Wszystkie pola: Admittance - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Admittance and Permittivity in Doped Layered $TlGaSe_2$ Single Crystals
Autorzy:: Dawood, S.
Fedotov, A.
Mammadov, T.
Zukowski, P.
Koltunowicz, T.
Saad, A.
Drozdov, N.
Powiązania:: https://bibliotekanauki.pl/articles/1365735.pdf
Data publikacji:: 2014-06
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.61.Ey
84.37.+q
64.70.Nd
Opis:: In doped $TlGaSe_2$ crystals the phase transitions at low temperatures (100-170 K) were observed using admittance and dielectric spectroscopy in a temperature range of 80-320 K. The admittance and permittivity measurements in the studied samples indicated that after Fe or Tb doping by impurities with concentrations $N_\text{imp}$ < 0.5 at.% nonequilibrium electronic phase transition is observed. Doping with $N_\text{imp}$ > 0.5 at.% resulted in full suppression of this phase transition presence.
Źródło:: Acta Physica Polonica A; 2014, 125, 6; 1267-1270
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: The Features of Real Part of Admittance in the Nanocomposites $(Fe_{45}Co_{45}Zr_{10})_{x}(Al_2O_3)_{100 - x}$ Manufactured by the Ion-Beam Sputtering Technique with Ar Ions
Autorzy:: Kołtunowicz, T.
Zhukowski, P.
Fedotova, V.
Saad, A.
Larkin, A.
Fedotov, A.
Powiązania:: https://bibliotekanauki.pl/articles/1503798.pdf
Data publikacji:: 2011-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 79.20.Rf
73.22.-f
84.37.+q
72.20.Ee
Opis:: The temperature and frequency dependences of the admittance real part σ (T, f) in granular $(Fe_{45}Co_{45}Zr_{10})_{x}(Al_2O_3)_{100 - x}$ nanocomposite films around the percolation threshold $x_{C}$ were investigated. The behaviour of σ (T, f) vs. the temperature and frequency over the ranges 77-300 K and 50 Hz-1 MHz, respectively, displays the predominance of an activation (hopping) conductance mechanism for the samples below the percolation threshold $x_{C}$ and of a metallic one beyond the $x_{C}$ determined as 54 ± 2 at.%. The mean hopping range d for the nanoparticles diameter D was estimated at different metallic phase content x.
Źródło:: Acta Physica Polonica A; 2011, 120, 1; 35-38
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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