{"title":"On the cohesion of small clusters of alkali metals","authors":"J. Friedel","doi":"10.1051/JPHYS:0199000510180202300","DOIUrl":null,"url":null,"abstract":"Recent results on the cohesion of small neutral and ionised clusters of Na and K are interpreted in a simple Hubbard model, leading to values of transfer and Coulomb integrals of about 0.5 to 1 eV. These values justify the use of a Hartree Fock treatment of electron interactions and are coherent with the fairly compact structures of these aggregates Des resultats recents concernant la cohesion de petits amas neutres et ionises de Na et K sont interpretes dans un modele simple de Hubbard. Ils conduisent a des integrales de transfert et de Coulomb de l'ordre de 0,5 a 1 eV. Ces valeurs justifient l'utilisation d'un traitement de Hartree Fock des interactions electroniques et sont coherents avec les structures assez compactes de ces amas","PeriodicalId":14747,"journal":{"name":"Journal De Physique","volume":"5 1","pages":"2023-2032"},"PeriodicalIF":0.0000,"publicationDate":"1990-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal De Physique","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1051/JPHYS:0199000510180202300","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
Recent results on the cohesion of small neutral and ionised clusters of Na and K are interpreted in a simple Hubbard model, leading to values of transfer and Coulomb integrals of about 0.5 to 1 eV. These values justify the use of a Hartree Fock treatment of electron interactions and are coherent with the fairly compact structures of these aggregates Des resultats recents concernant la cohesion de petits amas neutres et ionises de Na et K sont interpretes dans un modele simple de Hubbard. Ils conduisent a des integrales de transfert et de Coulomb de l'ordre de 0,5 a 1 eV. Ces valeurs justifient l'utilisation d'un traitement de Hartree Fock des interactions electroniques et sont coherents avec les structures assez compactes de ces amas