| Autor: |
Gorshunov, Boris P., Volkov, Alexander, Kozlov, Gennadij V., Degiorgi, Leonardo, Blank, A., Csiba, T., Dressel, Martin, Kim, Yong, Schwartz, A., Grüner, George |
| Jazyk: |
angličtina |
| Rok vydání: |
1994 |
| Předmět: |
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| Popis: |
The dynamic conductivity has been measured in K0.3MnO3 single crystals in the conducting phase (above 180 K), for the first time over a broad frequency range 1-105 cm-1, using a combination of different spectroscopic techniques. Together with a pseudogap, clearly pronounced excitations are observed below 50 cm-1 for E||b, the direction along which the charge density wave develops. We associate these excitations with charge-density-wave fluctuations which exist even at room temperature and give a collective contribution to the conductivity. For the transverse polarization, E|b, a usual single-particle Drude behavior of the conductivity is observed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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