Muon spin rotation study of magnetism in multilayer HgBaCaCuO superconductor

Tokiwa, Kazuyasu*; Mikusu, Satoshi*; Higemoto, Wataru ; Nishiyama, Kusuo*; Iyo, Akira*; Tanaka, Yasumoto*; Kotegawa, Hisashi*; Mukuda, Hidekazu*; Kitaoka, Yoshio*; Watanabe, Tsuneo*

Zero- and longitudinal-field muon-spin rotation (ZF-SR and LF-SR) measurements were carried out on a multi-layered HgBaCaCuO (Hg-1245) superconductor with $_{rm c}$ of 108 K. With decreasing temperature, the observed ZF-SR function changed from a Gaussian-type to an exponential-type below 60 K and zero field muon precession was also observed below 45 K. These SR signals are attributed to the development of the antiferromagnetic ordering in inner CuOplanes with a low carrier concentration. These results seem to indicate clear evidence that antiferromagnetism microscopically coexists with superconductivity in the Hg-1245 superconductor below 60 K.

Language	:	English
Journal	:	Physica C
Volume	:	460-462
Number	:	2
Pages	:	p.892 - 895
Publication Year/Month	:	2007/09
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Paper URL	:	https://doi.org/10.1016/j.physc.2007.03.187
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Keywords	:	no keyword
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Registration No. : AA20071025
JAEA Abstracts No. :
Paper Submission No. : 6808

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