Crystal distortion in spinels containing Mn3+ ions
作者： K.S. Irani , A.P.B. Sinha , A.B. Biswas
DOI: 10.1016/0022-3697(60)90181-5
关键词: Distortion 、 Crystallography 、 Tetragonal crystal system 、 Crystal 、 Octahedron 、 Chemistry 、 Spinel 、 Diffraction 、 Ion 、 Chemical composition
摘要: The effect of chemical composition on tetragonal-cubic spinel transformations in the systems Mn3O4-MgAl2O4 and MgMn2O4-MgAl2O4 has been studied by X-ray diffraction. unit cell dimensions various compounds have determined at room temperature. c' a' values do not change linearly with but show an abrupt a critical composition, beyond which = a', cubic structure. cation distribution worked out from analysis diffraction intensities, thus correlation between actual number distorting Mn3+ ions octahedral sites, degree distortion, obtained. required these sites to maintain tetragonal structure temperature accurately determined.
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sci-hub.se 参考文章(11)
J.D. Dunitz, L.E. Orgel, Electronic properties of transition-metal oxides—I: Distortions from cubic symmetry Journal of Physics and Chemistry of Solids. ,vol. 3, pp. 20- 29 ,(1957) , 10.1016/0022-3697(57)90043-4
A. P. B. Sinha, N. R. Sanjana, A. B. Biswas, On the structure of some anganites Acta Crystallographica. ,vol. 10, pp. 439- 440 ,(1957) , 10.1107/S0365110X57001450
J. B. Goodenough, A. L. Loeb, Theory of Ionic Ordering, Crystal Distortion, and Magnetic Exchange Due to Covalent Forces in Spinels Physical Review. ,vol. 98, pp. 391- 408 ,(1955) , 10.1103/PHYSREV.98.391
D.G. Wickham, W.J. Croft, Crystallographic and magnetic properties of several spinels containing trivalent ja-1044 manganese Journal of Physics and Chemistry of Solids. ,vol. 7, pp. 351- 360 ,(1958) , 10.1016/0022-3697(58)90285-3
C. J. Kriessman, S. E. Harrison, Cation Distributions in Ferrospinels. Magnesium-Manganese Ferrites Physical Review. ,vol. 103, pp. 857- 860 ,(1956) , 10.1103/PHYSREV.103.857
Donald S. McClure, The distribution of transition metal cations in spinels Journal of Physics and Chemistry of Solids. ,vol. 3, pp. 311- 317 ,(1957) , 10.1016/0022-3697(57)90034-3
K. P. SINHA, Electronic Configuration of Cations in some Distorted Spinels Nature. ,vol. 181, pp. 835- 836 ,(1958) , 10.1038/181835B0
E. J. W. Verwey, J. H. de Boer, Cation arrangement in a few oxides with crystal structures of the spinel type Recueil des Travaux Chimiques des Pays-Bas. ,vol. 55, pp. 531- 540 ,(1936) , 10.1002/RECL.19360550608
Robert C. Miller, Albert Savage, Asymmetric Hysteresis Loops and the Pyroelectric Effect in Barium Titanate Journal of Applied Physics. ,vol. 30, pp. 808- 811 ,(1959) , 10.1063/1.1735245
E. Prince, Crystal and magnetic structure of copper chromite Acta Crystallographica. ,vol. 10, pp. 554- 556 ,(1957) , 10.1107/S0365110X5700198X