"TITLE","AUTHORS","SUBJECT","SUBJECT_RELATED","DESCRIPTION","PUBLISHER","AVAILABILITY","RESEARCH_ORG","SPONSORING_ORG","PUBLICATION_COUNTRY","PUBLICATION_DATE","CONTRIBUTING_ORGS","LANGUAGE","RESOURCE_TYPE","TYPE_QUALIFIER","JOURNAL_ISSUE","JOURNAL_VOLUME","RELATION","COVERAGE","FORMAT","IDENTIFIER","REPORT_NUMBER","DOE_CONTRACT_NUMBER","OTHER_IDENTIFIER","DOI","RIGHTS","ENTRY_DATE","OSTI_IDENTIFIER","PURL_URL" "Chemical, structural and magnetic studies of new mono- and diphosphates appearing in ternary diagrams AO-CuO-(P{sub 2}O{sub 5}); A= Mg, Ca, Sr, Ba; Etudes chimique, structurale et magnetique de nouveaux mono- et diphosphates apparaissant dans les diagrammes ternaires AO-CuO-(P{sub 2}O{sub 5}); A= Mg, Ca, Sr, Ba","Moqine, A","37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; COPPER PHOSPHATES; CRYSTAL STRUCTURE; MAGNETIC PROPERTIES; STRUCTURAL CHEMICAL ANALYSIS; TERNARY ALLOY SYSTEMS; BARIUM PHOSPHATES; CALCIUM PHOSPHATES; EXPERIMENTAL DATA; HEISENBERG MODEL; ISING MODEL; MAGNESIUM PHOSPHATES; STRONTIUM PHOSPHATES; 400201; CHEMICAL AND PHYSICOCHEMICAL PROPERTIES","","A systematic study of mixed mono- and diphosphates of AO-CuO-(P{sub 2}O{sub 5}) systems (A= Mg, Ca, Sr, Ba) has been carried out. This study showed up, on one hand, continuous and wide ranges in magnesium system and on the other hand, eight new phases in the other systems: Sr sub 18 Cu sub 3 (PO{sub 4}){sub 14}, A{sub 2} Cu (PO{sub 4}){sub 2}, (A= Sr, Ba), Sr{sub 3} Cu{sub 3} (PO{sub 4}){sub 4}, BaCu{sub 2} (PO{sub 4}){sub 2} and ACu(P{sub 2}O{sub 7}) (A= Ca, Sr, Ba). The crystalline structures of SrCu(P{sub 2}O{sub 7}), BaCu(P{sub 2} O{sub 7}),Sr{sub 3} Cu{sub 3} (PO{sub 4}){sub 4} and BaCu{sub 2} (PO{sub 4}){sub 2} phosphates have been described and discussed. The first compound presents a Tunnel structure and the three others have Foliation structures. The magnetic behaviours of some Cu sup 2+ ions phos-phates have been correlated to their crystalline structures. The experimental data have been parametered using the Ising model and/or the Heisenberg model. In this work, three Ising theoretical models have been developed. This magnetic study showed up new chains of antiferro- or ferrimagnetic Cu sup 2+ ions. 59 figs., 32 tabs., 113 refs. (author).","","OSTI; NTIS (US Sales Only); INIS","Universite Mohammed 5, Rabat (Morocco). Faculte des Sciences","","Morocco","1990-12-01","","French","Thesis/Dissertation","Numerical Data; Miscellaneous","","","Other Information: TH: Thesis (D. d`etat es Sc.).; PBD: 1 Dec 1990","","Medium: X; Size: 164 p.","ON: DE92614763","INIS-mf-13082","","Other: ON: DE92614763; TRN: MA9100019014094","https://doi.org/","","2008-02-12","10113058",""