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Calculations of the electronic and magnetic properties of the non-magneticmetallic compound YFe$_2$Si$_2$ are reported. These show that at the densityfunctional level a magnetic state involving ordering along the $c$-axis. Theelectronic structure is three dimensional, and is similar to that of theunconventional superconductor YFe$_2$Ge$_2$ and as well as that of the highpressure collapsed tetragonal phase of KFe$_2$As$_2$, which is also asuperconductor. Based on the results in relation to experiment, we infer thatproperties of YFe$_2$Si$_2$ are strongly influenced by a nearbyantiferromagnetic quantum critical point.

Evidence for proximity of YFe$_2$Si$_2$ to a magnetic quantum critical point