摘要
We report an investigation on the single crystal growth,magnetic and transport properties of Eu In_(2)(As_(1-x)P_(x))_(2(0≤x≤1).The physical properties of axion insulator candidate Eu In;As;can be effectively tuned by P-doping.With increasing x,the c-axis lattice parameter decreases linearly,the magnetic transition temperature gradually increases and ferromagnetic interactions are enhanced.This is similar to the previously reported high pressure effect on Eu In_(2)As_(2).For x=0.40,a spin glass state at T_(g)=10 K emerges together with the observations of a butter-fly shaped magnetic hysteresis and slow magnetic behavior.Besides,magnetic transition has great influence on the charge carriers in this system and negative colossal magnetoresistance is observed for all P-doped samples.Our findings suggest that Eu In_(2)(As_(1-x)P_(x))_(2) is a promising material playground for exploring novel topological states.
基金
supported by the National Natural Science Foundation of China(Grant Nos.12074426,11227906and U2030106)
the Fundamental Research Funds for the Central Universities,the Research Funds of Renmin University of China(Grant No.20XNLG19)。
