Thermal and electronic properties of CePd3In2

被引：8

作者：

Kaldarar, H. ^{[1
]}

Royanian, E. ^{[1
]}

Michor, H. ^{[1
]}

Hilscher, G. ^{[1
]}

Bauer, E. ^{[1
]}

Gribanov, A. ^{[2
]}

Shtepa, D. ^{[2
]}

Rogl, P. ^{[3
]}

Grytsiv, A. ^{[3
]}

Seropegin, Y. ^{[2
]}

Nesterenko, S. ^{[2
]}

机构：

[1] Vienna Univ Technol, Inst Solid State Phys, A-1040 Vienna, Austria

[2] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119991, Russia

[3] Univ Vienna, Inst Phys Chem, A-1090 Vienna, Austria

来源：

PHYSICAL REVIEW B | 2009年 / 79卷 / 20期

基金：

奥地利科学基金会;

关键词：

antiferromagnetism; cerium alloys; electrical resistivity; indium alloys; Kondo effect; lattice constants; magnetic transitions; palladium alloys; RKKY interaction; space groups; X-ray diffraction; HEAT;

D O I：

10.1103/PhysRevB.79.205104

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, we report on the physical properties of orthorhombic CePd3In2 in comparison with isotypic LaPd3In2 (space group Pnma). X-ray powder diffraction Rietveld analysis revealed single-phase composition of both specimens CePd3In2 and LaPd3In2 confirming the CePd3In2 type with space group Pnma. The lattice parameters are a=1.02788(8), b=0.46237(4), and c=0.98765(9) nm for CePd3In2 and a=1.02986(14), b=0.46424(6), and c=0.99498(13) nm for LaPd3In2. Physical properties of CePd3In2 at low temperatures are dominated by a magnetic phase transition into an antiferromagnetic ground state below T-N similar to 2.1 K. A mutual interplay of the Kondo effect and the Rudermann-Kittel-Kasuy-Yoshida interaction is responsible for a large Sommerfeld value gamma similar to 500 mJ/mol K-2 derived from a model which simultaneously describes the Kondo effect and long-range magnetic order.

引用

页数：5

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