Magnetic ordering of Mn and Ru in (La0.52Ba0.48) (Mn0.51Ru0.49)O3
作者： SY Wu , W‐H Li , CC Yang , JW Lynn , RS Liu
关键词: Ferromagnetism 、 Neutron diffraction 、 Magnetic field 、 Condensed matter physics 、 Spins 、 Magnetization 、 Perovskite (structure) 、 Magnetic susceptibility 、 Chemistry 、 Lattice constant
摘要: Neutron diffraction, dc magnetization, and ac magnetic susceptibility measurements have been performed to study the properties of perovskite (La0.52Ba0.48) (Mn0.51Ru0.49)O3. The compound crystallizes into a cubic Pmm symmetry with lattice constant = 3.9661(4) A at room temperature. Two anomalies, around 160 60 K, can clearly be seen in results, peak positions for both anomalies shifting higher temperature as field is applied. diffraction show that occur high low temperatures are associated, ferromagnetic ordering Mn Ru spins, respectively. spins were found TC (Mn) ≈ 195 K (Ru) 80 saturated moment 〈μz–Mn〉 2.21(5)μB 〈μz–Ru〉 1.00(5)μB spins. (© 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
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