Anomalous charge-transfer in La2-beta Sr beta CuO4 and in Nd2-zCezCuO4

被引:11
|
作者
Blackstead, HA [1 ]
Dow, JD [1 ]
机构
[1] ARIZONA STATE UNIV,DEPT PHYS & ASTRON,TEMPE,AZ 85287
关键词
D O I
10.1063/1.360426
中图分类号
O59 [应用物理学];
学科分类号
摘要
The hypothesis of charge-transfer to the cuprate-planes, which lies at the foundation for most theories on high-temperature superconductivity, is re-examined in light of recent neutron-diffraction data for La2-betaSrbetaCuO4 and Nd2-zCezCuO4. The data indicate that the cuprate-planes do not acquire holes as the materials become superconducting, and that the superconducting p-type regions of the unit cells are in the noncuprate-plane charge-reservoir layers instead. (C) 1995 American Institute of Physics.
引用
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页码:7175 / 7180
页数:6
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