Temat: 67.50.-b - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The Influence of Surface Roughness on Equilibrium States of Superfluid $\text{}^{3}$He in Confined Geometry
Autorzy:: Gonczarek, R.
Krzyżanowski, I. H.
Powiązania:: https://bibliotekanauki.pl/articles/1891638.pdf
Data publikacji:: 1991-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 67.50.-b
67.50.Fi
Opis:: The superfluid $\text{}^{3}$He is considered in confined geometry for arbitrary thickness when surface roughness is taken into account. The equilibrium states, the critical size when the two-dimensional state is realized exclusively, and the critical thickness below which superfluidity is destroyed are defined, found and discussed with reference to the essential parameters of a system. Some particular cases are examined analytically. The examples of exact numerical solutions are presented.
Źródło:: Acta Physica Polonica A; 1991, 80, 4; 553-569
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: The Critical Behaviour of Pyroelectric-Type Superconductors
Autorzy:: Krzyżanowski, I. H.
Powiązania:: https://bibliotekanauki.pl/articles/1887981.pdf
Data publikacji:: 1991-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 67.50.-b
74.70.-b
Opis:: The quasiclassical, Eilenberger-type equations are applied to description of rotating P-wave pyroelectric-type superconductor in the presence of magnetic field H and superflow υ. In analogy to type-II superconductors the possibility of vortex solution is discussed. We determine the symmetry of eigensolutions and the upper critical velocity Ω$\text{}_{c2}$. We discuss the paramagnetic critical behaviour of the system depending on the strength of spin-orbit interaction.
Źródło:: Acta Physica Polonica A; 1991, 80, 1; 81-98
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Thermodynamic and Electronic Properties of $OsB_2$ from First-Principles Calculations
Autorzy:: Cheng, Y.
Yang, J.
Wang, Y.
Ji, G.
Chen, X.
Powiązania:: https://bibliotekanauki.pl/articles/1365243.pdf
Data publikacji:: 2014-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.15.Mb
61.50.Ks
67.25.de
71.20.-b
Opis:: The pressure induced phase transitions of $OsB_2$ from the orthorhombic structure (Orth) to the hexagonal structure (Hex) is investigated by using ab initio plane-wave pseudopotential density functional theory, together with quasi-harmonic Debye model. We find that the pressure-induced phase transition occurs at 2.8 GPa and 12.5 GPa by local density approximation and general gradient approximation, respectively. It is predicted that $OsB_2$ has no phase transition temperature from the Orth structure to the Hex structure. Moreover, the dependences of the relative volume V/$V_0$ on the pressure, thermal expansion coefficient α on the pressure and temperature are also successfully obtained. The electronic properties including energy band, total and partial density of states and electron density difference for two structures are also analyzed. The Mulliken charges and Bond populations for both Orth and Hex structures are also obtained.
Źródło:: Acta Physica Polonica A; 2014, 125, 5; 1186-1190
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Fluorescence Microscopy of Corrole-Single Silver Nanowire Hybrid Nanostructures
Autorzy:: Czechowski, N.
Olejnik, M.
Nowak-Król, A.
Piątkowski, D.
Heiss, W.
Gryko, D.
Mackowski, S.
Powiązania:: https://bibliotekanauki.pl/articles/1419537.pdf
Data publikacji:: 2012-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 33.50.-j
78.67.Uh
73.20.Mf
81.07.Pr
81.07.-b
Opis:: We report on confocal microscopy imaging of hybrid nanostructures composed of silver nanowires and corroles. Both nanomaterials were separated by a 30 nm thick $SiO_2$ spacer in order to inhibit fluorescence quenching. The results show that for such a hybrid nanostructure the average enhancement of the fluorescence intensity reached 2.5. Importantly, the coupling to plasmon excitations in metallic nanowires leaves no effect on the fluorescence spectrum of the organic molecules.
Źródło:: Acta Physica Polonica A; 2012, 122, 2; 333-336
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Measuring the Energy Landscape in Single Semiconductor Nanowires
Autorzy:: Smith, L.
Jackson, H.
Yarrison-Rice, J.
Jagadish, Ch.
Powiązania:: https://bibliotekanauki.pl/articles/1419516.pdf
Data publikacji:: 2012-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.22.-f
73.43.Fj
73.50.Gr
73.50.Pz
73.63.-b
78.30.Fs
78.35.+c
78.55.-m
78.67.-n
Opis:: With the ability to design and control the physical structure of nanostructures to tune their electronic properties, it is increasingly important to measure the electronic structure of single nanostructures. Here we describe a number of experimental techniques for measuring the electronic structure of single semiconductor nanowires. The advantages, disadvantages and limitations of these methods will be described.
Źródło:: Acta Physica Polonica A; 2012, 122, 2; 316-320
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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