EFFECT OF OXYGEN STOICHIOMETRY IN CUO

被引：10

作者：

GUPTA, A

SHAH, P

机构：

[1] School of Physics, Devi Ahilya University

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.50.13706

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of varying oxygen stoichiometry on the spin dynamics and electronic state of a transition-metal ion in doped57 CuO has been studied. Oxygen deficiency results in an increase in the spin-lattice relaxation rate. The charge state of the iron shifts towards the Fe2+ state with increasing oxygen deficiency. The change in the charge state may be attributed to a dependence of charge-transfer energy and/or the transfer integral on oxygen vacancies. The present studies demonstrate some similarities in the behavior of CuO with that of high-temperature superconductors with respect to the effect of oxygen stoichiometry. © 1994 The American Physical Society.

引用

页码：13706 / 13709

页数：4

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