The Experts below are selected from a list of 123 Experts worldwide ranked by ideXlab platform
Heyan Liu - One of the best experts on this subject based on the ideXlab platform.
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Half-Metallic ferromagnetism in zinc-blende CrBi and the stability of the half-Metallicity of zinc-blende CrM (M = P, As, Sb, Bi)
Journal of Physics Condensed Matter, 2003Co-Authors: Ming Zhang, Yuting Cui, Liqin Yan, Zhuhong Liu, Haining Hu, Guodong Liu, Guangheng Wu, Jianli Wang, Xixiang Zhang, Heyan LiuAbstract:First-principles calculations within density-functional theory are used to investigate zinc-blende-structured CrBi. Our calculation predicts ZB-type CrBi to be a true half-Metallic ferromagnet with a magnetic moment of 3 μBper formula. Its half-Metallicity can be maintained over a relatively wide range of lattice constant (from -8 to 8%). The trends with varying lattice constant for the ZB-type half-Metallic System CrM (M = P, As, Sb, Bi) are also studied.
Antoine Khater - One of the best experts on this subject based on the ideXlab platform.
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THERMODYNAMIC PROPERTIES OF THE Metallic System Au(111)-(3×3)R30∘-Pd
Surface Review and Letters, 2016Co-Authors: R. Chadli, S. Kheffache, Antoine KhaterAbstract:This work constitutes an analysis of the thermodynamic properties in the ordered Metallic surface alloy System Au(111)-(3×3)R30∘-Pd. The equilibrium structural characteristics as well as the thermodynamic functions are examined by the matching method, associated with real space Green’s function formalism, evaluated in the harmonic approximation. Our numerical results, for this Metallic System of surface alloy, show in particular a significant dependence between the thermodynamic properties and the coordination number and the values of the force constants.
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THERMODYNAMIC PROPERTIES OF THE Metallic System Au(111)-(3×3)R30∘-Pd
Surface Review and Letters, 2016Co-Authors: R. Chadli, S. Kheffache, Antoine KhaterAbstract:This work constitutes an analysis of the thermodynamic properties in the ordered Metallic surface alloy System Au(111)-([Formula: see text])[Formula: see text]-Pd. The equilibrium structural characteristics as well as the thermodynamic functions are examined by the matching method, associated with real space Green’s function formalism, evaluated in the harmonic approximation. Our numerical results, for this Metallic System of surface alloy, show in particular a significant dependence between the thermodynamic properties and the coordination number and the values of the force constants.
Ming Zhang - One of the best experts on this subject based on the ideXlab platform.
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Half-Metallic ferromagnetism in zinc-blende CrBi and the stability of the half-Metallicity of zinc-blende CrM (M = P, As, Sb, Bi)
Journal of Physics Condensed Matter, 2003Co-Authors: Ming Zhang, Yuting Cui, Liqin Yan, Zhuhong Liu, Haining Hu, Guodong Liu, Guangheng Wu, Jianli Wang, Xixiang Zhang, Heyan LiuAbstract:First-principles calculations within density-functional theory are used to investigate zinc-blende-structured CrBi. Our calculation predicts ZB-type CrBi to be a true half-Metallic ferromagnet with a magnetic moment of 3 μBper formula. Its half-Metallicity can be maintained over a relatively wide range of lattice constant (from -8 to 8%). The trends with varying lattice constant for the ZB-type half-Metallic System CrM (M = P, As, Sb, Bi) are also studied.
R. Chadli - One of the best experts on this subject based on the ideXlab platform.
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THERMODYNAMIC PROPERTIES OF THE Metallic System Au(111)-(3×3)R30∘-Pd
Surface Review and Letters, 2016Co-Authors: R. Chadli, S. Kheffache, Antoine KhaterAbstract:This work constitutes an analysis of the thermodynamic properties in the ordered Metallic surface alloy System Au(111)-(3×3)R30∘-Pd. The equilibrium structural characteristics as well as the thermodynamic functions are examined by the matching method, associated with real space Green’s function formalism, evaluated in the harmonic approximation. Our numerical results, for this Metallic System of surface alloy, show in particular a significant dependence between the thermodynamic properties and the coordination number and the values of the force constants.
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THERMODYNAMIC PROPERTIES OF THE Metallic System Au(111)-(3×3)R30∘-Pd
Surface Review and Letters, 2016Co-Authors: R. Chadli, S. Kheffache, Antoine KhaterAbstract:This work constitutes an analysis of the thermodynamic properties in the ordered Metallic surface alloy System Au(111)-([Formula: see text])[Formula: see text]-Pd. The equilibrium structural characteristics as well as the thermodynamic functions are examined by the matching method, associated with real space Green’s function formalism, evaluated in the harmonic approximation. Our numerical results, for this Metallic System of surface alloy, show in particular a significant dependence between the thermodynamic properties and the coordination number and the values of the force constants.
T. Venkatesan - One of the best experts on this subject based on the ideXlab platform.
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Direct evidence for a half-Metallic ferromagnet
Nature, 1998Co-Authors: J.h Park, E. Vescovo, C. Kwon, Hae Jong Kim, Ramamoorthy Ramesh, T. VenkatesanAbstract:Half-Metallic materials are characterized by the coexistence of Metallic behaviour for one electron spin and insulating behaviour for the other. Thus, the electronic density of states is completely spin polarized at the Fermi level, and the conductivity is dominated by these Metallic single-spin charge carriers. This exotic physical property could have a significant effect on technological applications related to magnetism and spin electronics. Some ferromagnetic Systems, such as Heusler compounds1 and chromium dioxide2, have been predicted theoretically to be half-Metallic. However, a half-Metallic System has not been demonstrated directly and the predictions are still in doubt3,4. Here we report spin-resolved photoemission measurements of a ferromagnetic manganese perovskite, La0.7Sr0.3MnO3, which directly manifest the half-Metallic nature well below the Curie temperature. For the majority spin, the photoemission spectrum clearly shows a Metallic Fermi cut-off, whereas for the minori