Nanometer structural columns and frustration of magnetic ordering in Nb12O29 -: art. no. 033413

被引：18

作者：

Andersen, EN ^{[1
]}

Klimczuk, T

Miller, VL

Zandbergen, HW

Cava, RJ

机构：

[1] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA

[2] Gdansk Tech Univ, Fac Appl Phys & Math, PL-80952 Gdansk, Poland

[3] Delft Univ Technol, Dept Nanosci, Natl Ctr HREM, NL-2682 AL Delft, Netherlands

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.72.033413

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Single phase samples of the monoclinic and orthorhombic polymorphs of Nb12O29 have been identified and isolated. These polymorphs have different arrangements of nanometer dimension structural columns of ReO3-type niobium oxygen arrays: They differ in structure after a 3-nm translation in one of three dimensions while being the same in the other two. Magnetic susceptibility measurements show that one polymorph displays an antiferromagnetic transition at 12 K, along with short-range order fluctuations up to 25 K, while the other shows strict Curie-Weiss behavior down to 2 K.

引用

页数：4

共 13 条

[1] Specific-heat evidence for strong electron correlations in the thermoelectric material (Na,Ca) Co2O4 [J].