Electrical and magnetic properties of the complete solid solution series between SrRuO 3 and LaRhO 3 : Filling t 2 g versus tilting
Electrical and magnetic properties of the complete solid solution series between SrRuO 3 and LaRhO 3 : Filling t 2 g versus tilting
复制标题
SrRuO 3 和 LaRhO 3 之间的完整固溶体系列的电学和磁学特性:填充 t 2 g 与倾斜
DOI:
10.1103/physrevb.83.064417
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发表时间:
2011
影响因子:
3.7
通讯作者:
Barton P
中科院分区:
文献类型:
--
作者:
Barton P
A complete solid solution series between theperovskite ferromagnet SrRuOand the diamagneticperovskite LaRhOhas been prepared. The evolution with compositionin (SrRuO)(LaRhO)of the crystal structure and electrical and magnetic properties has been studied and is reported here. Asincreases, the octahedral tilt angle gradually increases, along with the psuedocubic lattice parameter and unit-cell volume. Electrical resistivity measurements reveal a compositionally driven metal-to-insulator transition between0.1 and 0.2. Ferromagnetic ordering gives over to glassy magnetism for, and no magnetic ordering is found above 2 K for.anddecrease with increasingand remain constant after0.5. The magnetism appears poised between localized and itinerant behavior and becomes more localized with increasing, as evidenced by the evolution of the Rhodes-Wohlfarth ratio.perRu is equal to the quenched spin-onlyvalue across the entire solid solution. Comparisons with SrCaRuOreinforce the important role of structural distortions in determining the magnetic ground state. It is suggested that electrical transport and magnetic properties are not strongly coupled in this system.