Autor: Kumala, W. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Stable States for Superconducting Systems with Combined S-Wave and D-Wave Pairing. Zero Temperature Case
Autorzy:: Kumala, W.
Gonczarek, R.
Powiązania:: https://bibliotekanauki.pl/articles/1968863.pdf
Data publikacji:: 1998-03
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.20.-z
Opis:: The Fermi-liquid system with S-wave and D -wave pairing interaction harmonics is considered. The general equations for energy gap and thermodynamic potential difference for arbitrary temperatures are given. The detailed calculations are performed for zero-temperature limit. The obtained results are illustrated and discussed. The value and structure of energy gap are presented. It is showed that the anisotropic gap can be realized only for g$\text{}_{0}$ < g$\text{}_{2}$.
Źródło:: Acta Physica Polonica A; 1998, 93, 3; 539-546
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Thermodynamic Properties of D-Wave Paired Superconductors in the Low Temperature and Subcritical Regions
Autorzy:: Kumala, W.
Gonczarek, R.
Mulak, M.
Powiązania:: https://bibliotekanauki.pl/articles/2013257.pdf
Data publikacji:: 2000-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.20.-z
Opis:: D-wave paired isotropic Fermi system in the limiting cases T → T$\text{}_{c}$ and T → 0 is considered. Values of the energy gap, the thermodynamic potential, and the specific heat as a function of temperature are given for admissible solutions and compared with values for S-wave paired system. It is shown that the linear term of low temperature specific heat vanishes likewise in case of S-wave pairing. The obtained results make prospects to define the geometry of the energy gap in virtue of the behavior of the specific heat in the limiting temperature cases for heavy-fermion superconductors.
Źródło:: Acta Physica Polonica A; 2000, 97, 4; 693-703
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Thermodynamic Properties of D-Wave Paired Superconductors
Autorzy:: Gonczarek, R.
Mulak, M.
Kumala, W.
Powiązania:: https://bibliotekanauki.pl/articles/1994689.pdf
Data publikacji:: 1999-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.20.-z
Opis:: The D-wave paired Fermi system is considered in the frame of generalized gap equation obtained in a BCS-like approach. It is shown that the thermodynamic functions of a system, as the thermodynamic potential, entropy and heat capacity differences between the normal and superconducting state are precisely defined functionals of the energy gap as a function of temperature. The derived formulas are identical as those obtained for S-wave paired Fermi system. It states that the developed formalism can be applied, in practice, to investigation of real superconductors in which a singlet state is realized. Some numerical results illustrating prospects and capabilities of the presented formalism are given for chosen structures of the order parameter.
Źródło:: Acta Physica Polonica A; 1999, 95, 2; 231-242
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Fast optoelectronic sensor of water concentration
Autorzy:: Nowak, J. L.
Magryta, P.
Stacewicz, T.
Kumala, W.
Malinowski, S. P.
Powiązania:: https://bibliotekanauki.pl/articles/174478.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: humidity
hygrometer
laser spectroscopy
absorption
Opis:: A prototype optoelectronic hygrometer, based on absorption of laser light tuned to a specific rovibronic absorption line of H2O at 1364.68961 nm is described. Target application is meteorology, in particular precise and fast measurements of small-scale humidity fluctuations in turbulent atmospheric flows. Tests of the prototype instrument performed in the atmospheric boundary layer have proven the advantage of this optoelectronic sensor over typical, commercially available UV hygrometers designed for similar applications.
Źródło:: Optica Applicata; 2016, 46, 4; 607-618
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

Artykuł

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