Magnetic properties of single-crystalline CeCuGa3

被引：15

作者：

Joshi, Devang A. ^{[1
]}

Burger, P. ^{[1
]}

Adelmann, P. ^{[1
]}

Ernst, D. ^{[1
]}

Wolf, T. ^{[1
]}

Sparta, K. ^{[2
]}

Roth, G. ^{[2
]}

Grube, K. ^{[1
]}

Meingast, C. ^{[1
]}

v. Loehneysen, H. ^{[1
,3
]}

机构：

[1] Karlsruhe Inst Technol, Inst Festkorperphys, D-76021 Karlsruhe, Germany

[2] Rheinisch Westfal Tech Hsch RWTH Aachen, Inst Crystallog, D-52056 Aachen, Germany

[3] Karlsruhe Inst Technol, Inst Phys, D-76031 Karlsruhe, Germany

来源：

PHYSICAL REVIEW B | 2012年 / 86卷 / 03期

关键词：

STRUCTURAL CHEMISTRY; BEHAVIOR; ALLOYS; DIFFRACTION; CECUXGA4-X; FIELD; AU;

D O I：

10.1103/PhysRevB.86.035144

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic behavior of single-crystalline CeCuGa3 has been investigated. The compound forms in a tetragonal BaAl4-type structure consisting of rare-earth planes separated by site-disordered Cu-Ga layers. If the Cu-Ga site disorder is reduced, CeCuGa3 adopts the related, likewise tetragonal, BaNiSn3-type structure, in which the inversion symmetry is lost. We report on a detailed study of single crystals with the centrosymmetric structure variant which exhibit ferromagnetic order below approximate to 4 K with a strong, planar anisotropy. The magnetic behavior above the transition temperature can be well understood by the crystal-field splitting of the 4 f Hund's rule ground-state multiplet F-2(5/2) of Ce3+.

引用

页数：6

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