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Electronic structures and magnetic properties of Fe3Si films epitaxial on Si(001)
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The electronic structures and magnetic properties of Fe3Si films epitaxial on Si(001) were systematically investigated by using the first-principle calculations on plane-wave pseudo-potential theory. The calculated results show that Fe3Si films epitaxial on Si(001) have the most stable equilibrium state at the lattice constant c = 5.63 Å. The negative heat of formation and cohesive energy of Fe3Si(001)//Si(001) imply that Fe3Si films epitaxial on Si(001) formed in this manner have high structural stability. The calculated spin polarized energy band structures and density of states indicate that Fe3Si films epitaxial on Si(001) have characteristic of metal, whose bonding modes are covalent bond and metallic bond. The band through Fermi level is mainly due to the Fe 3d states and the Si 3p states. Ferromagnetic properties of Fe3Si(001)//Si(001) are attributed to 3d states of the Fe atoms. The atomic magnetic moments of Fe[A,C] and Fe[B] are different from each other, likewise implying Fe3Si films epitaxial on Si(001) is ferromagnetic.
Title: Electronic structures and magnetic properties of Fe3Si films epitaxial on Si(001)
Description:
The electronic structures and magnetic properties of Fe3Si films epitaxial on Si(001) were systematically investigated by using the first-principle calculations on plane-wave pseudo-potential theory.
The calculated results show that Fe3Si films epitaxial on Si(001) have the most stable equilibrium state at the lattice constant c = 5.
63 Å.
The negative heat of formation and cohesive energy of Fe3Si(001)//Si(001) imply that Fe3Si films epitaxial on Si(001) formed in this manner have high structural stability.
The calculated spin polarized energy band structures and density of states indicate that Fe3Si films epitaxial on Si(001) have characteristic of metal, whose bonding modes are covalent bond and metallic bond.
The band through Fermi level is mainly due to the Fe 3d states and the Si 3p states.
Ferromagnetic properties of Fe3Si(001)//Si(001) are attributed to 3d states of the Fe atoms.
The atomic magnetic moments of Fe[A,C] and Fe[B] are different from each other, likewise implying Fe3Si films epitaxial on Si(001) is ferromagnetic.
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