| Autor: |
Cooper, S. L., Kotz, A. L., Karlow, M. A., Klein, M. V., Lee, W. C., Giapintzakis, John, Ginsberg, D. M. |
| Přispěvatelé: |
Giapintzakis, John [0000-0002-7277-2662] |
| Jazyk: |
angličtina |
| Rok vydání: |
1992 |
| Zdroj: |
Physical Review B |
| Popis: |
Optical studies of single-domain crystals of YBa2Cu3O6+x allow us to separate the CuO2-plane and CuO-chain contributions to the optical conductivity as a function of doping between 0.025 and 5.5 eV. We find several interesting consequences of doping on the optical conductivity of YBa2Cu3O6+x: the 4.1-eV transition in tetragonal YBa2Cu3O6.1 is split into a- and b-axis-polarized components by CuO-chain formation oscillator strength associated with the charge-transfer band of insulating YBa2Cu3O6.1 is redistributed to low frequencies and the low-frequency conductivity in the CuO2 planes evolves into a non-Drude response comprised of a single resolvable component. The CuO-chain conductivity, by contrast, is dominated by a midinfrared absorption band. © 1992 The American Physical Society. 45 2549 2552 2549-2552 |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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