Autor: (west). - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: 2D Angular Correlation of Annihilation Radiation: Current Trends and Future Possibilities
Autorzy:: West, R. N.
Powiązania:: https://bibliotekanauki.pl/articles/1933550.pdf
Data publikacji:: 1995-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.28.+d
71.25.Ηc
78.70.Bj
Opis:: Recent improvements in two-dimensional angular correlation measurement and analysis techniques have greatly increased the power of the method to image the Fermi surfaces of electronically complex systems. That, and the further and dramatic improvement that must result when the present radioisotope positron sources are replaced by intense monoenergetic positron beams are discussed and illustrated.
Źródło:: Acta Physica Polonica A; 1995, 88, 1; 249-256
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Reconstruction of Densities from Compton Profiles with Applying Jacobi Polynomials
Autorzy:: Kontrym-Sznajd, G.
Samsel, M.
West, R. N.
Powiązania:: https://bibliotekanauki.pl/articles/2008105.pdf
Data publikacji:: 1999-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.20.-b
78.70.Bj
Opis:: The advent of synchrotron sources has led to an increasing availability of high resolution Compton profiles J(p$\text{}_{z}$) and a consequent renewed interest in the reconstruction of the corresponding full momentum densities ρ(p). We present results of applying a new method in which the radial parts of ρ(p) and the measured profiles are expressed in terms of the Jacobi polynomials. The technique is demonstrated using model projections that correspond to Mg and Gd spectra. Reconstructed densities, being in very good agreement with model ones, are a very good performance of our new reconstruction algorithm.
Źródło:: Acta Physica Polonica A; 1999, 95, 4; 591-595
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Skyrmions and the ν=1 Quantum Hall Ferromagnet
Autorzy:: Manfra, M. J.
Goldberg, B. B.
Pfeiffer, L.
West, K.
Powiązania:: https://bibliotekanauki.pl/articles/1967963.pdf
Data publikacji:: 1997-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.40.Hm
78.66.-w
73.20.Mf
71.70.Gm
73.20.Dx
Opis:: Recent experimental and theoretical investigations have resulted in a shift in our understanding of the ν=1 quantum Hall state. There now exists a wealth of evidence that the excitation gap and the resulting quasiparticle spectrum at ν=1 are due predominately to the ferromagnetic many-body exchange interaction. A great variety of experimentally observed correlations at ν= 1 cannot be incorporated into a perturbative expansion around the single-particle model, a scheme long thought to describe the integral quantum Hall effect at filling factor 1. Theorists now refer to the ν=1 state as the quantum Hall ferromagnet. In this paper we review recent theoretical and experimental progress and detail our own optical investigations of the ν= 1 quantum Hall regime. The technique of magneto-absorption spectroscopy has proven to be powerful a probe of the occupancy of the lowest Landau level in the regime of 0.7<ν<1.3 about the spin gap. Additionally, we have performed simultaneous measurements of the absorption, photoluminescence and photoluminescence excitation spectra of the ν=1 state in order to elucidate the role of excitonic and relaxation effects in optical spectroscopy in the quantum Hall regime.
Źródło:: Acta Physica Polonica A; 1997, 92, 4; 621-632
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "(west)." wg kryterium: Autor

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język