作者: Qiuhang Li , Xueping Yuan , Lei Xing , Mingxiang Xu
DOI: 10.1038/SREP27712
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摘要: Polycrystalline layered perovskite Sr2CoO4 sample was synthesized by high temperature and pressure method. The staircaselike behavior has been observed in the magnetization resistivity versus field curves of at low temperature. main features steps can be obtained from measured results: (i) positions external magnetic which occur are varying different measurement runs, (ii) only appear disappear with a slight increase temperature, (iii) dependent on sweep rate. Based magneto-transport Sr2CoO4, unusual phenomenon ascribed to an avalanche flipping domains terms random theory.