Unconventional metallic behavior and superconductivity in the K-Mo-O system

被引：13

作者：

Alves, L. M. S. ^{[1
]}

Damasceno, V. I. ^{[1
]}

dos Santos, C. A. M. ^{[1
]}

Bortolozo, A. D. ^{[1
]}

Suzuki, P. A. ^{[1
]}

Izario Filho, H. J. ^{[1
]}

Machado, A. J. S. ^{[1
,2
]}

Fisk, Z. ^{[2
]}

机构：

[1] Univ Sao Paulo, Escola Engn Lorena, BR-12602810 Lorena, SP, Brazil

[2] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 17期

基金：

巴西圣保罗研究基金会;

关键词：

MOLYBDENUM DIOXIDE; PHASE-DIAGRAM; OXIDES; TEMPERATURE; K0.3MOO3; TERNARY; BRONZE;

D O I：

10.1103/PhysRevB.81.174532

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Transport properties and magnetization measurements of the KxMoO2-delta (0 <= x <= 0.25) compound are reported. The compound crystallizes in the oxygen deficient MoO2 monoclinic structure with potassium atoms occupying interstitial positions. An unconventional metallic behavior with power-law temperature dependence is related to a magnetic ordering. Superconducting transition with small volume fraction is also observed near 7 K for a sample with low potassium composition.

引用

页数：5

共 48 条

[1] 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)

[2] A REFINEMENT OF CRYSTAL STRUCTURE OF MOLYBDENUM DIOXIDE [J].

BRANDT, BG ;

SKAPSKI, AC .

ACTA CHEMICA SCANDINAVICA, 1967, 21 (03) :661-&

[3] Superconductivity at 41 K and its competition with spin-density-wave instability in layered CeO1-xFxFeAs [J].

Chen, G. F. ;

Li, Z. ;

Wu, D. ;

Li, G. ;

Hu, W. Z. ;

Dong, J. ;

Zheng, P. ;

Luo, J. L. ;

Wang, N. L. .

PHYSICAL REVIEW LETTERS, 2008, 100 (24)

[4] Superconductivity at 43 K in SmFeAsO1-xFx [J].

Chen, X. H. ;

Wu, T. ;

Wu, G. ;

Liu, R. H. ;

Chen, H. ;

Fang, D. F. .

NATURE, 2008, 453 (7196) :761-762

[5] AC COMPLEX IMPEDANCE, DC RESISTIVITY, LI-7 AND NA-23 NMR-STUDIES OF THE LAYERED LI(NA)XMO2O4 SYSTEM [J].

COLSON, S ;

SZU, SP ;

KLEIN, LC ;

TARASCON, JM .

SOLID STATE IONICS, 1991, 46 (3-4) :283-289

[6] Anisotropic electrical resistivity of quasi-one-dimensional Li0.9Mo6O17 determined by the Montgomery method [J].

da Luz, M. S. ;

dos Santos, C. A. M. ;

Moreno, J. ;

White, B. D. ;

Neumeier, J. J. .

PHYSICAL REVIEW B, 2007, 76 (23)

[7] Magnetic order close to superconductivity in the iron-based layered LaO1-xFxFeAs systems [J].

de la Cruz, Clarina ;

Huang, Q. ;

Lynn, J. W. ;

Li, Jiying ;

Ratcliff, W., II ;

Zarestky, J. L. ;

Mook, H. A. ;

Chen, G. F. ;

Luo, J. L. ;

Wang, N. L. ;

Dai, Pengcheng .

NATURE, 2008, 453 (7197) :899-902

[8] Two-fluid model for transport properties of granular superconductors [J].

dos Santos, C. A. M. ;

Oliveira, C. J. V. ;

da Luz, M. S. ;

Bortolozo, A. D. ;

Sandim, M. J. R. ;

Machado, A. J. S. .

PHYSICAL REVIEW B, 2006, 74 (18)

[9] Electrical transport in single-crystalline Li0.9Mo6O17:: A two-band Luttinger liquid exhibiting Bose metal behavior [J].

dos Santos, C. A. M. ;

da Luz, M. S. ;

Yu, Yi-Kuo ;

Neumeier, J. J. ;

Moreno, J. ;

White, B. D. .

PHYSICAL REVIEW B, 2008, 77 (19)

[10] Dimensional crossover in the purple bronze Li0.9Mo6O17 [J].

dos Santos, C. A. M. ;

White, B. D. ;

Yu, Yi-Kuo ;

Neumeier, J. J. ;

Souza, J. A. .

PHYSICAL REVIEW LETTERS, 2007, 98 (26)

← 1 2 3 4 5 →