Absence of collective effects in Heisenberg systems with localized magnetic moments

Home | About RECERCAT | Contact

Català | Castellano

All of RECERCAT

By Communities &
Collections By Defense Date By Authors By Titles By Subject

This Collection

By Defense Date By Authors By Titles By Subject

Statistics

View Statistics All RECERCAT

My RECERCAT

Other repositories directory

RECERCAT Home > Universitat de Barcelona > Ciència dels Materials i Química Física > Articles publicats en revistes (Ciència dels Materials i Química Física) > View document

To access the full text documents, please follow this link: http://hdl.handle.net/2445/10839

dc.contributor	Universitat de Barcelona
dc.contributor.author	Illas i Riera, Francesc
dc.contributor.author	Moreira, Ibério de Pinho Ribeiro
dc.contributor.author	Graaf, Cohen de
dc.contributor.author	Castell, O.
dc.contributor.author	Casanovas Salas, Jordi
dc.date	2010-01-22T13:50:03Z
dc.date	2010-01-22T13:50:03Z
dc.date	1997
dc.identifier.citation	0163-1829
dc.identifier.citation	125945
dc.identifier.uri	http://hdl.handle.net/2445/10839
dc.format	4 p.
dc.format	application/pdf
dc.language.iso	eng
dc.publisher	The American Physical Society
dc.relation	Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.56.5069
dc.relation	Physical Review B, 1997, vol. 56, núm. 9, p. 5069-5072.
dc.relation	http://dx.doi.org/10.1103/PhysRevB.56.5069
dc.rights	(c) The American Physical Society, 1997
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Superconductivitat
dc.subject	Materials
dc.subject	Estructura electrònica
dc.subject	Superconductivity
dc.subject	Materials
dc.subject	Electronic structure
dc.title	Absence of collective effects in Heisenberg systems with localized magnetic moments
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion
dc.description.abstract	Existence of collective effects in magnetic coupling in ionic solids is studied by mapping spin eigenstates of the Heisenberg and exact nonrelativistic Hamiltonians on cluster models representing KNiF3, K2NiF4, NiO, and La2CuO4. Ab initio techniques are used to estimate the Heisenberg constant J. For clusters with two magnetic centers, the values obtained are about the same for models having more magnetic centers. The absence of collective effects in J strongly suggests that magnetic interactions in this kind of ionic solids are genuinely local and entangle only the two magnetic centers involved.

Show simple item record

All of RECERCAT

This Collection

Statistics

My RECERCAT

Related documents

Other documents of the same author