--- title: "Disordered D-vector model: mean field renormalization group treatment • CBPF Index" description: "CBPF INDEX es el sistema de seguimiento de la producción científica y tecnológica del CBPF. En él se puede obtener la lista de publicaciones de artículos, libros, informes técnicos, etc. de toda la comunidad del CBPF." canonical_url: "https://index.cbpf.br/es/publicacoes/6ad2a767639f62b11adbb7ac" locale: es meta: "og:description": "CBPF INDEX es el sistema de seguimiento de la producción científica y tecnológica del CBPF. En él se puede obtener la lista de publicaciones de artículos, libros, informes técnicos, etc. de toda la comunidad del CBPF." "og:image": "https://index.cbpf.br/_og/d/c_Item%2Ctitulo_~RGlzb3JkZXJlZCBELXZlY3RvciBtb2RlbDogbWVhbiBmaWVsZCByZW5vcm1hbGl6YXRpb24gZ3JvdXAgdHJlYXRtZW50%2Ctipo_~Tm90YSBkZSBGw61zaWNh%2Ccor_~I2E4MmMwMA%2Cautores_~TS5MLiBMeXJhOyBTLiBDb3V0aW5obw%2Cdetalhe_1987%2Csecao_Publicaciones%2Cp_Ii9lcy9wdWJsaWNhY29lcy82YWQyYTc2NzYzOWY2MmIxMWFkYmI3YWMi%2Cs_ownM7VCFTvIxWAXx.png" "og:image:height": "600" "og:image:type": image/png "og:image:width": "1200" "og:title": "Disordered D-vector model: mean field renormalization group treatment • CBPF Index" "twitter:image": "https://index.cbpf.br/_og/d/c_Item%2Ctitulo_~RGlzb3JkZXJlZCBELXZlY3RvciBtb2RlbDogbWVhbiBmaWVsZCByZW5vcm1hbGl6YXRpb24gZ3JvdXAgdHJlYXRtZW50%2Ctipo_~Tm90YSBkZSBGw61zaWNh%2Ccor_~I2E4MmMwMA%2Cautores_~TS5MLiBMeXJhOyBTLiBDb3V0aW5obw%2Cdetalhe_1987%2Csecao_Publicaciones%2Cp_Ii9lcy9wdWJsaWNhY29lcy82YWQyYTc2NzYzOWY2MmIxMWFkYmI3YWMi%2Cs_ownM7VCFTvIxWAXx.png" --- > Index of every page on this site: [llms.txt](https://index.cbpf.br/llms.txt) **Nota de Física****Publicado** # **Disordered D-vector model: mean field renormalization group treatment** **M.L. Lyra; S. Coutinho** 1987 [**Descargar PDF **0,6 MB](https://index.cbpf.br/files/publicacao/6ad2a767639f62b11adbb7ac/pdf) [**Contactar al responsable**](mailto:apub@cbpf.br?subject=Disordered%20D-vector%20model%3A%20mean%20field%20renormalization%20group%20treatment) ## **Datos de la publicación**
Autores
M.L. Lyra; S. Coutinho
Tipo
Nota de Física
Estado
Publicado
Fecha de publicación
1987
Descripción
The mean field renormalization group is applied to study crit ical temperatures of the quenched (F,AF and SG phases) an an­nealed (F and AF phases) disordered D-vector model. The phase diagrams, critical temperature against concentration are ana­lytically calculated, plotted and analyzed for the Ising (D =1) , Heisenberg (D =3) and <math>D\rightarrow \infty</math> cases for several values of the competing para­ meter and coordination number and for a particular distribution function. Reentrancies and limiting slope at <math>p_c\,\!</math> of the f erroand antiferromagnetic boundaries are studied in details. There is a critical value of the competing parameter for the existence of reentrancies in these lines. The limiting slope at <math>p_c\,\!</math> is lower bounded by the <math>D\rightarrow \infty</math> value. A mapping is applied to study phase diagram of the antiferromagnetic Ising model with random decorating competing D-vector bond spins. It is found that for a fixed competing parameter there is a lower critical dimensionality <math>D_c\,\!</math> for the stability of the ferromagnetic and spin glass phases. In all diagrams reentrancies are more prominent for higherdimensionalities. The present results are strictly equivalent to the exact results on the Bethe lattice.
Año
1987
Número
CBPF-NF-052/87
Vínculo con tesis
No
Vínculo con beca
No
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