THE CRYSTAL-STRUCTURE OF CETSN (T-EQUIVALENT-TO-NI, PD AND PT)

被引:59
作者
HIGASHI, I
KOBAYASHI, K
TAKABATAKE, T
KASAYA, M
机构
[1] HIROSHIMA UNIV,FAC INTEGRATED ARTS & SCI,HIROSHIMA 730,JAPAN
[2] TOHOKU UNIV,DEPT PHYS,SENDAI,MIYAGI 980,JAPAN
关键词
D O I
10.1016/0925-8388(93)90378-Z
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The structure of CeTSn (T = Ni, Pd and Pt) has been studied by single-crystal X-ray diffractometry, and was refined to the R(R(w)) values 0.044(0.036), 0.029(0.029) and 0.029(0.031) for CeNiSn, CePdSn and CePtSn respectively. The CeTSn compounds crystallize in orthorhombic symmetry belonging to the noncentrosymmetric space group Pn2(l)a; the lattice constants are: a = 7.542(l), b = 4.600 9(4), c = 7.617(1) angstrom (CeNiSn); a = 7.535 6(9), b = 4.704 5(4), c = 7.964 8(9) angstrom (CePdSn); a = 7.463(1), b = 4.628 3(6), c = 8.015 9(8) angstrom (CePtSn). The structure is similar to that of epsilon-TiNiSn (space group: Pnma), possessing the Ce, T and Sn atoms at the Ti, Ni and Si positions respectively. Interatomic distances in each compound are compared with their equivalents in other compounds.
引用
收藏
页码:300 / 302
页数:3
相关论文
共 6 条
[1]  
DAAMS JLC, 1984, PHILIPS J RES, V39, P77
[2]   A SEMI-EMPIRICAL METHOD OF ABSORPTION CORRECTION [J].
NORTH, ACT ;
PHILLIPS, DC ;
MATHEWS, FS .
ACTA CRYSTALLOGRAPHICA SECTION A-CRYSTAL PHYSICS DIFFRACTION THEORETICAL AND GENERAL CRYSTALLOGRAPHY, 1968, A 24 :351-&
[3]  
Pauling L, 1934, Z KRISTALLOGR, V87, P205
[4]  
SAKURAI T, 1979, RIKAGAKU KENKYUSHO H, V55, P69
[5]  
SKOLOZDRA RV, 1984, IAN SSSR NEORG MATER, V20, P604
[6]   FORMATION OF AN ANISOTROPIC ENERGY-GAP IN THE VALENCE-FLUCTUATING SYSTEM CENISN [J].
TAKABATAKE, T ;
TESHIMA, F ;
FUJII, H ;
NISHIGORI, S ;
SUZUKI, T ;
FUJITA, T ;
YAMAGUCHI, Y ;
SAKURAI, J ;
JACCARD, D .
PHYSICAL REVIEW B, 1990, 41 (13) :9607-9610