Transport evidence of a magnetic quantum phase transition in electron-doped high-temperature superconductors
Transport evidence of a magnetic quantum phase transition in electron-doped high-temperature superconductors
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DOI：
10.1103/physrevb.76.020503
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发表时间：
2007-07-01
影响因子：
3.7
通讯作者：
Greene, R. L.
中科院分区：
文献类型：
--
作者：
Yu, W.;Higgins, J. S.;Greene, R. L.
我们目前的反铁磁性的电子掺杂的铜酸盐Pr 2-xCexCuO 4的薄膜中的磁输运证据。结果表明，在最佳掺杂浓度x=0.15时，样品具有明显的静态或准静态反铁磁特征，在x=0.16时出现量子相变，在0.12时反铁磁和超导共存
We present magnetotransport evidence for antiferromagnetism in films of the electron-doped cuprates Pr2-xCexCuO4. Our results show clear signature of static or quasistatic antiferromagnetism up to optimal doping x=0.15, with a quantum phase transition close to x=0.16, and a coexistence of antiferromagnetism and superconductivity for 0.12