Magnetic-field effect on static antiferromagnetic order above the upper critical field in Nd1.85Ce0.15CuO4

被引：9
|
作者：
Matsuura, M [1 ]
Dai, P
Kang, HJ
Lynn, JW
Argyriou, DN
Onose, Y
Tokura, Y
机构：
[1] Oak Ridge Natl Lab, Condensed Matter Sci Div, Oak Ridge, TN 37831 USA
[2] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA
[3] Natl Inst Stand & Technol, Ctr Neutron Res, Gaithersburg, MD 20899 USA
[4] Hahn Meitner Inst Berlin GmbH, D-14109 Berlin, Germany
[5] Japan Sci & Technol, ERATO, Spin Superstruct Project, Tsukuba, Ibaraki 3058562, Japan
[6] Correlated Electron Res Ctr, Tsukuba, Ibaraki 3058562, Japan
[7] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan
来源：
PHYSICAL REVIEW B | 2004年 / 69卷 / 10期
关键词：
D O I：
10.1103/PhysRevB.69.104510
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We use neutron scattering to study the effect of a c-axis-aligned magnetic field on superconducting Nd1.85Ce0.15CuO4 for fields above its upper critical field. We also determine the effect of such a field on the cubic impurity phase (Nd,Ce)(2)O-3. By comparing these data with previous field-induced results on other electron-doped materials, we conclude that while the impurity phase is responsible for scattering at (1/2,0,0), application of a magnetic field does induce a quantum phase transition from the superconducting to an antiferromagnetic state in electron-doped high-T-c superconductors.
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页数：5
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