Algebraic method of determining bond length of perovskite compounds doped with Mn2+
| Autor: | Wei-Li Shuen, Zhao-Min Li |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Materials science
Extended X-ray absorption fine structure Condensed Matter Physics Molecular physics Power law Electronic Optical and Magnetic Materials law.invention Bond length Condensed Matter::Materials Science Chemical bond law Exponent Electrical and Electronic Engineering Absorption (electromagnetic radiation) Electron paramagnetic resonance Perovskite (structure) |
| Zdroj: | Physica B: Condensed Matter. 270:244-248 |
| ISSN: | 0921-4526 |
| Popis: | An algebraic method is proposed for calculating the exponent n and constant K in the power law 10Dq=KR−n. By using this method, the values of n and K for the cubic perovskites KMnF3 and RbMnF3 are derived and then used to determine the true Mn2+–F− bond length R in crystals of KMgF3, KZnF3, RbCdF3, and CsCaF3 doped with Mn2+ from the reported optical spectra. The results obtained are in good agreement with those derived from the electron paramagnetic resonance data and the extended X-ray absorption fine structure techniques. Thus, as a new theoretical method, it is valuable and convenient for the determination of the bond lengths. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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