Tuning the Heavy Fermion State of CeFeGe_3 by Ru Doping

We successfully synthesize a series of polycrystalline CeRu_xFe_(1-x)Ce_3(0≤x≤0.5)samples,which are characterized using powder x-ray diffraction,resistivity and specific heat measurements.The expansion of the lattice constants with increasing x demonstrates the successful doping of Ru into the CeFeGe_3 lattice.Upon doping,it is found that the temperature up to which Landau-Fermi liquid behavior is observed in the resistivity is reduced.Meanwhile,there is also a pronounced increase in the resistivity coefficient and residual resistivity,as well as a clear upturn in C/T at low temperatures,suggesting that Ru doping may tune the system towards a quantum critical point.     

一类Schrodinger方程解的 Holder连续性

本文证明了 Schrodinger方程 Lu≡ Au+ b 5 u + Vu = 0的弱解的 Holder连续性 ,其中 A为二阶散度型一致椭圆算子,|b|2,V ∈ L1,λ(n - 2 < λ< n) ,从而推广了已有的结果.