  Electrical transport measurements of the heavy fermion compound YbFe2Zn20
were carried out under pressures up to 8.23 GPa and down to temperatures of
nearly 0.3 K. The pressure dependence of the low temperature Fermi-liquid state
was assessed by fitting rho(T) = rho_0 + AT^n with n = 2 for T < T_FL. Power
law analysis of the low temperature resistivities indicates n = 2 over a broad
temperature range for P < 5 GPa. However, at higher pressures, the quadratic
temperature dependence is only seen at the very lowest temperatures, and
instead shows a wider range of n < 2 power law behavior in the low temperature
resistivities. As pressure was increased, T_FL diminished from ~11 K at ambient
pressure to ~0.6 K at 8.23 GPa. Over the same pressure range, the A parameter
increased dramatically with a functional form of A proportional to (P-Pc)^-2
with Pc~9.8GPa being the critical pressure for a possible quantum critical
point.
