Electron-hole asymmetry in magnetic properties of lightly doped high-$T_{\mathrm{C}}$ superconductors: a quantum Monte Carlo study

Abstract

Using a recently developed variational quantum Monte Carlo method, magnetic properties of high-$T_{\mathrm{C}}$ superconductors are studied at zero temperature ($T$), by numerical simulations on the 2D t-J model. Our focus here is to explore the difference in the properties of $p$-type and $n$-type cuprates as a function of the carrier concentrations close to half filling. As observed experimentally, it is found that the antiferromagnetically ordered phase persists even for a small, yet finite amount of carrier doping, and that this phase is more robust in the electron doped case.

arXiv comment2 pages, 2 figures

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