Effect of a structural disorder on the magnetic properties of the sodium–cobalt tellurate Na3.70Co1.15TeO6

A new layered oxide, sodium–cobalt tellurate Na 3.70 Co 1.15 TeO 6 , is synthesized and structurally characterized, and its static and dynamic magnetic properties are studied. This compound has a new monoclinic structure type with quasi-one-dimensional cation ordering in magnetically active layers....

Full description

Saved in:
Bibliographic Details
Published in:Journal of experimental and theoretical physics 2017-04, Vol.124 (4), p.612-616
Main Authors: Zvereva, E. A., Stratan, M. I., Shukaev, I. L., Nalbandyan, V. B., Vasil’ev, A. N.
Format: Article
Language:English
Subjects:
Antiferromagnetism
Classical and Quantum Gravitation
Cobalt compounds
Disorder
Dynamic structural analysis
Elementary Particles
Ferromagnetism
Magnetic properties
Neel temperature
Order
Particle and Nuclear Physics
Phase Transition in Condensed System
Physics
Physics and Astronomy
Quantum Field Theory
Relativity Theory
Sodium
Solid State Physics
Spin dynamics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A new layered oxide, sodium–cobalt tellurate Na 3.70 Co 1.15 TeO 6 , is synthesized and structurally characterized, and its static and dynamic magnetic properties are studied. This compound has a new monoclinic structure type with quasi-one-dimensional cation ordering in magnetically active layers. This compound is antiferromagnetically ordered at a Néel temperature T N ~ 3.3 K, and the temperature and field dependences of magnetization suggest competing antiferromagnetic and ferromagnetic interactions. EPR spectroscopy reveals complex spin dynamics when temperature changes and the presence of two different paramagnetic centers, which is attributed to the existence of two structurally nonequivalent (regular and antisite) positions for magnetic Co 2+ ions.
ISSN:1063-7761
1090-6509
DOI:10.1134/S1063776117030104