ANTIFERROMAGNETISM AND ITS RELATION TO THE SUPERCONDUCTING PHASES OF UPT3

被引:67
作者
ISAACS, ED
ZSCHACK, P
BROHOLM, CL
BURNS, C
AEPPLI, G
RAMIREZ, AP
PALSTRA, TTM
ERWIN, RW
STUCHELI, N
BUCHER, E
机构
[1] BROOKHAVEN NATL LAB, ORISE, UPTON, NY 11973 USA
[2] JOHNS HOPKINS UNIV, BALTIMORE, MD 21218 USA
[3] WESTERN MICHIGAN UNIV, KALAMAZOO, MI 49008 USA
[4] NATL INST STAND & TECHNOL, GAITHERSBURG, MD 20899 USA
[5] RISO NATL LAB, DK-4000 ROSKILDE, DENMARK
[6] UNIV KONSTANZ, W-7750 CONSTANCE, GERMANY
关键词
D O I
10.1103/PhysRevLett.75.1178
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Using magnetic x-ray and neutron diffraction in UPt3, we find that a suppression of the antiferromagnetic scattering intensity in the superconducting phase is due to a reduction in the magnitude of the staggered moment with no change in symmetry. The existence of the suppression as well as the magnetic correlation lengths are not affected by the presence or absence of a visible splitting in the superconducting transition. The simplest models wherein antiferromagnetic order provides the symmetry-breaking field for the splitting do not provide a compete explanation of our results.
引用
收藏
页码:1178 / 1181
页数:4
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