Powder neutron diffraction studies of Na2Ti2Sb2O and its structure-property relationships

被引：48

作者：

Ozawa, TC

Pantoja, R

Axtell, EA

Kauzlarich, SM

Greedan, JE

Bieringer, M

Richardson, JW

机构：

[1] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA

[2] McMaster Univ, Inst Mat Res, Hamilton, ON L8S 4M1, Canada

[3] Argonne Natl Lab, Intense Pulsed Neutron Source, Argonne, IL 60439 USA

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2000年 / 153卷 / 02期

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

pnictide-oxide; neutron diffraction; CDW; SDW; layered oxide;

D O I：

10.1006/jssc.2000.8758

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The structure of Na2Ti2Sb2O has been investigated by temperature-dependent powder neutron diffraction. Na2Ti2Sb2O crystallizes in I4/mmm symmetry. The structure of this phase can be viewed as an anti-K2NiF4 type where Ti3+ ion is located between two oxygen atoms forming a square-planar lattice. Powder neutron diffraction studies of Na2Ti2Sb2O indicate that this compound has a structural distortion in the [Ti2Sb2O](2-) layer at T approximate to 1120 K, This transition corresponds well to the previously reported anomalous transition temperature of the magnetic susceptibility and electronic resistivity, Several models to explain the data are presented and discussed, (C) 2000 Academic Press.

引用

页码：275 / 281

页数：7

共 41 条

[1] PREPARATION AND CRYSTAL-STRUCTURE OF THE PNICTIDE OXIDES NA2TI2AS2O AND NA2TI2SB2O
ADAM, A
SCHUSTER, HU
[J]. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1990, 584 (05): : 150 - 158
[2] [Anonymous], 1987, ELECT STRUCTURE CHEM
[3] Structure and magnetism in the layered CMR manganites La2-2xSr1+2xMn2O7 (x=0.3, 0.4)
Argyriou, DN
Mitchell, JF
Jorgensen, JD
Goodenough, JB
Radaelli, PG
Cox, DE
Bordallo, HN
[J]. AUSTRALIAN JOURNAL OF PHYSICS, 1999, 52 (02): : 279 - 304
[4] Two-dimensional ferromagnetic correlations above Tc in the naturally layered CMR manganite La2-2xSr1+2xMn2O7 (x = 0.3-0.4)
Argyriou, DN
Kelley, TM
Mitchell, JF
Robinson, RA
Osborn, R
Rosenkranz, S
Sheldon, RI
Jorgensen, JD
[J]. JOURNAL OF APPLIED PHYSICS, 1998, 83 (11) : 6374 - 6378
[5] Phase transition and spin-gap behavior in a layered tetragonal pnictide oxide
Axtell, EA
Ozawa, T
Kauzlarich, SM
Singh, RRP
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 1997, 134 (02) : 423 - 426
[6] POSSIBLE HIGH-TC SUPERCONDUCTIVITY IN THE BA-LA-CU-O SYSTEM
BEDNORZ, JG
MULLER, KA
[J]. ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1986, 64 (02): : 189 - 193
[7] BRECHTEL E, 1979, Z NATURFORSCH B, V30, P777
[8] PNICTIDE OXIDES - A UNIQUE CLASS OF COMPOUNDS
BROCK, SL
KAUZLARICH, SM
[J]. COMMENTS ON INORGANIC CHEMISTRY, 1995, 17 (04) : 213 - 238
[9] Structure-property relationships in a series of mixed layer pnictide oxide compounds: A(2)Mn(3)Pn(2)O(2) (A=Sr, Ba; Pn=P, As, Sb)
Brock, SL
Kauzlarich, SM
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1996, 241 (1-2) : 82 - 88
[10] A2ZN3AS2O2 (A=BA, SR) - A RARE EXAMPLE OF SQUARE-PLANAR ZINC
BROCK, SL
KAUZLARICH, SM
[J]. INORGANIC CHEMISTRY, 1994, 33 (11) : 2491 - 2492

← 1 2 3 4 5 →