SEMICONDUCTING PROPERTIES OF THE ISOMORPHOUS COMPOUNDS, CE3AU3SB4 AND CE3PT3SB4

被引:49
作者
KASAYA, M
KATOH, K
TAKEGAHARA, K
机构
[1] Department of Physics, Tohoku University, Sendai
关键词
D O I
10.1016/0038-1098(91)90623-4
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Lattice parameters, electrical resistivity, Hall constant, magnetic susceptibility and specific heat measurements have been made on R3Au3Sb4 (R = La, Ce, Pr) and R3Pt3Sb4 (R = Ce, Pr). It is found that La3Au3Sb4 and Ce3Au3Sb4 show semi-metallic or semiconducting behaviors, while Pr3Pt3Sb4 shows metallic one. Furthermore, it is revealed that the value of the valence of Ce ions in Ce3Au3Sb4 is well-defined 3+. These results indicate that R(3)3+ Au3Sb4 and R(3)3+ Pt3Sb4 are narrow-gap semiconductors and metals, respectively, in agreement with our band calculation on La3Au3Sb4. As for the Ce3Pt3Sb4, it also shows semiconducting property and the Ce ions is in a mixed valence state, similar to that in CeO2.
引用
收藏
页码:797 / 800
页数:4
相关论文
共 14 条
[1]   VALENCE FLUCTUATIONS IN NARROW-BAND OXIDES [J].
ALLEN, JW .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1985, 47-8 (FEB) :168-174
[2]   YTTRIUM-GOLD-ANTIMONY Y3AU3SB4 [J].
DWIGHT, AE .
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1977, 33 (MAY13) :1579-1581
[3]   BAND CALCULATIONS OF RARE-EARTH AND ACTINIDE COMPOUNDS [J].
HARIMA, H ;
MIYAHARA, S ;
YANASE, A .
PHYSICA B, 1990, 163 (1-3) :205-208
[4]   ENERGY BANDSTRUCTURE OF YB12 AND LUB12 [J].
HARIMA, H ;
YANASE, A ;
KASUYA, T .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1985, 47-8 (FEB) :567-569
[5]   ELECTRONIC-STRUCTURE OF CAB6 [J].
HASEGAWA, A ;
YANASE, A .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1979, 12 (24) :5431-5440
[6]   HYBRIDIZATION GAP IN CE3BI4PT3 [J].
HUNDLEY, MF ;
CANFIELD, PC ;
THOMPSON, JD ;
FISK, Z ;
LAWRENCE, JM .
PHYSICAL REVIEW B, 1990, 42 (10) :6842-6845
[7]  
Kasaya M., 1981, Valence Fluctuations in Solids. International Conference on Valence Fluctuations in Solids, P251
[8]   MIXED-VALENCE PROPERTIES OF YBB12 [J].
KASAYA, M ;
IGA, F ;
TAKIGAWA, M ;
KASUYA, T .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1985, 47-8 (FEB) :429-435
[9]   ELECTRICAL-RESISTIVITY, HALL CONSTANT AND MAGNETIC-SUSCEPTIBILITY IN THE KONDO STATES CE(NI1-XPDX)SN AND YBNISN [J].
KASAYA, M ;
TANI, T ;
IGA, F ;
KASUYA, T .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1988, 76-7 :278-280
[10]   VALENCE FLUCTUATING STATE IN SMB6 [J].
KASUYA, T ;
TAKEGAHARA, K ;
FUJITA, T ;
TANAKA, T ;
BANNAI, E .
JOURNAL DE PHYSIQUE, 1979, 40 :308-313