THE DEFECT CHEMISTRY OF LAMNO3+/-DELTA .3. THE DENSITY OF (LA,A)MNO3+DELTA (A=CA, SR, BA)
THE DEFECT CHEMISTRY OF LAMNO3+/-DELTA .3. THE DENSITY OF (LA,A)MNO3+DELTA (A=CA, SR, BA)
复制标题
DOI：
10.1006/jssc.1994.1142
复制
发表时间：
1994-05-01
影响因子：
3.3
通讯作者：
CORDFUNKE, EHP
中科院分区：
文献类型：
--
作者：
VANROOSMALEN, JAM;CORDFUNKE, EHP
利用比重瓶、缺陷化学分析、晶格参数和化学分析，测定了x = 0，0.15，0.30（A = Ca，Sr，Ba）和x = 0.50（A = Sr）时La_（1-x）AxMnO_（3+）δ的密度。LaMnO 3 + δ中的氧过剩由等量的La和Mn空位补偿。密度测量证实了这一点。根据该缺陷模型，LaMnO 3 + δ的密度对于0小于或等于δ小于或等于0.18几乎与δ无关，并且计算为（6.57 +/-0.02）g。cm-3。同样的缺陷模型被应用于计算La 1-xAxMnO 3 + δ的密度。(C)1994年出版社出版。
The density of La1-xAxMnO3+delta was determined for x = 0,0.15, 0.30 (A = Ca, Sr, Ba) and for x = 0.50 (A = Sr) using a pycnometer, defect chemical considerations, lattice parameters, and chemical analyses. The oxygen excess in LaMnO3+delta is compensated by both La and Mn vacancies in equal amounts. This is confirmed by density measurements. According to this defect model the density of LaMnO3+delta, is almost independent of delta for 0 less-than-or-equal-to delta less-than-or-equal-to 0.18 and is calculated to be (6.57 +/- 0.02) g . cm-3. The same defect model is applied to calculate the density of La1-xAxMnO3+delta. (C) 1994 Academic Press, Inc.