RESISTIVITY AND HALL-EFFECT OF GDSB AND TMSB

GdSb and TmSb are typical 'model' materials in rare earth compounds. T he former is an exchange interaction only sample and the latter is a C EF only sample. In order to compare the transport properties between t he two samples, we have measured the Hall effect and resistivity of pu re GdSb and TmSb in various fields. The CEF effect and magnetic scatte ring have been observed in both resistivity and Hall effect measuremen ts for TmSb and GdSb, respectively. The mobilities of electrons and ho les as well as the carrier concentration are calculated using the expe rimental data.