Hole Doping Effect on 2D Spin Correlations in La2NiO4+δ
- 15 March 1995
- journal article
- letter
- Published by Physical Society of Japan in Journal of the Physics Society Japan
- Vol. 64 (3) , 716-720
- https://doi.org/10.1143/jpsj.64.716
Abstract
Quasielastic neutron scattering experiments from La 2 NiO 4+δ revealed a substantial hole doping effect on the 2 dimensional spin correlations. Thermal evolution of correlation length clearly shows the reduction of the exchange stiffness constant by hole doping, which is in marked contrast to that of La 2 CuO 4+δ . The present result is reflected by the hole character in La 2 NiO 4+δ , which is different from that in the cuprate.Keywords
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