Intermediate valence in the filled skutterudite compound YbFe4Sb12

被引：142

作者：

Dilley, NR ^{[1
]}

Freeman, EJ

Bauer, ED

Maple, MB

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

来源：

PHYSICAL REVIEW B | 1998年 / 58卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.58.6287

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have synthesized and characterized YbFe4Sb12, a member of the class of filled skutterudite (LaFe4P12-type) compounds. Measurements of the lattice parameter, magnetization, electrical resistivity, and specific heat suggest that the Yb ions have an intermediate valence and that the effective mass of the conduction electrons is moderately enhanced at low temperatures. The coefficient of the electronic specific heat is estimated to be gamma(0) = 140 mJ mol(-1) K-2, and we observe a characteristic temperature for the Yb ion valence fluctuations of T* similar to 50 K. No superconductivity was detected down to T = 0.40 K.

引用

页码：6287 / 6290

页数：4

共 19 条

[1] BASOV DN, COMMUNICATION
[2] PREPARATION AND STRUCTURAL INVESTIGATIONS OF ANTI-MONIDES WITH THE LAFE4P12 STRUCTURE
BRAUN, DJ
JEITSCHKO, W
[J]. JOURNAL OF THE LESS-COMMON METALS, 1980, 72 (01): : 147 - 156
[3] Caillat T., 1993, Proceedings of the Eleventh International Conference on Thermoelectrics, P98
[4] Magnetic properties of alkaline earth and lanthanoid iron antimonides AFe(4)Sb(12) (A=Ca,Sr,Ba, La-Nd,Sm,Eu) with the LaFe4P12 structure
Danebrock, ME
Evers, CBH
Jeitschko, W
[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1996, 57 (04) : 381 - 387
[5] RARE-EARTH AND URANIUM TRANSITION-METAL PNICTIDES WITH LAFE4P12 STRUCTURE
EVERS, CBH
JEITSCHKO, W
BOONK, L
BRAUN, DJ
EBEL, T
SCHOLZ, UD
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1995, 224 (02) : 184 - 189
[6] GAJEWSKI DA, IN PRESS J PHYS COND
[7] LAFE4P12 WITH FILLED COAS3-TYPE STRUCTURE AND ISOTYPIC LANTHANOID-TRANSITION METAL POLYPHOSPHIDES
JEITSCHKO, W
BRAUN, D
[J]. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1977, 33 (NOV): : 3401 - 3406
[8] MATTENS WCM, 1977, COMMUN PHYS, V2, P147
[9] UFE4P12 AND CEFE4P12 - NONMETALLIC ISOTYPES OF SUPERCONDUCTING LAFE4P12
MEISNER, GP
TORIKACHVILI, MS
YANG, KN
MAPLE, MB
GUERTIN, RP
[J]. JOURNAL OF APPLIED PHYSICS, 1985, 57 (08) : 3073 - 3075
[10] LOW-TEMPERATURE PROPERTIES OF THE FILLED SKUTTERUDITE CEFE4SB12
MORELLI, DT
MEISNER, GP
[J]. JOURNAL OF APPLIED PHYSICS, 1995, 77 (08) : 3777 - 3781

← 1 2 →