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

页码：201 / 211

页数：11

共 30 条

[1] ARMBRUSTER T, 1990, AM MINERAL, V75, P847
[2] BOND-VALENCE PARAMETERS FOR SOLIDS
BRESE, NE
OKEEFFE, M
[J]. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1991, 47 : 192 - 197
[3] BOND-VALENCE PARAMETERS OBTAINED FROM A SYSTEMATIC ANALYSIS OF THE INORGANIC CRYSTAL-STRUCTURE DATABASE
BROWN, ID
ALTERMATT, D
[J]. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1985, 41 (AUG): : 244 - 247
[4] MODELING THE STRUCTURES OF LA2NIO4
BROWN, ID
[J]. ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 1992, 199 (3-4): : 255 - 272
[5] BROWN ID, 1985, ACTA CRYSTALLOGR B, V41, P240
[6] BURRIEL R, 1992, J MAGN MAGN MATER, V104, P619
[7] CRYSTAL-STRUCTURE OF THE OXIDES BACUGD2O5 AND BA2CU3GDO7-X
CAMPA, JA
DESALAZAR, JMG
GUTIERREZPUEBLA, E
MONGE, MA
RASINES, I
RUIZVALERO, C
[J]. PHYSICAL REVIEW B, 1988, 37 (01): : 529 - 532
[8] NEUTRON-SCATTERING STUDY OF THE STRUCTURE OF Y2BACUO5 AT 294-K AND 77-K
HUNTER, BA
TOWN, SL
DAVIS, RL
RUSSELL, GJ
TAYLOR, KNR
[J]. PHYSICA C, 1989, 161 (5-6): : 594 - 597
[9] 2 MAGNETIC TRANSITIONS AND METAMAGNETISM IN THE SM2BACUO5, EU2BACUO5, GD2BACUO5, DY2BACUO5, HO2BACUO5, ER2BACUO5, TM2BACUO5, YB2BACUO5 COMPOUNDS
LEVITIN, RZ
MILL, BV
MOSHCHALKOV, VV
SAMARIN, NA
SNEGIREV, VV
ZOUBKOVA, J
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1990, 90-1 : 536 - 540
[10] STRUCTURAL REFINEMENTS OF YB2BACUO5 AND LU2BACUO5 BY POWDER NEUTRON-DIFFRACTION
LIGHTFOOT, P
PEI, SY
JORGENSEN, JD
CHANG, YC
JIANG, PZ
VEAL, BW
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 1990, 89 (02) : 385 - 388

← 1 2 3 →