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31.
Nonas B Cabria I Zeller R Dederichs PH Huhne T Ebert H 《Physical review letters》2001,86(10):2146-2149
We present ab initio calculations for orbital moments and anisotropy energies of 3d and 5d adatoms on the Ag(001) surface, based on density functional theory, including Brooks' orbital polarization (OP) term, and applying a fully relativistic Korringa-Kohn-Rostoker-Green's function method. In general, we find unusually large orbital moments and anisotropy energies, e.g., in the 3d series, 2.57 mu(B) and +74 meV for Co, and, in the 5d series, 1.78 mu(B) and +42 meV for Os. These magnetic properties are determined mainly by the OP and even exist without spin-orbit coupling. 相似文献
32.
Wilhelm F Poulopoulos P Ceballos G Wende H Baberschke K Srivastava P Benea D Ebert H Angelakeris M Flevaris NK Niarchos D Rogalev A Brookes NB 《Physical review letters》2000,85(2):413-416
The magnetic moments in Ni/Pt multilayers are thoroughly studied by combining experimental and ab initio theoretical techniques. SQUID magnetometry probes the samples' magnetizations. X-ray magnetic circular dichroism separates the contribution of Ni and Pt and provides a layer-resolved magnetic moment profile for the whole system. The results are compared to band-structure calculations. Induced Pt magnetic moments localized mostly at the interface are revealed. No magnetically "dead" Ni layers are found. The magnetization per Ni volume is slightly enhanced compared to bulk NiPt alloys. 相似文献
33.
E. G. Maksimov S. V. Ebert M. V. Magnitskaya A. E. Karakozov 《Journal of Experimental and Theoretical Physics》2007,105(3):642-651
We report ab initio linear-response calculations of the phonon spectra and the electron-phonon interaction for several transition
metal carbides and nitrides in a NaCl-type structure. For NbC, the kinetic, optical, and superconducting properties are calculated
in detail at various pressures and the normal-pressure results are found to agree well with the experiment. Factors accounting
for the relatively low critical temperatures T
c in transition metal compounds with light elements are considered and the possible ways of increasing T
c are discussed.
The text was submitted by the author in English. 相似文献
34.
P. Schmid K. Uran F. Macherey M. Ebert H.-J. Ullrich D. Sommer F. Friedel 《Analytical and bioanalytical chemistry》2009,393(8):1863-1870
The formation of Fe–Zn intermetallic compounds, as relevant in the commercial product galvannealed steel sheet, was investigated
by scanning electron microscopy and different methods of X-ray diffraction. A scanning electron microscope with high resolution
was applied to investigate the layers of the galvannealed coating and its topography. Grazing incidence X-ray diffraction
(GID) was preferred over conventional Bragg–Brentano geometry for analysing thin crystalline layers because of its lower incidence
angle α and its lower depth of information. Furthermore, in situ experiments at an environmental scanning electron microscope (ESEM)
with an internal heating plate and at an X-ray diffractometer equipped with a high-temperature chamber were carried out. Thus,
it was possible to investigate the phase evolution during heat treatment by X-ray diffraction and to display the growth of
the ζ crystals in the ESEM. 相似文献
35.
A. Janke H. Hiller R. Dworzak L. Ebert C. Mayr E. Kroupa G. Koller F. v. Wessely H. Lieb J. Schintlmeister M. Nießner G. Lock G. Ortner 《Mikrochimica acta》1942,30(1-2):181-192
Ohne Zusammenfassung 相似文献
36.
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39.
W. Franz S. Steeb H. Ebert H. Winter J. Voitländer 《Zeitschrift für Physik B Condensed Matter》1987,69(2-3):257-261
Soft X-ray emission experiments on Cu
x
Rh1–x
alloys for the compositionsx=0.0, 0.05, 0.10, 0.80 and 1.0, have been performed. In this paper we present the spectra of Cu-and Rh-L
III
core level-conduction band transitions. Using the data of recent self-consistent KKR-CPA electronic structure calculations we evaluate the corresponding SXS-cross sections and compare these theoretical results to our measurements. 相似文献
40.