Hall effect in LaB_6 and NdB_6

摘要

To shed more light on the peculiarities of ground state formation in RB_6 Hall effect in NdE$6 and LaB_6 has been investigated on the single crystals at temperatures 2K for LaB_6 and <100> for NdB_6). A very similar temperature behavior of R_H(T) with the step-like anomaly near T ～ 25K has been established for both magnetic NdB_6 and diamagnetic LaB_6 at intermediate temperatures T>10K. The temperature independent behaviour of Hall coefficient (R_H(LaB_6) ～ -3.6·10~(-4) cm~3/C, R_H(NdB_6) ～ -3.7·10~(-4) cm~3/C) observed in the interval 10K