Effect of a magnetic field on long-range magnetic order in stage-4 and stage-6 superconducting La2CuO4+y -: art. no. 054501

被引：45
|
作者：
Khaykovich, B [1 ]
Birgeneau, RJ
Chou, FC
Erwin, RW
Kastner, MA
Lee, SH
Lee, YS
Smeibidl, P
Vorderwisch, P
Wakimoto, S
机构：
[1] MIT, Dept Phys, Cambridge, MA 02139 USA
[2] MIT, Ctr Mat Sci & Engn, Cambridge, MA 02139 USA
[3] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada
[4] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA
[5] Hahn Meitner Inst Berlin GmbH, BENSC 4, D-14109 Berlin, Germany
来源：
PHYSICAL REVIEW B | 2003年 / 67卷 / 05期
关键词：
D O I：
10.1103/PhysRevB.67.054501
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have measured the enhancement of the static incommensurate spin-density wave (SDW) order by an applied magnetic field in stage-4 and stage-6 samples of superconducting La2CuO4+y. We show that the stage-6 La2CuO4+y (T-c=32 K) forms static long-range SDW order with the same wave vector as that in the previously studied stage-4 material. We have measured the field dependence of the SDW magnetic Bragg peaks in both stage-4 and stage-6 materials at fields up to 14.5 T. A recent model of competing SDW order and superconductivity describes these data well.
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页数：6
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