external magnetic field of several T we found irreversible magnetostriction of an order of 10$\text{}^{-5}$, where the number means the relative changes of the slab diameter. This large magnetostriction is accompanied by giant magnetostriction jumps, caused by thermomagnetic avalanches. These thermomagnetic avalanches also cause giant jumps of the surface magnetization, which can be observed by using the Hall probes. The results were analyzed in the framework of the pinning induced magnetostriction model.
Źródło:: Acta Physica Polonica A; 2006, 109, 4-5; 633-639
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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