Crystal field effects and thermoelectric properties of PrFe4Sb12 skutterudite -: art. no. 214421

被引：100

作者：

Bauer, E ^{[1
]}

Berger, S

Paul, C

Mea, MD

Hilscher, G

Michor, H

Reissner, M

Steiner, W

Grytsiv, A

Rogl, P

Scheidt, EW

机构：

[1] Vienna Univ Technol, Inst Festkorperphys, A-1040 Vienna, Austria

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

[3] Univ Augsburg, Lehrstuhl Expt Phys 2, D-86159 Augsburg, Germany

来源：

PHYSICAL REVIEW B | 2002年 / 66卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.66.214421

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Transport and magnetic properties are reported for ternary skutterudites La0.83Fe4Sb12 and Pr0.73Fe4Sb12. Physical properties of Pr0.73Fe4Sb12 are dominated by crystal electric field effects, yielding in the magnetic triplet Gamma(5) as ground state. As a result, long-range magnetic order appears below 4.6 K. Pr0.73Fe4Sb12 exhibits an unusually high electronic contribution to the specific heat C-p/T of several hundred mJ/mol K-2, and a significant value of a nuclear Schottky contribution is derived below about 1 K, primarily related to Pr-141 with a nuclear spin I=5/2. The figure of merit at room temperature, expressing the thermoelectric performance of Pr0.73Fe4Sb12, is about 0.075.

引用

页码：1 / 9

页数：9

共 46 条

[1] Anomalous heavy-fermion and ordered states in the filled skutterudite PrFe4P12 -: art. no. 064446 [J].

Aoki, Y ;

Namiki, T ;

Matsuda, TD ;

Abe, K ;

Sugawara, H ;

Sato, H .

PHYSICAL REVIEW B, 2002, 65 (06) :1-7

[2] HEAT-CAPACITY MEASUREMENTS ON SMALL SAMPLES AT LOW-TEMPERATURES [J].

BACHMANN, R ;

SCHWALL, RE ;

THOMAS, HU ;

ZUBECK, RB ;

KING, CN ;

KIRSCH, HC ;

DISALVO, FJ ;

GEBALLE, TH ;

LEE, KN ;

HOWARD, RE ;

GREENE, RL .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1972, 43 (02) :205-&

[3] Magnetic behaviour of PrFe4Sb12 and NdFe4Sb12 skutterudites [J].

Bauer, E ;

Berger, S ;

Galatanu, A ;

Paul, C ;

Della Mea, M ;

Michor, H ;

Hilscher, G ;

Grytsiv, A ;

Rogl, P ;

Kaczorowski, D ;

Keller, L ;

Hermannsdörfer, T ;

Fischer, P .

PHYSICA B-CONDENSED MATTER, 2002, 312 :840-842

[4] Crystal structure and physical properties of Eu0.83Fe4Sb12 -: art. no. 224414 [J].

Bauer, E ;

Berger, S ;

Galatanu, A ;

Galli, M ;

Michor, H ;

Hilscher, G ;

Paul, C ;

Ni, B ;

Abd-Elmeguid, MM ;

Tran, VH ;

Grytsiv, A ;

Rogl, P .

PHYSICAL REVIEW B, 2001, 63 (22)

[5] Physical properties of skutterudites YbxM4Sb12, M = Fe, Co, Rh, Ir [J].

Bauer, E ;

Galatanu, A ;

Michor, H ;

Hilscher, G ;

Rogl, P ;

Boulet, P ;

Noël, H .

EUROPEAN PHYSICAL JOURNAL B, 2000, 14 (03) :483-493

[6]

BAUER E, IN PRESS ACTA PHYS B

[7]

Bauer E., UNPUB

[8] Superconductivity and heavy fermion behavior in PrOs4Sb12 -: art. no. 100506 [J].

Bauer, ED ;

Frederick, NA ;

Ho, PC ;

Zapf, VS ;

Maple, MB .

PHYSICAL REVIEW B, 2002, 65 (10) :1-4

[9]

BERGER SB, UNPUB

[10] A CORRELATION BETWEEN SPECIFIC-HEAT AND THE RATIO TK/TN IN MAGNETIC KONDO LATTICES [J].

BESNUS, MJ ;

BRAGHTA, A ;

HAMDAOUI, N ;

MEYER, A .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1992, 104 :1385-1386

← 1 2 3 4 5 →