Structural and magnetic phase transitions in mixed-valence cobalt oxides REBaCo4O7 (RE = Lu, Yb, Tm)

被引：73

作者：

Nakayama, N ^{[1
]}

Mizota, T

Ueda, Y

Sokolov, AN

Vasillev, AN

机构：

[1] Yamaguchi Univ, Fac Engn, Dept Adv Mat Sci & Engn, Ube, Yamaguchi 7558611, Japan

[2] Univ Tokyo, Inst Solid State Phys, Mat Design & Charecterizat Lab, Kashiwa, Chiba 2778581, Japan

[3] Moscow MV Lomonosov State Univ, Low Temp Phys Dept, Moscow 119992, Russia

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2006年 / 300卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

mixed valence; cobalt oxide; structural phase transition; magnetic ordering;

D O I：

10.1016/j.jmmm.2005.10.041

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

New mixed valence Co oxides REBaCo4O7 (RE = Lu, Yb, Tm) show structural first-order phase transitions from hexagonal (P6(3)mc) to orthorhombic (Cmc2(1) or lower) system below 170, 180, and 230 K, respectively. The low-temperature phases order magnetically at 47, 75, and 105 K, respectively. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：98 / 100

页数：3

共 9 条

[1] Oxygen nonstoichiometry, structures, and physical properties of YBaCo2O5+x (0.00 ≤ x ≤ 0.52) [J].

Akahoshi, D ;

Ueda, Y .

JOURNAL OF SOLID STATE CHEMISTRY, 2001, 156 (02) :355-363

[2] Interplay of structural, magnetic and transport properties in the layered Co-based perovskite LnBaCo2O5 (Ln = Tb, Dy, Ho) [J].

Fauth, F ;

Suard, E ;

Caignaert, V ;

Domengès, B ;

Mirebeau, I ;

Keller, L .

EUROPEAN PHYSICAL JOURNAL B, 2001, 21 (02) :163-174

[3] Elucidation of a low spin cobalt(II) system in a distorted tetrahedral geometry [J].

Jenkins, DM ;

Di Bilio, AJ ;

Allen, MJ ;

Betley, TA ;

Peters, JC .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (51) :15336-15350

[4] Misfit-layered cobaltite with an anisotropic giant magnetoresistance:: Ca3Co4O9 [J].

Masset, AC ;

Michel, C ;

Maignan, A ;

Hervieu, M ;

Toulemonde, O ;

Studer, F ;

Raveau, B ;

Hejtmanek, J .

PHYSICAL REVIEW B, 2000, 62 (01) :166-175

[5] ON THE CRYSTAL-CHEMISTRY OF A NEW BARIUM RARE-EARTH OXOZINCATE - BA2ER2ZN8O13 [J].

RABBOW, C ;

MULLERBUSCHBAUM, H .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1994, 620 (03) :527-530

[6] Large thermoelectric power in NaCo2O4 single crystals [J].

Terasaki, I ;

Sasago, Y ;

Uchinokura, K .

PHYSICAL REVIEW B, 1997, 56 (20) :12685-12687

[7] Syntheses and structures of compounds with YBaCo4O7-type structure [J].

Valldor, M .

SOLID STATE SCIENCES, 2004, 6 (03) :251-266

[8] The structure of the new compound YBaCo4O7 with a magnetic feature [J].

Valldor, M ;

Andersson, M .

SOLID STATE SCIENCES, 2002, 4 (07) :923-931

[9] Low to high spin-state transition induced by charge ordering in antiferromagnetic YBaCo2O5 [J].

Vogt, T ;

Woodward, PM ;

Karen, P ;

Hunter, BA ;

Henning, P ;

Moodenbaugh, AR .

PHYSICAL REVIEW LETTERS, 2000, 84 (13) :2969-2972

← 1 →