Autor: Wilamowski, Z. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Spin Resonance Absorption in a 2D Electron Gas
Autorzy:: Ungier, W.
Jantsch, W.
Wilamowski, Z.
Powiązania:: https://bibliotekanauki.pl/articles/2047694.pdf
Data publikacji:: 2007-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 85.75.-d
73.63.Hs
75.75.+a
76.30.-v
Opis:: We analyze the power absorption at electron spin resonance excited by the Bychkov-Rashba spin-orbit field in a 2D electron gas. We show that, as long as the absorbed power is dissipated by the usual spin lattice relaxation mechanisms, the resonance line shape is expected to be of pure absorption type, i.e., it can be described by the imaginary part of the dynamic magnetic susceptibility. Therefore, the Dysonian line shape observed in ESR of 2D electron gas cannot result from this type of the resonance signal.
Źródło:: Acta Physica Polonica A; 2007, 112, 2; 345-350
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Mechanisms of Nonuniform Line Broadening
Autorzy:: Wilamowski, Ż.
Przybylińska, H.
Jantsch, W.
Powiązania:: https://bibliotekanauki.pl/articles/1931943.pdf
Data publikacji:: 1995-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 76.20.+q
76.30.-v
Opis:: When the spin relaxation time of paramagnetic impurities at different magnetic sites differs by orders of magnitude then instead of resonance line broadening, rather a decay of the line amplitude is expected. In particular, the sp-d coupling of magnetic impurities to shallow impurities leads to a nonuniform distribution of the longitudinal relaxation rates of local spins.
Źródło:: Acta Physica Polonica A; 1995, 87, 1; 181-184
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Limitations in the Tunability of the Spin Resonance of 2D Electrons in Si by an Electric Current
Autorzy:: Wilamowski, Z.
Malissa, H.
Glazov, M.
Jantsch, W.
Powiązania:: https://bibliotekanauki.pl/articles/2047703.pdf
Data publikacji:: 2007-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 85.75.-d
73.63.Hs
75.75.+a
76.30.-v
Opis:: We analyse the recently observed effect of an in-plane electric current through a Si quantum well on the conduction electron spin resonance. We find that the ratio of resonance shift and current density is independent of temperature and dissipation processes, but the channel current is reduced due to a parallel electric channel in heavily modulation doped samples. The inhomogeneous current distribution results in some broadening of the ESR line width. In high mobility Si/SiGe layers the current induced increase in the electron temperature is considerably larger than the increase in the lattice temperature. The signal amplitude scales with the square of electron mobility.
Źródło:: Acta Physica Polonica A; 2007, 112, 2; 375-379
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Electric Dipole and Current Induced Spin Resonances of Shallow Donor in ZnO
Autorzy:: Michaluk, E.
Błoniarz, J.
Pabich, M.
Wilamowski, Z.
Mycielski, A.
Powiązania:: https://bibliotekanauki.pl/articles/2046940.pdf
Data publikacji:: 2006-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.55.Gs
76.30.-v
71.70.Ej
Opis:: In this paper we present our observation of electric dipole spin resonance and current induced spin resonance in ZnO bulk crystals, both effects result from spin-orbit coupling. Electric dipole spin resonance originates from admixture of spin state due to spin-orbit interaction which leads to probability of spin-flip caused by electric component of microwave field. In current induced spin resonance phenomenon the electric component of microwave field induces electron motion leading to mean ac spin-orbit field that acts on electron spin. Spin-orbit interaction can be described in terms of the Rashba field, an effective magnetic field that induce spin resonance. In contrast to magnetic and electric dipole spin resonances the current induced resonance is characterized by dispersive-like line shape.
Źródło:: Acta Physica Polonica A; 2006, 110, 2; 263-270
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja