Figure 1

(a) Comparison of data collected with PHAROS for ${\mathrm{Yb}}_2{\mathrm{Rh}}_3{\mathrm{Ga}}_9$ at 18 (circles) and 300 K (squares) with $E_i=120\mathrm{meV}$. (b) Comparison of data collected with LRMECS for ${\mathrm{Yb}}_2{\mathrm{Rh}}_3{\mathrm{Ga}}_9$ and ${\mathrm{Y}}_2{\mathrm{Rh}}_3{\mathrm{Ga}}_9$ with $E_i=120\mathrm{meV}$. The squares (circles) denote the scattering for ${\mathrm{Yb}}_2{\mathrm{Rh}}_3{\mathrm{Ga}}_9\left({\mathrm{Y}}_2{\mathrm{Rh}}_3{\mathrm{Ga}}_9\right)$ at 12 K. The solid (dashed) lines denote the scattering for ${\mathrm{Yb}}_2{\mathrm{Rh}}_3{\mathrm{Ga}}_9\left({\mathrm{Y}}_2{\mathrm{Rh}}_3{\mathrm{Ga}}_9\right)$ at 300 K. In both (a) and (b) the statistical errors bars are approximately the symbol size.Reuse & Permissions

Figure 2

Comparison of $S_{\mathrm{mag}}$ at 12 and 300 K and the magnetic susceptibility. (a) displays $S_{\mathrm{mag}}$ at 12 K with $E_i=15$ (stars), 35 (circles), 60 (squares), and 120 meV (triangles). The solid line is a Lorentzian fit and the dash-dot (dashed) line is an AIM calculation for parameter set 1 (2) as described in the text. (b) displays $S_{\mathrm{mag}}$ at 300 K with $E_i=15$ (stars), 35 (circles), and 120 (triangles) meV. The solid (dashed) lines are a Lorentzian fit (AIM calculations) with parameters as described in the text. The uppermost dashed curve corresponds to $n_f\left(0\right)=0.6$, the next lower $n_f\left(0\right)=0.5$, and the lowest $n_f\left(0\right)=0.4$. (c) displays the magnetic susceptibility for field applied along the $c$ axis (circles), field applied in the basal plane (triangles), and the polycrystalline average (squares). The stars denote the values of the static susceptibility derived from Lorentzian fits to $S_{\mathrm{mag}}$ at 12 and 300 K. The dashed (solid) lines denote AIM calculations of the static susceptibility for parameter sets 1 (2).Reuse & Permissions

Figure 3

$n_f\left(T\right)$ for ${\mathrm{Yb}}_2{\mathrm{Rh}}_3{\mathrm{Ga}}_9$ (squares) and ${\mathrm{Yb}}_2{\mathrm{Ir}}_3{\mathrm{Ga}}_9$ (triangles). Lines are AIM calculations as described in the text.Reuse & Permissions