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Chapter and Conference Paper
Electronic States of High-Tc Cuprates Investigated by Optical Measurements
Based on the optical spectra, the electronic states of the high-Tc cuprates are discussed. In the high-Tc superconductivity composition, the charge transfer gap is almost completely destroyed, resulting in the...
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Chapter and Conference Paper
Phonons in (Sm,Ce)2(Ba,Sm)2Cu3Ox
Polarized Raman spectra of (Sm,Ce)2(Ba,Sm)2Cu3Ox which has Cu-O5 pyramid structure as well as YBa2Cu3O7 have been measured at room temperature using single crystals. Peaks have been observed at 442 and 537 cm−1 i...