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Journal article

Infrared Conductivity and Charge Ordering in NaCoO2

Abstract:

The infrared conductivity of NaxCoO2 is studied as a function of doping and temperature for x between 0.5 and 1. Charge localization in CoO2 layers shows up through a far-infrared peak (FIP) in the infrared conductivity which coexists with a small Drude contribution. Long-range ordering at x = 0.5 is confirmed to create a far-infrared gap, in addition to the FIP. At high x, the formation of a Spin-Density Wave reported below 22 K dramatically shifts the FIP to higher energy when x is incommen...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevB.72.024550

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Journal:
PHYSICAL REVIEW B
Volume:
72
Issue:
2
Publication date:
2005-01-31
DOI:
EISSN:
1550-235X
ISSN:
1098-0121
URN:
uuid:9f6d938f-930e-4401-83c6-aaa1dd243194
Source identifiers:
4518
Local pid:
pubs:4518
Language:
English
Keywords:

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