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61 papers · 2 filters
Upper bound for the s-d exchange integral in n-(Ga,Mn)N:Si from magnetotransport studies
R. Adhikari, W. Stefanowicz, B. Faina +3
A series of recent magnetooptical studies pointed to contradicting values of the s-d exchange energy N0α in Mn-doped GaAs and GaN as well as in Fe-doped GaN. Here, a strong sensiti…
Molecular beam epitaxy growth and scanning tunneling microscopy study of TiSe ultrathin films
Jun-Ping Peng, Jia-Qi Guan, Hui-Min Zhang +5
Molecular beam epitaxy is used to grow TiSe2 ultrathin films on graphitized SiC(0001) substrate. TiSe2films proceed via a nearly layer-by-layer growth mode and exhibit two dominant…
Spinodal nanodecomposition in magnetically doped semiconductors
T. Dietl, K. Sato, T. Fukushima +7
This review presents the recent progress in computational materials design, experimental realization, and control methods of spinodal nanodecomposition under three- and two-dimensi…
Crystal and local atomic structure of Co-doped MgFeBO_4 warwickites
N. V. Kazak, M. S. Platunov, Yu. V. Knyazev +10
Single crystalline MgFeBO_4, Mg_0.5Co_0.5FeBO_4 and CoFeBO_4 have been grown by the flux method. The samples have been characterized by X-ray spectral analysis, X-ray diffraction a…
Incorporation of Mn in AlGaN probed by x-ray absorption and emission spectroscopy, high-resolution microscopy, x-ray diffraction and first-principles calculations
Mauro Rovezzi, Wolfgang Schlögelhofer, Thibaut Devillers +5
Synchrotron radiation x-ray absorption and emission spectroscopy techniques, complemented by high-resolution transmission electron microscopy methods and density functional theory…
Valley-polarized quantum anomalous Hall phases and tunable topological phase transitions in half-hydrogenated Bi honeycomb monolayers
Cheng-Cheng Liu, Jin-Jian Zhou, Yugui Yao
Based on first-principles calculations, we find novel valley-polarized quantum anomalous Hall (VP-QAH) phases with a large gap-0.19 eV at an appropriate buckled angle and tunable t…