About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
Physical Review B
Paper
Effects of Ni-to-Cu substitution on the properties of the high-Tcsuperconductor La1.85Sr0.15CuO4-y
Abstract
We report experimental data about the influence of Ni substitution on the properties of the high-Tc superconductor La1.85Sr0.15Cu1-xNixO4-y, 0≤x≤0.05. Superconductivity is totally suppressed above x=0.04 and the Curie law observed at x=0.05 reveals an effective magnetic moment of 0.7μB instead of 3 μB as for spin (1/2. This result is explained by the existence of a singly &) level. Possibilities for non-s-wave superconductivity are also discussed in conjunction with our experimental data. © 1988 The American Physical Society.
