195Pt NMR study in U(Pt1-xPdx)3

被引：4

作者：

Kohori, Y ^{[1
]}

Ishii, M ^{[1
]}

Kohara, T ^{[1
]}

机构：

[1] Himeji Inst Technol, Fac Sci, Dept Mat Sci, Kamigori, Hyogo 67812, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1998年 / 177卷

关键词：

heavy fermions; actinide compounds; NMR; antiferromagnets;

D O I：

10.1016/S0304-8853(97)00536-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pt-195 NMR study has been performed in U(Pt1-xPdx)(3). The hyperfine coupling constant of Pt-195 was obtained to be -85 kOe/mu(B) in U(Pt1-xPdx)(3) for 0 less than or equal to x less than or equal to 0.05. The large transferred field arises from the spin polarization of the Pt 4d-electron induced by the magnetic moment of U 5f-electrons. In the antiferromagnetically ordered (AF) state of U(Pt0.95Pd0.05)(3), which has the ordered moment of 0.65 mu(B), the NMR spectrum in zero field has shown the existence of an internal field of about 30 kOe. Since the magnetic structures of UPt3 and U(Pt0.95Pd0.05)(3) proposed by the neutron diffraction experiment are the same, an appearance of the internal held is also expected in UPt3. However, the internal held associated with a tiny moment (0.02 mu(B)) has never been observed in UPt3. This result has shown that the AF order in UPt3 is not static but fluctuating. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：441 / 442

页数：2