Effect of Zn and Ni substitution on TN and Tc of copper oxides

Sergei G. Ovchinnikov

doi:10.1117/12.250234

5 July 1996 Effect of Zn and Ni substitution on T_N and T_c of copper oxides

Sergei G. Ovchinnikov

Proceedings Volume 2697, Oxide Superconductor Physics and Nano-Engineering II; (1996) https://doi.org/10.1117/12.250234
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

It's shown in the framework ofthe multiband p-d model that formal Ni2 ion state is not a S1 d8 ion but is a mixture of d9 5=1/2 and d'° 5=0 configurations. High spin contribution is eliminated by strong electron correlations. We assume that for both Zn and Ni substitution the concentration dependence of TN and T is determined by the diamagnetic contribution to the impurity state and this assumption is in a good agreement with experimental data on 1 :2:3 and 2: 1 :4 systems.

Citation Download Citation

Sergei G. Ovchinnikov "Effect of Zn and Ni substitution on T_N and T_c of copper oxides", Proc. SPIE 2697, Oxide Superconductor Physics and Nano-Engineering II, (5 July 1996); https://doi.org/10.1117/12.250234

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