  Due to the similarity to BaFe2As2 and SrFe2As2 the RFe2Si2 (R=La, Y and Lu)
system has been proposed as a potential candidate for a new superconducting
family containing Fe-Si layers as a structural unit. Various R(Fe1-xMx)2Si2
M=Ni, Mn and Cu) materials were synthesized and measured for their magnetic
properties. None of these materials is superconducting down to 5 K. Fe in
RFe2Si2 is paramagnetic. A pronounced peak at 232 K was observed in the
magnetization curve of YFe2Si2. 57Fe M\"ossbauer studies confirm the absence of
any magnetic ordering at low temperatures. Similar peaks at various
temperatures also appear in R(Fe1-xMx)2Si2 samples. Four independent factors
affect the peak position and shift it to lower temperatures: (i) the lattice
parameters, (ii) the concentration of x, (iii) the applied magnetic field, and
(iv) the magnetic nature of M. The peak position is dramatically affected by
the magnetic Mn dopants. It is propose that the magnetic peaks observed in
RFe2Si2 and in R(Fe1-xMx)2Si2 represent a new nearly ferromagnetic Fermi liquid
(NFFL) system and their nature is yet to be determined.
