High-pressure synthesis of orthorhombic SrIrO3 perovskite and its positive magnetoresistance
High-pressure synthesis of orthorhombic SrIrO3 perovskite and its positive magnetoresistance
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DOI：
10.1063/1.2908879
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发表时间：
2008-05
影响因子：
3.2
通讯作者：
J. Zhao;L. Yang;Yunjin Yu;F. Y. Li;R. Yu;Z. Fang;Liu-Cheng Chen;C. Jin
中科院分区：
文献类型：
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作者：
J. Zhao;L. Yang;Yunjin Yu;F. Y. Li;R. Yu;Z. Fang;Liu-Cheng Chen;C. Jin
在5GPa和1000°C下合成了正交SrIrO 3钙钛矿结构。它在170 K以下是顺磁性的，在更高温度下转变为未知磁性。在44 K左右观察到由赝能隙引起的金属-绝缘体带型转变。有趣的是，正磁阻，即，电阻随外加磁场的增加而增加，在低于约170 K的正交SrIrO 3钙钛矿中观察到。
The orthorhombic SrIrO3 perovskite was synthesized under 5GPa and 1000°C. It is paramagnetic below about 170K and transfers to an unknown magnetism under higher temperature. A band type metal to insulator transition caused by a pseudogap was observed at about 44K. Interestingly a positive magnetoresistance, i.e., resistance increased with applying magnetic field, was observed in the orthorhombic SrIrO3 perovskite below about 170K.