Results 201 to 210 of about 7,843 (256)

Charge-neutral epitaxial graphene on 6H–SiC(0001) via FeSi intercalation

, 2020
Graphene grown epitaxially on SiC(0001) substrates always exhibits n-type doping due to the coupling interaction between the substrate and graphene. The electronic properties of epitaxial graphene are thus impaired relative to those of free-standing ...
Xingyun Luo, G. Liang, Xiucai Sun, Yanlu Li, F. Yu, Lei Wei, Xiu-feng Cheng, Li Sun, Xian Zhao   +8 more
semanticscholar   +1 more source

Model for a strongly correlated insulator: FeSi

Physical Review B, 1995
Prompted by suggestions that FeSi may be a strongly correlated insulator, somewhat analogous to the Kondo insulators, we study the properties of a two-band Hubbard model Hamiltonian in the infinite-dimensional limit. By a calculation of the one-particle self-energy using self-consistent second-order perturbation theory we are able to calculate the ...
, Fu, , Doniach
openaire   +2 more sources

Electron spectroscopy study of FeSi and CoSi

Physical Review B, 1987
Electronic structures of the transition-metal monosilicides FeSi and CoSi have been studied by x-ray photoelectron spectroscopy (XPS) and bremsstrahlung isochromat spectroscopy (BIS) as a function of temperature. The XPS valence-band spectra and the BIS conduction-band spectra at low temperature (\ensuremath{\sim}120 K) are in qualitative agreement ...
, Oh, , Allen, , Lawrence
openaire   +2 more sources

Observation of quantum fluctuations in FeSi

Journal of Magnetism and Magnetic Materials, 1983
Abstract Polarised neutrons and polarisation analysis have been used to determine the diffuse magnetic scattering from FeSi as a function of temperature. The variation of the scattering as a function of Q is indicative of spatial correlations of magnetic moment extending over several interatomic distances.
K.R.A. Ziebeck, H. Capellmann, P.J. Brown, P.J. Webster   +3 more
openaire   +1 more source

Elastic and vibrational properties of pseudomorphic FeSi films

Physical Review B, 1994
We analyze the structural, vibrational, and elastic properties of epitaxial novel FeSi films on Si(111) in the CsCl structure by Rutherford-backscattering spectrometry, x-ray-diffraction, infrared transmittance/ reflectance, and Brillouin-light-scattering measurements.
Vonkanel, H, Mendik, M, Mader, K, Onda, N, Goncalvesconto, S, Schwarz, C, Malegori, G, MIGLIO, LEONIDA, Marabelli, F.   +8 more
openaire   +2 more sources

Neutron scattering from FeSi

Solid State Communications, 1981
Abstract The inelastic neutron scattering from the unusual paramagnet FeSi has been measured at temperatures of up to 700 K in order to investigate the possible existence of a local magnetic moment at high temperatures. The estimated intensities of the central peaks around h ω = 0 and the nearly constant backgrounds ( h ω ≲ 16 meV ...
M. Kohgi, Y. Ishikawa
openaire   +1 more source

Magnetic properties regulation and loss contribution analysis of FeSi soft magnetic composites doped by carbonyl iron powders

Journal of Magnetism and Magnetic Materials, 2023
Ziru Zheng, Shuoguo Li, K. Peng
semanticscholar   +1 more source

Static compression of $epsilon$-FeSi

Journal of the Korean Physical Society, 2010
X-ray diffraction patterns of -FeSi have been measured at pressures up to ∼53 GPa with good signal-to-noise ratio and high resolution by using synchrotron radiation. In order to refine the crystal structure, a Rietveld analysis has been performed. The structure of -FeSi is cubic with space group P213 and a = 4.4781 ± 0.0026 A.
Young Ho Ko, Kwang Joo Kim, Chung Kyu Han, Cedomir Petrovic, Rongwei Hu, Hyun Hee Lee, Yongjae Lee   +6 more
openaire   +1 more source

Bond dissociation energies of FeSi, RuSi, OsSi, CoSi, RhSi, IrSi, NiSi, and PtSi.

Journal of Chemical Physics, 2018
Resonant two-photon ionization spectroscopy has been used to investigate the spectra of the diatomic late transition metal silicides, MSi, M = Fe, Ru, Os, Co, Rh, Ir, Ni, and Pt, in the vicinity of the bond dissociation energy.
Andrew Sevy, Erick Tieu, M. Morse
semanticscholar   +1 more source

Surface segregation in FeSi alloys

Surface Science, 2006
The surface segregation of a Fe 94 Si 6 and Fe 76 Si 24 alloys was studied using high resolution photoemission spectroscopy with synchrotron radiation at 150-166 eV photon beam energy. During Ar + ion sputtering and following heat treatment, a SiO 2 layer and segregation of Si atoms in three clearly resolved phases occurred. This indicates formation
M. Vondráček, V. Dudr, N. Tsud, P. Lejček, V. Cháb, K.C. Prince, V. Matolín, O. Schneeweiss   +7 more
openaire   +1 more source