Temat: 61.72.Dd - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Observation of Superconductivity in Highly Cr-Doped GaP Single Crystals
Autorzy:: Gosk, J. B.
Strzelecka, G.
Kowalski, G.
Hruban, A.
Kamińska, M.
Twardowski, A.
Gronkowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/2046913.pdf
Data publikacji:: 2006-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.10.+v
75.50.Pp
61.72.Vv
61.72.Dd
81.10.Dn
Opis:: Studying bulk GaP, highly doped with Cr, and searching for possible ferromagnetic semiconductor in view of spintronic applications, we found superconducting behavior of this material unexpectedly. Magnetization techniques and X-ray diffraction were applied to study these crystals. Magnetization revealed superconducting features up to about 6 K and X-ray studies showed that superconductivity might be related to small size Cr precipitates.
Źródło:: Acta Physica Polonica A; 2006, 110, 2; 189-193
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Effect of Density Gradient on the Acousto-Electric Wave Instability in Ion-Implanted Semiconductor Plasmas
Autorzy:: Ghosh, S.
Khare, Pragati
Powiązania:: https://bibliotekanauki.pl/articles/2044639.pdf
Data publikacji:: 2006-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.72.Vv
72.30.+q
82.70.Dd
Opis:: Using hydrodynamic model of inhomogeneous plasma, an analytical investigation of excitation of acousto-electric mode was made in n-type piezoelectric ion-implanted semiconductor plasma. By employing the multi-fluid balance equations along with the elastic and Maxwell equations, a compact dispersion relation for the cases in which colloidal grains are either stationary (ϑ$\text{}_{0d}$=0) or streaming (ϑ$\text{}_{0d}$≢0$) is derived. We find that the choice of homogeneous medium is favorable in achieving higher acoustic gain per radian and the results of the investigation should be useful in understanding the characteristics of longitudinal acousto-electric wave in ion-implanted piezoelectric semiconductor whose main constituents are electrons and negatively charged colloidal particles.
Źródło:: Acta Physica Polonica A; 2006, 109, 2; 187-197
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: The Numerical Solution of the Imaginary-Axis Eliashberg Equations
Autorzy:: Szczęśniak, R.
Powiązania:: https://bibliotekanauki.pl/articles/2044638.pdf
Data publikacji:: 2006-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.72.Vv
72.30.+q
82.70.Dd
Opis:: In the paper, we solve the imaginary-axis Eliashberg equations. We calculate numerically self-consistently the superconducting order function, the wave function renormalization factor, and the energy shift function as a function of the Matsubara frequency. We consider different values of the average number of the electrons per lattice site. Additionally, we study the temperature dependence of the order function and the wave function renormalization factor. The possible extension of the Eliashberg theory to the case of the high-T$\text{}_{C}$ superconductors was also briefly discussed.
Źródło:: Acta Physica Polonica A; 2006, 109, 2; 179-186
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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