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From quantum criticality to enhanced thermopower in strongly correlated layered cobalt oxide

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Academic year: 2021

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FIG. 1. 共 Color online 兲 Schematic picture of the crystal structure of the layered cobalt oxide 关 BiBa 0.66 K 0.36 O 2 兴 CoO 2
FIG. 3. 共 Color online 兲 共 a 兲 Gradual disappearance of the mag- mag-netic anomaly around 6 K and power law T-dependence of the non-Fermi liquid susceptibility in the vicinity of B C = 0.176 T
FIG. 4. 共 Color online 兲 Anomalous temperature dependence of the thermopower. The inset displays S / T as a function of the  tem-perature on a logarithmic scale

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