Metallicity and thermopower of the misfit cobaltite [Bi2Ba1.8Co0.2O4]RS[CoO2]2 -: art. no. 045112

被引：91

作者：

Hervieu, M ^{[1
]}

Maignan, A ^{[1
]}

Michel, C ^{[1
]}

Hardy, V ^{[1
]}

Créon, N ^{[1
]}

Raveau, B ^{[1
]}

机构：

[1] CNRS, ISMRA, UMR 6508, Lab CRISMAT, F-14050 Caen, France

来源：

PHYSICAL REVIEW B | 2003年 / 67卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.67.045112

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The misfit cobaltite, [Bi2Ba1.8Co0.2O4](RS)[CoO2](2), built up from the stacking of rocksalt-type layers (RS) and single hexagonal [CoO2] layers (H), has been synthesized. This complex structure, described in a commensurate monoclinic supercell, exhibits a double commensurate modulation: a misfit modulation with b(RS)/b(H)=2 and an intrinsic modulation of the RS layers [q(i)=0.2(a(RS)+b(RS))]. This oxide is characterized by an enhanced metallic behavior with respect to the misfit Bi(Pb)/Sr/Co/O cobaltites and in contrast to these compounds by a positive magnetoresistance and significantly smaller values of the thermoelectric power (<100 μV K-1). A comparison of its behavior with those of Sr2RuO4 and of the heavy-fermion-like oxide LiV2O4 is presented.

引用

页数：7

共 29 条

[1] Evidence for the first misfit layer oxide Tl-0.41(Sr0.9O)(1.12)CoO2 [J].

Boullay, P ;

Domenges, B ;

Hervieu, M ;

Groult, D ;

Raveau, B .

CHEMISTRY OF MATERIALS, 1996, 8 (07) :1482-1489

[2]

Fetisov E. P., 1987, Soviet Physics - JETP, V65, P59

[3] Thermoelectric properties of Bi2Sr2Co2Ox polycrystalline materials [J].

Funahashi, R ;

Matsubara, I ;

Sodeoka, S .

APPLIED PHYSICS LETTERS, 2000, 76 (17) :2385-2387

[4] Large thermopower in a metallic cobaltite:: The layered Tl-Sr-Co-O misfit -: art. no. 172101 [J].

Hébert, S ;

Lambert, S ;

Pelloquin, D ;

Maignan, A .

PHYSICAL REVIEW B, 2001, 64 (17)

[5] A new family of misfit layered oxides with double rock salt layers Biα(A0.75±εBi0.25±εO)(3+3x/2)MO2 (A = Ca, Sr and M = Co, Cr) [J].

Hervieu, M ;

Boullay, P ;

Michel, C ;

Maignan, A ;

Raveau, B .

JOURNAL OF SOLID STATE CHEMISTRY, 1999, 142 (02) :305-318

[6] Thermoelectric properties of Bi2.3-xPbxSr2.6Co2Oy single crystals [J].

Itoh, T ;

Terasaki, I .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2000, 39 (12A) :6658-6660

[7] Linear-field dependence of the normal-state in-plane magnetoresistance of Sr2RuO4 [J].

Jin, R ;

Liu, Y ;

Lichtenberg, F .

PHYSICAL REVIEW B, 1999, 60 (14) :10418-10422

[8] Synthesis, characterization, and magnetic susceptibility of the heavy-fermion transition-metal oxide LiV2O4 [J].

Kondo, S ;

Johnston, DC ;

Miller, LL .

PHYSICAL REVIEW B, 1999, 59 (04) :2609-2626

[9] LiV2O4: A heavy fermion transition metal oxide [J].

Kondo, S ;

Johnston, DC ;

Swenson, CA ;

Borsa, F ;

Mahajan, AV ;

Miller, LL ;

Gu, T ;

Goldman, AI ;

Maple, MB ;

Gajewski, DA ;

Freeman, EJ ;

Dilley, NR ;

Dickey, RP ;

Merrin, J ;

Kojima, K ;

Luke, GM ;

Uemura, YJ ;

Chmaissem, O ;

Jorgensen, JD .

PHYSICAL REVIEW LETTERS, 1997, 78 (19) :3729-3732

[10] A bismuth cobaltite with an intrinsically modulated misfit layer structure:: [Bi0.87SrO2]2[CoO2]1.82 [J].

Leligny, H ;

Grebille, D ;

Pérez, O ;

Masset, AC ;

Hervieu, M ;

Michel, C ;

Raveau, B .

COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE C-CHIMIE, 1999, 2 (7-8) :409-414

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