Diagrama de fases magnéticas de aleaciones binarias desordenadas

E. López-Chávez; F. De Landa Castillo-Alvarado

Diagrama de fases magnéticas de aleaciones binarias desordenadas

E. López-Chávez, F. De Landa Castillo-Alvarado

Escuela Superior de Física y Matemáticas (ESFM)

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

3 Citas (Scopus)

Resumen

The ground-state solutions of the Hubbard model of a metallic disordered binary alloy A_xB_1-x are studied. The electronic structure is solved within the Cluster Bethe-Lettice method, and the size of the local moments on each site are determinated in a self-consistent manner. We find that, for various values of the Coulomb Integral (U) and as a function of the number of electrons (n), the ground state of the system presents two magnetic phases: Pauli paramagnet for small values of U and antiferrimagnet states when U is stronger.

Idioma original	Español
Páginas (desde-hasta)	454-458
Número de páginas	5
Publicación	Revista Mexicana de Fisica
Volumen	45
N.º	5
Estado	Publicada - oct. 1999

Palabras clave

Disordered binary alloys
Hubbard Hamiltonian
Magnetic phase transition

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abstract = "The ground-state solutions of the Hubbard model of a metallic disordered binary alloy AxB1-x are studied. The electronic structure is solved within the Cluster Bethe-Lettice method, and the size of the local moments on each site are determinated in a self-consistent manner. We find that, for various values of the Coulomb Integral (U) and as a function of the number of electrons (n), the ground state of the system presents two magnetic phases: Pauli paramagnet for small values of U and antiferrimagnet states when U is stronger.",

keywords = "Disordered binary alloys, Hubbard Hamiltonian, Magnetic phase transition",

author = "E. L{\'o}pez-Ch{\'a}vez and Castillo-Alvarado, {F. De Landa}",

year = "1999",

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AU - López-Chávez, E.

AU - Castillo-Alvarado, F. De Landa

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Y1 - 1999/10

N2 - The ground-state solutions of the Hubbard model of a metallic disordered binary alloy AxB1-x are studied. The electronic structure is solved within the Cluster Bethe-Lettice method, and the size of the local moments on each site are determinated in a self-consistent manner. We find that, for various values of the Coulomb Integral (U) and as a function of the number of electrons (n), the ground state of the system presents two magnetic phases: Pauli paramagnet for small values of U and antiferrimagnet states when U is stronger.

AB - The ground-state solutions of the Hubbard model of a metallic disordered binary alloy AxB1-x are studied. The electronic structure is solved within the Cluster Bethe-Lettice method, and the size of the local moments on each site are determinated in a self-consistent manner. We find that, for various values of the Coulomb Integral (U) and as a function of the number of electrons (n), the ground state of the system presents two magnetic phases: Pauli paramagnet for small values of U and antiferrimagnet states when U is stronger.

KW - Disordered binary alloys

KW - Hubbard Hamiltonian

KW - Magnetic phase transition

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ER -

Diagrama de fases magnéticas de aleaciones binarias desordenadas

Resumen

Palabras clave

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Huella

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