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Interplay between mesoscopic phase separation and bulk magnetism in the layered NaxCoO2 by Zorkovska, A.; Orendac, M.; Sebek, J.; Santava, E.; Svoboda, P.; Bradaric, I.; Savic, I.; Feher, A. is a scholarly article available to read on EtoBox.

What is Interplay between mesoscopic phase separation and bulk magnetism in the layered NaxCoO2 about?

Specific heat of the layered NaxCoO2 (x=0.65, 0.70 and 0.75) oxides has been measured in the temperature range of 3-360 K and magnetic field of 0 and 9 T. The analysis of data, assuming the combined effect of inter-layer superexchange and the phase separation into mesoscopic magnetic domains with localized spins embedded in a matrix with itinerant electronic character, suggests that the dominant contribution to the specific heat in the region of short-range ordering is mediated by quasi-2D antiferromagnetic clusters, perpendicular to the CoO2 layers.

Author

Zorkovska, A.; Orendac, M.; Sebek, J.; Santava, E.; Svoboda, P.; Bradaric, I.; Savic, I.; Feher, A.

Published

2005

Language

EN