Reconstruction from small-angle neutron scattering measurements of the real space magnetic field distribution in the mixed state of Sr2RuO4.
Reconstruction from small-angle neutron scattering measurements of the real space magnetic field distribution in the mixed state of Sr2RuO4.
复制标题
通过小角度中子散射测量重建 Sr2RuO4 混合状态下的真实空间磁场分布。
DOI：
10.1103/physrevlett.84.6094
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发表时间：
2000
影响因子：
8.6
通讯作者：
Y. Maeno
中科院分区：
文献类型：
--
作者：
P. G. Kealey;T. Riseman;E. Forgan;L. M. Galvin;A. Mackenzie;S. Lee;D. Paul;R. Cubitt;D. Agterberg;R. Heeb;Z. Mao;Y. Maeno
我们已经测量了衍射中子散射强度从方磁通晶格在钙钛矿超导体Sr 2 RuO 4，这被认为是表现出p波配对的两个组件的序参量。在很宽的场和温度范围内，不同磁通晶格布拉格反射的相对强度与单分量金兹伯格-朗道理论不一致，但与双分量p波金兹伯格-朗道理论定性一致。
We have measured the diffracted neutron scattering intensities from the square magnetic flux lattice in the perovskite superconductor Sr2RuO4, which is thought to exhibit p-wave pairing with a two-component order parameter. The relative intensities of different flux lattice Bragg reflections over a wide range of field and temperature have been shown to be inconsistent with a single component Ginzburg-Landau theory but qualitatively agree with a two-component p-wave Ginzburg-Landau theory.