| Autor: |
Beales, T.P., Mölgg, M., Jutson, J., Friend, C.M. |
| Zdroj: |
Physica Status Solidi (A) - Applications and Materials Science; May 1997, Vol. 161 Issue: 1 p271-282, 12p |
| Abstrakt: |
We report on the synthesis of YBaMn2O5+δ, a new double-layered perovskite material having a tetragonal unit cell with a = 3.9221(3) Å and c = 7.6648(8) Å. Magnetic susceptibility measurements show χmol = (8.9 ± 0.1×103) emu mol1 at 300 K which obeyed a Curie-Weiss law (θ = 43 ± 1 K) down to 166 K (TN) where a large magnetic transition occurs. Above TN, a temperature independent μeff = (4.19 ± 0.07) μB was observed, this is attributed to arising from a magnetic lattice with mixed oxidation state with the main ion being high spin MnIII (d4) with S = 2. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
