Carrier distribution and superconductivity in multilayer high-Tc cuprates proved by 63Cu NMR
Carrier distribution and superconductivity in multilayer high-Tc cuprates proved by 63Cu NMR
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63Cu NMR证明多层高温铜酸盐中的载流子分布和超导性
DOI：
10.1023/a:1022506725017
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发表时间：
1999
影响因子：
2
通讯作者：
H. Ihara
中科院分区：
文献类型：
--
作者：
Y. Tokunaga;H. Kotegawa;K. Ishida;G. Zheng;Y. Kitaoka;K. Tokiwa;A. Iyo;H. Ihara
通过改变载流子浓度、δ和晶胞内CuO2晶面的数目n，用63CuKnight Shift测量了多层CuO_2晶面中不同CuO_2晶面之间的载流子分布，发现在n=3(4)中，70(60)%的总载流子被选择性地掺杂到两个CuO_2晶面中。结果表明，多层铜氧化物中载流子分布的不均匀性随δ和n的增加而增大。
The carrier distribution among the inequivalent CuO2planes in multilayer cuprates is investigated by63Cu Knight shift measurement with varying the carrier concentration, δ and the number of CuO2plane in a unit cell, n. We found that70 (60)%of total carriers are doped selectively into two outer CuO2planes in n= 3 (4). This indicates resultantly that the inhomogeneity of carrier distribution increases with increasing δ and n in multilayer cuprates.