Evidence for Electron-Electron Correlations in Pure and Sr-Doped La2CuO4
- 1 January 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (S3-2)
- https://doi.org/10.7567/jjaps.26s3.1143
Abstract
SQUID susceptibility measurements on La2CuO4 and La2-xSrxCuO4 provide evidence for electron-electron correlations. Our data suggest that La2CuO4 has a spin-density wave (or antiferromagnetic) transition near 250 K. The Sr doped superconductors have a Pauli susceptibility in the normal state that is enhanced by electron-electron correlations. The variation in the superconducting Tc with Sr doping is not directly correlated with the change in electron density of states.Keywords
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