Published January 15, 2009 | Version v1
Journal article Metadata-only

Metal-insulator transition in Na0.75Co1-xRuxO2

Creators

  • 1. Department of Physics, Zhejiang University, Hangzhou 310027 (China)

Description

Powder Na0.75Co1-xRuxO2(0≤x≤0.5) samples were synthesized and characterized by X-ray diffraction analysis. The measurements of their resistivity and susceptibility were carried out. A metal-insulator transition was found with increasing Ru content in Na0.75Co1-xRuxO2 samples. It is suggested that the partial substitution of Ru for Co ions results in the Anderson localization of electrons in CoO2 layers. Unlike Na0.75CoO2 sample, in Na0.75Co1-xRuxO2(x=0.02) sample, the disappearance of a magnetic transition near Tc=22K, which is caused by spin density wave formation, also indicates that a small amount Ru substitution may result in the disorder in CoO2 layers. The substitution effect of Ru on transport and magnetic properties in Na0.75Co1-xRuxO2 system is discussed

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physb.2008.10.005

Additional details

Identifiers

DOI
10.1016/j.physb.2008.10.005;
PII
S0921-4526(08)00436-5;

Publishing Information

Journal Title
Physica. B, Condensed Matter
Journal Volume
404
Journal Issue
1
Journal Page Range
p. 52-54
ISSN
0921-4526
CODEN
PHYBE3

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40058864
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
COBALT COMPOUNDS; COBALT IONS; DENSITY; DIELECTRIC MATERIALS; ELECTRIC CONDUCTIVITY; ELECTRONS; LAYERS; MAGNETIC PROPERTIES; MAGNETIC SUSCEPTIBILITY; METALS; OXYGEN COMPOUNDS; POWDERS; RUTHENIUM COMPOUNDS; RUTHENIUM IONS; SODIUM COMPOUNDS; SPIN; TEMPERATURE RANGE 0013-0065 K; TRANSITION TEMPERATURE; X-RAY DIFFRACTION
Descriptors DEC
ALKALI METAL COMPOUNDS; ANGULAR MOMENTUM; CHARGED PARTICLES; COHERENT SCATTERING; DIFFRACTION; ELECTRICAL PROPERTIES; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; IONS; LEPTONS; MAGNETIC PROPERTIES; MATERIALS; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; REFRACTORY METAL COMPOUNDS; SCATTERING; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS

Optional Information

Copyright
Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.