Non-Fermi liquid behavior in the layered NaxCoO2
DOI (Low Temperature Physics):
https://doi.org/10.1063/1.2747070Ключові слова:
cobaltates, specific heat, non-Fermi liquid behavior, phase separation, magnetic susceptibility.Анотація
The specific heat in the temperature region of 100 mK–360 K and in magnetic fields of 0 and 9 T, as well as the susceptibility from 2 to 360 K and in a magnetic field of 1 T have been measured in the layered NaxCoO2 (x = 0.65, 0.70, and 0.75) oxides. Analysis of the data revealed non-Fermi liquid behavior. The character of the observed anomalies seems to be connected to the mesoscopic phase separation, underlining the impact of disorder on the low-lying excitations in cobaltates.
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Опубліковано
2007-09-26
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(1)
A. Zorkovská, J. Šebek, E. Šantavá, I. Bradaric, and A. Feher, Non-Fermi liquid behavior in the layered NaxCoO2, Low Temp. Phys. 33, (2007) [Fiz. Nizk. Temp. 33, 1243-1247, (2007)] DOI: https://doi.org/10.1063/1.2747070.
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