Phonon Raman scattering of R2CuO4 (R = Pr, Nd, Sm, and Gd)
| Autor: | Miki Masada, Norio Ogita, Masayuki Udagawa, Kohji Ohbayashi, Jun Akimitsu, Yoshinori Nagaoka |
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| Rok vydání: | 1994 |
| Předmět: |
Physics
Superconductivity Physics and Astronomy (miscellaneous) Condensed matter physics Plane (geometry) Phonon Doping chemistry.chemical_element Condensed Matter Physics Oxygen Electronic Optical and Magnetic Materials Distortion (mathematics) Condensed Matter::Materials Science symbols.namesake Tetragonal crystal system chemistry Condensed Matter::Superconductivity symbols Condensed Matter::Strongly Correlated Electrons Raman scattering |
| Zdroj: | Journal of Superconductivity. 7:449-451 |
| ISSN: | 1572-9605 0896-1107 |
| DOI: | 10.1007/bf00724587 |
| Popis: | For Gd2CuO4, a new symmetry-forbidden phonon for the tetragonal T′ structure is observed. This implies that oxygen in the CuO2 plane is locally distorted along the CuO2 plane. Such distortion has never been observed for other T′-type superconductors, which show superconductivity by Ce doping. The disappearance of superconductivity for Gd can be correlated with the appearance of the distortion due to oxygen in the CuO2 plane. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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