  Muon spin rotation (mSR) measurements of the in-plane penetration depth
lambda_ab have been performed in the electron-doped infinite layer high-Tc
superconductor (HTS) Sr0.9La0.1CuO2. Absence of the magnetic rare-earth ions in
this compound allowed to measure for the first time the absolute value of
lambda_ab(0) in electron-doped HTS using mSR. We found lambda_ab(0)=116(2) nm.
The zero-temperature depolarization rate sigma(0)?1/lambda_ab(0)^2=4.6(1) MHz
is more than four times higher than expected from the Uemura line. Therefore
this electron-doped HTS does not follow the Uemura relation found for
hole-doped HTS.
