Raman spectroscopy study of sodium-lithium cobaltite

被引：9

作者：

Semenova, A. ^{[1
]}

Kellerman, D. ^{[1
]}

Baklanova, I. ^{[1
]}

Perelyaeva, L. ^{[1
]}

Vovkotrub, E. ^{[2
]}

机构：

[1] Russian Acad Sci, Ural Branch, Inst Solid State Chem, Ekaterinburg 620990, Russia

[2] Russian Acad Sci, Ural Branch, Inst High Temp Electrochem, Ekaterinburg 620219, Russia

来源：

CHEMICAL PHYSICS LETTERS | 2010年 / 491卷 / 4-6期

基金：

俄罗斯基础研究基金会;

关键词：

ENHANCED THERMOPOWER; PHASE; OXIDES; LICOO2;

D O I：

10.1016/j.cplett.2010.04.001

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report on a Raman scattering study of the LiCoO2, gamma-Na0.7CoO2 and Li0.42Na0.36CoO2 phases. The Raman spectrum of the ordered cobaltite Li0.42Na0.36CoO2 consists of a set of seven distinct peaks with the wave numbers around 190, 445, 467, 513, 572, 609 and 674 cm (1). It exhibits features of the spectra for LiCoO2 and gamma-Na0.7CoO2 and therefore can be considered as a superposition of these two spectra. It may be supposed that in the structure of the double cobaltite the bonding between sodium-and lithium-containing blocks is rather weak. (C) 2010 Elsevier B. V. All rights reserved.

引用

页码：169 / 171

页数：3

共 35 条

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

Ando, Y ;

Miyamoto, N ;

Segawa, K ;

Kawata, T ;

Terasaki, I .

PHYSICAL REVIEW B, 1999, 60 (15) :10580-10583

[2]

[Anonymous], [No title captured]

[3] THE STRUCTURE OF LI0.43NA0.36COO1.96 USING NEUTRON POWDER DIFFRACTION [J].

BALSYS, RJ ;

DAVIS, RL .

SOLID STATE IONICS, 1994, 69 (01) :69-74

[4] Electronic model for CoO2 layer based systems:: Chiral resonating valence bond metal and superconductivity -: art. no. 097003 [J].

Baskaran, G .

PHYSICAL REVIEW LETTERS, 2003, 91 (09)

[5] Magnetic ordering and spin waves in Na0.82CoO2 -: art. no. 157205 [J].

Bayrakci, SP ;

Mirebeau, I ;

Bourges, P ;

Sidis, Y ;

Enderle, M ;

Mesot, J ;

Chen, DP ;

Lin, CT ;

Keimer, B .

PHYSICAL REVIEW LETTERS, 2005, 94 (15)

[6] Bulk antiferromagnetism in Na0.82CoO2 single crystals -: art. no. 100410 [J].

Bayrakci, SP ;

Bernhard, C ;

Chen, DP ;

Keimer, B ;

Kremer, RK ;

Lemmens, P ;

Lin, CT ;

Niedermayer, C ;

Strempfer, J .

PHYSICAL REVIEW B, 2004, 69 (10)

[7] Charge ordering and magnetopolarons in Na0.82CoO2 -: art. no. 167003 [J].

Bernhard, C ;

Boris, AV ;

Kovaleva, NN ;

Khaliullin, G ;

Pimenov, AV ;

Yu, L ;

Chen, DP ;

Lin, CT ;

Keimer, B .

PHYSICAL REVIEW LETTERS, 2004, 93 (16) :167003-1

[8] Magnetic and thermoelectric properties of layered LixNayCoO2 [J].

Bos, J. W. G. ;

Hertz, J. T. ;

Morosan, E. ;

Cava, R. J. .

JOURNAL OF SOLID STATE CHEMISTRY, 2007, 180 (11) :3211-3217

[9] Charge ordering, commensurability, and metallicity in the phase diagram of the layered NaxCoO2 -: art. no. 247001 [J].

Foo, ML ;

Wang, YY ;

Watauchi, S ;

Zandbergen, HW ;

He, T ;

Cava, RJ ;

Ong, NP .

PHYSICAL REVIEW LETTERS, 2004, 92 (24) :247001-1

[10] Physical characteristic study of LiCoO2 prepared by molten salt synthesis method in 550-800 °C [J].

Fu, Juan ;

Bai, Ying ;

Liu, Caiyun ;

Yu, Hongjing ;

Mo, Yujun .

MATERIALS CHEMISTRY AND PHYSICS, 2009, 115 (01) :105-109

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