Results 251 to 260 of about 19,507 (290)

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
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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
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FeSi melting curve up to 70 GPa

Earth and Planetary Science Letters, 2008
Abstract The melting curve of iron monosilicide, FeSi, has been determined in a laser-heated diamond anvil cell from 6 up to 70 GPa by direct visual observation of the continuous laser-speckle motion in the liquid state. At 12 GPa and 1700 K, a discontinuous change in the slope of the melting curve indicates the first-order phase transition between ...
Santamaria-Perez, D., Boehler, R.
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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

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
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Spin-fluctuation theory of FeSi

Journal of Physics: Condensed Matter, 1997
The temperature dependence of the magnetic susceptibility of FeSi is calculated over a wide temperature range on the basis of spin-fluctuation theory applied to a model of an exchange-enhanced semiconductor. We can reproduce the low-temperature activation-type behaviour of the susceptibility as well as the Curie - Weiss behaviour observed at high ...
openaire   +1 more source

Influence of soft magnetic properties of FeSiCr amorphous powder cores by the addition of FeSi powders

Journal of Materials Science: Materials in Electronics, 2023
Hao Li, Yujie Yang, Congliang Chen, D. Chen, Yingming Zhang, Yuting Meng, Zhengyu Zhang   +6 more
semanticscholar   +1 more source

Dependence of Core Loss on Magnetization State Under DC Bias Field for Soft Magnetic Composites Based on FeSiAl/FeSi Powders

Journal of Superconductivity and Novel Magnetism, 2023
Chaoqiang Mei, Pengpeng Xu, Bowei Zhang, Xuu Zhu, Jingjing Li, Feng Hu, H. Su, Wei Liu, Zhongqiu Zou, Jinzhi Wang   +9 more
semanticscholar   +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
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Thermoelectric properties of $��$-FeSi$_{\text2}$

2013
We investigate the thermoelectric properties of $ $-FeSi$_{\text2}$ using first principles electronic structure and Boltzmann transport calculations. We report a high thermopower for both \textit{p}- and \textit{n}-type $ $-FeSi$_{\text2}$ over a wide range of carrier concentration and in addition find the performance for \textit{n}-type to be higher
Pandey, Tribhuwan, Singh, David J., Parker, David, Singh, Abhishek K.   +3 more
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