摘要
We successfully synthesize a series of polycrystalline CeRuxFe1-xCe3（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 CeFeGe3 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.
We successfully synthesize a series of polycrystalline CeRuxFe1-xCe3（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 CeFeGe3 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.
作者
夏心贝
沈斌
Michael Smidman
陈晔
Hanoh Lee
袁辉球
Xin-Bei Xia;Bin Shen;Michael Smidman;Ye Chen;Hanoh Lee;Hui-Qiu Yuan(Center for Correlated Matter and Department of Physics,Zhejiang University,HanKzhou 310058;Department of Physics,Sungkyunkwan University,Suwon 440-746,South Korea 3Collaborative Innovation Center of Advanced Microstructures,Nanjing 210093)
基金
Supported by the National Natural Science Foundation of China under Grant Nos 11474251,11604291 and U1632275
the National Key Research and Development Program of China under Grant Nos 2017YFA0303100 and 2016YFA0300202
the Science Challenge Project of China under Grant No TZ2016004
