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arXiv · 1712.00652

Magnetic susceptibility of optimally doped HgBa$_{2}$CuO$_{4+δ}$

Y. Itoh·T. Machi·A. Yamamoto
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Abstract

The magnitude of the powder spin susceptibility of an optimally doped superconductor HgBa$_2$CuO$_{4+δ}$ (Hg1201) in the normal state is found to be nearly the same as that of La$_{2-x}$Sr$_{x}$CuO$_{4}$ near the optimally doped level. The Stoner enhancement factor of Hg1201 is larger than that of La$_{2-x}$Sr$_{x}$CuO$_{4}$. The magnitude correlation of the Stoner enhancement factor is inconsistent with the effect of the recent theoretical Coulomb repulsion between 3$d$ electrons and that of the superexchange intereraction of a charge transfer type.

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Y. Itoh, T. Machi, A. Yamamoto. 2017-12-02. Magnetic susceptibility of optimally doped HgBa$_{2}$CuO$_{4+δ}$. https://doi.org/10.1103/physrevb.96.235118

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