Selective mass enhancement close to the quantum critical point in BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$

V. Grinenko, K. Iida, F. Kurth +16

A quantum critical point (QCP) is currently being conjectured for the BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$ system at the critical value $x_{\mathrm{c}}\approx$ 0.3. In the proximity of a QCP,…