Genesis of the anomalous Hall effect in CeAl2

Anomalous charge transport in CeB6

“…2b, the effective mass drastically increases to the maximum value m eff (5 K) ¼ 440m 0 (t(5 K)E1.5 Â 10 À12 s) when lowering the temperature in the interval T ¼ 52300 K. Besides, it was found that the effective mass follows to power law m eff $T À0.8 in the whole temperature interval I b (Fig. 2b) that does not seem to be explained in terms of Kondo-lattice model [10,15].…”

“…2a) which corresponds to Hall mobility for system with one type of charge carriers, allowed us to conclude evidently about qualitative changes of the scattering of charge carriers in CeB 6 at T * $80 K. When decreasing temperature in the interval 5 KoToT * $80 K, the parameter m H ðTÞ decreases also approximately by a factor of 3. For Ce-based dense Kondo systems, the situation is just opposite, i.e., m H ðTÞ should rise with decreasing the temperature (see, e.g., [10,15]). Moreover, the temperature dependence of quasielastic-scattering linewidth G [19] has been used to estimate the relaxation time t ¼ 2_=G and the effective mass m eff ¼ et=m of charge carriers from our data.…”

“…The synthesis technique of the CeB 6 and the characteristic properties of the samples under investigation are described in [14]. The high precision measurements of rðTÞ, R H ðTÞ, and SðTÞ have been performed in the temperature range of 1.8-300 K using the experimental setups described in [15,16]. Fig.…”

Magnetoresistance and magnetization anomalies in CeB6

“…The measurements of Dr(T,H) were performed in transverse geometry (I?H) using the dc four-probe technique. Two-channel nanovoltmeters Keithley 2182 included to the experimental setup similar to that one described in [13] were used for precision measurements of nanovolt level voltage from potential contacts to the sample. The required temperature stabilization accuracy (about 0.01 K) of the measuring cell with the sample was achieved with the help of the original domestic temperature controller based on digital signal processors and standard resistance thermometer CERNOX 1050.…”

Charge Transport and Magnetism in Eu1-xCaxB6

“…The experimental setup for resistivity and Hall effect is described in Ref. [8]. Quantum Design PPMS-9 and MPMS-5 systems were used to measure specific heat and magnetization.…”