Paramagnetism with anomalously large magnetic susceptibility in β(fcc)-cobalt probed by x-ray magnetic circular dichroism up to 170 GPa

被引:24
作者
Ishimatsu, Naoki [1 ]
Kawamura, Naomi [2 ]
Maruyama, Hiroshi [1 ]
Mizumaki, Masaichiro [2 ]
Matsuoka, Takahiro [2 ]
Yumoto, Hirokatsu [2 ]
Ohashi, Haruhiko [2 ]
Suzuki, Motohiro [2 ]
机构
[1] Hiroshima Univ, Grad Sch Sci, Dept Phys, Hiroshima 7398526, Japan
[2] Japan Synchrotron Radiat Res Inst, Sayo, Hyogo 6795198, Japan
来源
PHYSICAL REVIEW B | 2011年 / 83卷 / 18期
关键词
EDGE;
D O I
10.1103/PhysRevB.83.180409
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We present direct observation of the magnetic state in a beta(fcc)-Co high-pressure phase accompanied by the epsilon ->beta (hcp -> fcc) transition by means of Co K-edge x-ray magnetic circular dichroism up to 170 GPa. In contrast to the prediction made in previous studies that beta(fcc)-Co is nonmagnetic, this study concludes that beta(fcc)-Co is paramagnetic with anomalously large magnetic susceptibility chi = 1.5(4) x 10(-3) cm(3)/g.
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页数:4
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