Abstract
The carrier distribution among the inequivalent CuO 2 planes in multilayer cuprates is investigated by 63 Cu Knight shift measurement with varying the carrier concentration, δ and the number of CuO 2 plane in a unit cell, n. We found that 70 (60)% of total carriers are doped selectively into two outer CuO 2 planes in n = 3 (4). This indicates resultantly that the inhomogeneity of carrier distribution increases with increasing δ and n in multilayer cuprates.
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Y. Tokunaga et al, submitted to PRL.
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Tokunaga, Y., Kotegawa, H., Ishida, K. et al. Carrier distribution and superconductivity in multilayer high-T c cuprates proved by 63Cu NMR. Journal of Low Temperature Physics 117, 473–477 (1999). https://doi.org/10.1023/A:1022506725017
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DOI: https://doi.org/10.1023/A:1022506725017