94 II-5-1-Le système SrO-Fe 2 O 3 -P 2 O 5 95 II-5-2-Le système PbO-Fe 2 O 3 -P 2 O 5 97 II-5-3-Le système CaO-Fe 2 O 3 -P 2 O 5 118 III-1-Synthèse, croissance et résolution structurale des phases AFe 3 O(PO 4 ) 3 (A=Ca, Sr, Pb), 103 III-Croissance cristalline de la phase PbFe 3 O(PO 4 ) 3 par combinaison Bridgman/flux, analyse des cristaux obtenus, résolution sur monocristal et description structurale, p.118 ,
124 III-2-3-a, p.125 ,
132 III-5-Analyse des cristaux obtenus par croissance par 134 III-5-1-Analyse MEB 135 III-5-3-L'orientation cristallographique, Caractérisation par diffraction des RX, affinement structural .......................... 138 III-5-5-Résolution structurale sur monocristal, p.142 ,
154 III-8-1-Discussion, p.156 ,
167 IV-Propriétés magnétiques des phases AFe 3 O(PO 4 ) 3 (A=Ca, Sr, Pb) poudres et des monocristaux de la phase PbFe 3 O(PO 4 ) 173 IV-1-Rappel sur la théorie des transitions de phase du second ordre 173 IV-1-1-Analogie entre les transitions liquide gaz et paramagnétique ferromagnétique du second ordre 173 IV-2-Hamiltonien d'interactions entre moments magnétiques 175 IV-3-Résultats généraux sur les transitions magnétiques du second ordre, p.180 ,
182 IV-6-Les propriétés magnétiques des cristaux et des frittés de PbFe 3 O(PO 4 ) 185 IV-6-1-Conditions expérimentales 185 IV-6-1-a-Susceptibilité magnétique et cycles d'aimantation, ., p.185 ,
185 IV-7-1-Résultats 186 IV-7-1-a-Susceptibilité magnétique, aimantation, aimantation à l'isotherme, . ,
241 V-5-Description structurale et propriétés magnétiques 245 V-5-1-Description de la structure, p.251 ,
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124 III-2-3-a, p.125 ,
132 III-5-Analyse des cristaux obtenus par croissance par 134 III-5-1-Analyse MEB 135 III-5-3-L'orientation cristallographique, Caractérisation par diffraction des RX, affinement structural .......................... 138 III-5-5-Résolution structurale sur monocristal, p.142 ,
154 III-8-1-Discussion, p.156 ,
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229 V-1-Introduction, Synthèse et caractérisation de la nouvelle phase Langbeinite Pb 3 Fe 4 (PO 4 )Des phosphates de la famille des, p.235 ,
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282 VII-5-1-Méthode de correctionCartes de répartition et Carte spectrale, ., p.287 ,
294 VII-9-L'analyse de symétrie et de forme continues 300 VII-9-1-L'analyse de symétrie continue, 300 VII-9-2-L'analyse de forme continue, p.300 ,
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