Unusual ordering behavior in single-crystal U2Rh3Si5

被引：29

作者：

Becker, B ^{[1
]}

Ramakrishnan, S ^{[1
]}

Menovsky, AA ^{[1
]}

Nieuwenhuys, GJ ^{[1
]}

Mydosh, JA ^{[1
]}

机构：

[1] TATA INST FUNDAMENTAL RES,BOMBAY 400005,MAHARASHTRA,INDIA

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.78.1347

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have grown single crystals of the ternary uranium compound U2Rh3Si5 which crystallizes in a monoclinic Lu2Co3Si5 structure with space group C2/c. U2Rh3Si5 exhibits a single dramatic phase transition at 25.6 K. Here the specific heat peaks to more than 100 J/U-mol K, and the magnetic susceptibility is strongly anisotropic and shows a steplike drop at the ordering temperature. electrical resistivity is also anisotropic with indications for the appearance of superzone and spin-wave gaps. We relate this behavior to a (weak) first-order phase transition into a simultaneous spin-quadrupolar ordering.

引用

页码：1347 / 1350

页数：4

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