STRUCTURAL CHARACTERIZATION OF R2BACUO5 (R = Y, LU, YB, TM, ER, HO, DY, GD, EU AND SM) OXIDES BY X-RAY AND NEUTRON-DIFFRACTION

被引：303
|
作者：
SALINASSANCHEZ, A [1 ]
GARCIAMUNOZ, JL [1 ]
RODRIGUEZCARVAJAL, J [1 ]
SAEZPUCHE, R [1 ]
MARTINEZ, JL [1 ]
机构：
[1] INST MAX VON LAUE PAUL LANGEVIN,F-38042 GRENOBLE,FRANCE
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 1992年 / 100卷 / 02期
关键词：
D O I：
10.1016/0022-4596(92)90094-C
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
R2BaCuO5 compounds with R = rare earth atom from Sm to Lu have been studied by neutron and X-ray powder diffraction. All of them are isostructural, and belong to the space group Pnma (Z = 4). A comparative study of the influence of the rare earth size on the structural parameters is presented. The stability of the structure is estimated from the agreement between valence bond sums and formal valence states. A systematic variation of the structural stability is found depending on the size of the rare earth atom. © 1992.
引用
收藏
页码：201 / 211
页数：11
相关论文
共 50 条
  • [1] Bond covalencies in R2BaCuO5 (R = Sm, Gd, Dy, Ho, Y, Er, Tm, Yb, Lu)
    Wu, ZJ
    Zhang, SY
    CHEMICAL RESEARCH IN CHINESE UNIVERSITIES, 1999, 15 (02) : 169 - 173
  • [2] MAGNETIC-INTERACTIONS IN R2BACUO5 (R=Y,SM,EU,GD,DY,HO,ER,TM,YB,LU) COMPOUNDS
    MOSHCHALKOV, VV
    SAMARIN, NA
    GRISHCHENKO, IO
    MILL, BV
    ZOUBKOVA, J
    SOLID STATE COMMUNICATIONS, 1991, 78 (10) : 879 - 882
  • [3] Two magnetic transitions and metamagnetism in the R2BaCuO5 (R = Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb) compounds
    Levitin, R.Z.
    Mill, B.V.
    Moshchalkov, V.V.
    Samarin, N.A.
    Snegirev, V.V.
    Zoubkova, J.
    Journal of Magnetism and Magnetic Materials, 1990, 90 pt 91 : 536 - 540
  • [4] EPR-SPECTRA IN R2BACUO5 (R = Y, SM, EU, GD, DY, HO) OXIDES
    KOKSHAROV, YA
    MOSHCHALKOV, VV
    GIPPIUS, AA
    MILL, BV
    ZOUBKOVA, Y
    GUDENKO, SV
    MEZHUEV, AN
    PHYSICA C, 1991, 185 (pt 2): : 1151 - 1152
  • [5] STRUCTURAL CHARACTERIZATION OF R(2)CU(2)O(5) (R=YB, TM, ER, Y, AND HO) OXIDES BY NEUTRON-DIFFRACTION
    GARCIAMUNOZ, JL
    RODRIGUEZCARVAJAL, J
    JOURNAL OF SOLID STATE CHEMISTRY, 1995, 115 (02) : 324 - 331
  • [6] STRUCTURAL CHARACTERIZATION AND POLYMORPHISM OF R2BANIO5 (R = ND, GD, DY, Y, HO, ER, TM, YB) STUDIED BY NEUTRON-DIFFRACTION
    GARCIAMATRES, E
    MARTINEZ, JL
    RODRIGUEZCARVAJAL, J
    ALONSO, JA
    SALINASSAHCNEZ, A
    SAEZPUCHE, R
    JOURNAL OF SOLID STATE CHEMISTRY, 1993, 103 (02) : 322 - 333
  • [7] THE OXIDES A2BACUO5 (A=Y,SM,EU,GD,DY,HO,ER,YB)
    MICHEL, C
    RAVEAU, B
    JOURNAL OF SOLID STATE CHEMISTRY, 1982, 43 (01) : 73 - 80
  • [8] CALORIMETRIC STUDY OF THE GREEN PHASES R2BACUO5 (R=GD,DY,HO,ER,LU,Y)
    BURRIEL, R
    CASTRO, M
    PIQUE, C
    SALINASSANCHEZ, A
    SAEZPUCHE, R
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1992, 104 (pt 1) : 627 - 629
  • [9] Structural Characterization of R2Cu2O5 (R = Yb, Tm, Er, Y, and Ho) Oxides by Neutron Diffraction
    Garcia-Mu, QQ oz, J. L.
    Rodriguez-Carvajal, J.
    Journal of Statistical Computation and Simulation, 1995, 525 (355)
  • [10] SPECTRAL STUDIES OF MAGNETIC-ORDERING IN THE CUPRATES R2BACUO5 (R=SM, EU, TM, YB, LU)
    PAUKOV, IV
    POPOVA, MN
    MILL, BV
    PHYSICS LETTERS A, 1992, 169 (04) : 301 - 307
12345