Results 51 to 60 of about 19,507 (290)

Origin of Magnetism in γ-FeSi₂/Si(111) Nanostructures

Nanomaterials, 2021
Magnetism has recently been observed in nominally nonmagnetic iron disilicide in the form of epitaxial γ-FeSi2 nanostructures on Si(111) substrate. To explore the origin of the magnetism in γ-FeSi2/Si(111) nanostructures, we performed a systematic first ...
Liwei D. Geng, Sahil Dhoka, Ilan Goldfarb, Ranjit Pati, Yongmei M. Jin   +4 more
doaj   +1 more source

Thermopower of the Correlated Narrow Gap Semiconductor FeSi and Comparison to RuSi

, 2012
Iron based narrow gap semiconductors such as FeSi, FeSb2, or FeGa3 have received a lot of attention because they exhibit a large thermopower, as well as striking similarities to heavy fermion Kondo insulators.
A Bentien, A Damascelli, A Herzog, A Kokalj, A Kutepov, A Mani, B Buschinger, BC Sales, C Fu, CM Varma, D Mandrus, D Marel, D Menzel, G Kotliar, GD Mahan, H Hohl, H Schweitzer, Haule K, Kotliar G (2009) Thermoelectrics near the Mott localization–delocalization transition. In: Properties and applications of thermoelectric materials, Proceedings of the NATO advanced research workshop on properties and application of thermoelectric materials, Hvar, Croatia, 21–26 Sept, J Kunes, J Kuneš, J Mravlje, JM Tomczak, JM Tomczak, JM Tomczak, K Haule, K Haule, K Haule, K-Y Yang, L Degiorgi, LF Mattheiss, M Arita, M Klein, O Delaire, P Blaha, P Sun, P Sun, P Werner, PM Raccah, R Wolfe, S Paschen, S Takagi, T Jarlborg, T Saso, V Jaccarino, V Shaposhnikov, V Vescoli, VI Anisimov, VS Oudovenko, VS Oudovenko, VV Mazurenko, Y Hadano, Y Imai, Y Takahashi, YN Zhao, Z Fisk, Z Schlesinger, ZP Yin   +56 more
core   +1 more source

Fe-Si Intermetallics/Al₂O₃ Composites Formed between Fe-20% Si and Fe-70.5% Si by SHS Metallurgy Method

Metals, 2022
Fe–Si intermetallics–Al2O3 composites were fabricated by thermite-assisted combustion synthesis. Combustion reactions were conducted with powder compacts composed of Fe2O3, Al, Fe, and Si. The starting stoichiometry of powder mixtures had an atomic Fe/Si
Chun-Liang Yeh, Ann Lu, Wei-Che Liang
doaj   +1 more source

Signatures of electronic correlations in iron silicide

, 2012
The intermetallic FeSi exhibits an unusual temperature dependence in its electronic and magnetic degrees of freedom, epitomized by the crossover from a low temperature non-magnetic semiconductor to a high temperature paramagnetic metal with a Curie-Weiss
Anisimov, G. Kotliar, J. M. Tomczak, K. Haule, Klein, Mahan, Schlesinger, Shirane, Snyder, Sun, Yin   +10 more
core   +1 more source

Effects of Inoculation on Structure Characteristics of High Silicon Ductile Cast Irons in Thin Wall Castings

Metals, 2020
Previous experiments pointed out that the deviation using a sphere as reference of graphite particles is noticeably increased by Si-alloying, with inoculation as a possible beneficial effect.
Iulian Riposan, Eduard Stefan, Stelian Stan, Nicoleta Roxana Pana, Mihai Chisamera   +4 more
doaj   +1 more source

The Nature of Ferromagnetism in a System of Self-Ordered α-FeSi₂ Nanorods on a Si(111)-4° Vicinal Surface: Experiment and Theory

Nanomaterials, 2022
In this study, the appearance of magnetic moments and ferromagnetism in nanostructures of non-magnetic materials based on silicon and transition metals (such as iron) was considered experimentally and theoretically.
Nikolay G. Galkin, Dmitrii L. Goroshko, Ivan A. Tkachenko, Aleksey Yu. Samardak, Konstantin N. Galkin, Evgenii Yu. Subbotin, Sergei A. Dotsenko, Dmitry B. Migas, Anton K. Gutakovskii   +8 more
doaj   +1 more source

Unconventional charge gap formation in FeSi

Physical Review Letters, 1993
We report the first infrared and optical measurements of the absolute conductivity of FeSi. Above 200 K the ac conductivity of FeSi resembles that of a dirty metal, while at low temperature most of the conductivity below 60 meV is depleted, consistent with an energy gap of that magnitude.
Schlesinger, Z, Fisk, Z, Zhang, Hai-Tao, Maple, MB, DiTusa, J, Aeppli, G   +5 more
openaire   +5 more sources

Resonant Charge Relaxation as a Likely Source of the Enhanced Thermopower in FeSi

, 2014
The enhanced thermopower of the correlated semiconductor FeSi is found to be robust against the sign of the relevant charge carriers. At $T$\,$\approx$\,70 K, the position of both the high-temperature shoulder of the thermopower peak and the nonmagnetic ...
Menzel, Dirk, Steglich, Frank, Sun, Peijie, Wei, Beipei   +3 more
core   +1 more source

Percepción psicosocial del adolescente en familia homoparental y heteroparental

CuidArte, 2012
Objetivo: Conocer la diferencia entre las experiencias psicosociales del adolescente en familia homoparental y heteroparental. Metodología: Fue un estudio cualitativo de tipo explorativo y corte transversal usando el método fenomenológico para la ...
Norma Ivette Beltrán Lugo, Luz Aurora Bribiesca Villaseñor, Thalía Monserrat Valencia López, Ricardo Tadeo Ortíz Garduño   +3 more
doaj   +1 more source

A Thermodynamic‐Kinetic Model for Basic Oxygen Furnace Tapping: Improved Prediction of Phosphorus and Steel‐Slag Evolution

steel research international, EarlyView.
This study develops a thermodynamic–kinetic model for basic oxygen furnace tapping and validates its accuracy under near‐equilibrium and far‐from‐equilibrium initial conditions. Comparison with a reference model demonstrates its broader applicability. The model further reveals the evolution of key steel and slag components, providing new transparency ...
Puhong Cheng, Christian Bernhard, Michael Bernhard, Daniel Kavić, Jianghua Qi   +4 more
wiley   +1 more source