Ordered magnetic state in PrFe4Sb12 single crystals -: art. no. 214417

被引：29

作者：

Butch, NP ^{[1
]}

Yuhasz, WM

Ho, PC

Jeffries, JR

Frederick, NA

Sayles, TA

Zheng, XG

Maple, MB

Betts, JB

Lacerda, AH

Woodward, FM

Lynn, JW

Rogl, P

Giester, G

机构：

[1] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

[2] Univ Calif San Diego, Inst Pure & Appl Phys Sci, La Jolla, CA 92093 USA

[3] Los Alamos Natl Lab, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA

[4] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA

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

[6] Univ Vienna, Inst Mineral & Kristallog, A-1090 Vienna, Austria

[7] Saga Univ, Dept Phys, Saga, Japan

来源：

PHYSICAL REVIEW B | 2005年 / 71卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.71.214417

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The filled skutterudite compound Pr0.87Fe4Sb12 was prepared in single-crystal form and characterized via x-ray-diffraction, neutron-diffraction, specific-heat, electrical-resistivity, and magnetization measurements. Long-range magnetic ordering occurs at T-c approximate to 4.1 K, with the bulk magnetization described by the critical exponents beta=0.57,gamma=0.884, and delta=2.55. The magnetic structure consists of ordered moments on both Pr and Fe sites and may involve a ferrimagnetic arrangement. The electrical resistivity exhibits a very weak dependence on both applied magnetic field and pressure at most temperatures, but at low temperatures, its power-law temperature-dependence varies with magnetic field. Specific-heat measurements indicate an enhanced effective mass.

引用

页数：11

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