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Valence State Controlled by Charge Neutrality - Practical Electron Microscopy and Database - - An Online Book - |
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| Microanalysis | EM Book https://www.globalsino.com/EM/ | ||||||||
| This book (Practical Electron Microscopy and Database) is a reference for TEM and SEM students, operators, engineers, technicians, managers, and researchers. | ||||||||
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For perovskite cell structures, octahedral oxygen (O) bonding around the atom (Mn for LaMnO3 as shown in Figure 3135) in B-site generates the crystal field around the B-site atom. The valence states of the atoms (e.g. Mn) are fixed by charge neutrality. In the case of LaMnO3, if the parent compound is doped with Sr2+ for La3+, then Mn3+ (d3) is replaced by Mn4+ in the lattice.
Figure 3135. Octahedral oxygen bonding around the Mn atom in LaMnO3.
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| The book author (Yougui Liao) welcomes your comments, suggestions, and corrections, please click here for submission. If you let book author know once you have cited this book, the brief information of your publication will appear on the “Times Cited” page. | ||||||||
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