From antiferromagnetic order to static magnetic stripes:: The phase diagram of (La,Eu)2-xSrxCuO4
From antiferromagnetic order to static magnetic stripes:: The phase diagram of (La,Eu)2-xSrxCuO4
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DOI：
10.1103/physrevlett.85.4590
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发表时间：
2000-11-20
影响因子：
8.6
通讯作者：
Büchner, B
中科院分区：
文献类型：
--
作者：
Klauss, HH;Wagener, W;Büchner, B
用μ SR技术研究了（La，Eu）（2-x）SrxCuO_4（x ≤ 0.2）的磁序。在该系统中，低温四极晶系（LTT）结构存在于整个掺杂范围内，并且可以遵循从I = 0处的长程反铁磁状态到静态磁条的演变。我们发现一个非单调变化的尼尔温度随x的增加和所获得的LTT相的磁相图类似于通用的铜酸盐的相图中的超导电性被替换为第二个反铁磁相。
The magnetic order of (La,Eu)(2-x)SrxCuO4 (x less than or equal to 0.2) has been investigated with mu SR techniques. In this system a low temperature tetragonal (LTT) structure is present in the entire range of doping and it is possible to follow the evolution from the long range antiferromagnetic state at I = 0 to the static magnetic stripes. We find a nonmonotonic change of the Neel temperature with increasing x and the obtained magnetic phase diagram of the LTT phase resembles the generic phase diagram of the cuprates where the superconductivity is replaced by a second antiferromagnetic phase.