Structures and electromagnetic properties of the A-site ordered/disordered manganites; RBaMn2O6/R0.5Ba0.5MnO3 (R = Y and rare earth elements)
Nakajima, T. · Ueda, Y.
Original · EN
The discovery of novel structural and physical properties in the A-site ordered manganite RBaMn₂O₆ (R = Y and rare earth elements) has demanded new comprehension about perovskite manganese oxides. In the present study, the A-site disordered form R₀.₅Ba₀.₅MnO₃ was successfully synthesized and compared with RBaMn₂O₆ in the structures and electromagnetic properties. R₀.₅Ba₀.₅MnO₃ has a primitive cubic perovskite cell. Unexpectedly the magnetic glassy states are dominant as the ground state for R₀.₅Ba₀.₅MnO₃. A peculiar behavior, the steplike ultrasharp magnetization and resistivity change, has been observed in Pr₀.₅Ba₀.₅MnO₃.
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