Optical Properties and Electronic States of High-Tc Cuprates and Their Related Compounds
Reflectivity of high-T c cuprates and their related compounds was measured and their doping effects were discussed. The spectra change with doping most drastically in Cu oxides (doped charge-transfer insulator) and least in Mn oxides (doped Mott-Hubbard insulator). These results show that the oxygen bands or oxygen holes play an important role in cuprates.
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