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155 papers · 1 filter
Interplay between carrier localization and magnetism in diluted magnetic and ferromagnetic semiconductors
Tomasz Dietl
The presence of localized spins exerts a strong influence on quantum localization in doped semiconductors. At the same time carrier-mediated interactions between the localized spin…
Extraction of the species dependent dipole moment from high-order harmonic spectra in rare gas atoms
Anh-Thu Le, Toru Morishita, C. D. Lin
Based on high-order harmonic generation (HHG) spectra obtained from solving the time-dependent Schrodinger equation for atoms, we established quantitatively that the HHG yield can…
Spin-transfer physics and the model of ferromagnetism in (Ga,Mn)As
Hideo Ohno, Tomasz Dietl
We describe recent progress and open questions in the physics of current-induced domain-wall displacement and creep in (Ga,Mn)As. Furthermore, the reasons are recalled why, despite…
Madelung Energy of the Valence Skipping Compound BaBiO
Izumi Hase, Takashi Yanagisawa
Several elements show valence skip fluctuation, for instance, Tl forms the compounds in valence states +1 and +3, and Bi forms in +3 and +5 states. This kind of fluctuation gives r…
Neutron scattering study on spin correlations and fluctuations in the transition-metal-based magnetic quasicrystal Zn-Fe-Sc
Taku J Sato, Shiro Kashimoto, Chihiro Masuda +5
Spin correlations and fluctuations in the 3d-transition-metal-based icosahedral quasicrystal Zn-Fe-Sc have been investigated by neutron scattering using polycrystalline samples. Ma…
0.7-anomaly and magnetotransport of disordered quantum wires
M. Czapkiewicz, P. Zagrajek, J. Wrobel +6
The unexpected "0.7" plateau of conductance quantisation is usually observed for ballistic one-dimensional devices. In this work we study a quasi-ballistic quantum wire, for which…