de Haas-van Alphen effect and the Fermi surface of LaB6

Fermi surface properties of low-concentrationCexLa1−xBTeklu1, Goodrich2, Harrison3 et al. 2000Phys. Rev. BSelf Cite200130View full textAdd to dashboardCite

“…Figure 1 shows typical dHvA oscillations for Ce x La 1−x B 6 (x= 0.01) for θ = 0 • (i.e., the [100] direction) in the field range of 10−11 T and at a temperature of 1.4 K. A discrete Fourier transform (DFT) of the signal is shown on the same graph. For measurements on pure LaB 6 , the frequency of the minimum area or α 3 orbit is found to be 7.894 ± 0.004 kT, which is in good agreement with the original measurements of Arko et al [1]. With this as a point of reference, complete angular dependent studies of the frequencies in all of the Ce concentrations were made.…”

“…In comparison, the value of the effective mass of the α 3 orbit for x = 0 or pure LaB 6 was found to be 0.66±0.03m e compared to the results of Arko et al [1] which give 0.65m e . Thus, the two values are the same to within experimental uncertainty.…”

“…Among these materials are metallic LaB 6 [1], Kondo insulating SmB 6 [2], semi-metallic CaB 6 [3 -5], heavy Fermion (HF) CeB 6 [6], and ferromagnetic EuB 6 [7]. Extensive experimental and theoretical investigations have been done in order to understand their varying physical properties.…”

Doping-induced redistribution of magnetic spectral weight in the substituted hexaborides Ce1−xLaxB6 and Nikitin1, Portnichenko2, Dukhnenko3 et al. 2018Phys. Rev. B123160View full textAdd to dashboardCite

“…Previously we already argued that the propagation vectors of both AFM and AFQ phases in pure CeB 6 are dictated by the nesting properties of its Fermi surface [8]. In nonmagnetic LaB 6 and antiferromagnetic NdB 6 , dHvA measurements found no significant difference in the size of the Fermi surface due to a strong localization of the Nd 3+ 4 f electrons [70,71]. The stoichiometric NdB 6 has an AFM structure (phase VI) with the propagation vector q 0 = (00 1 2 ), which persists in Ce 1−x Nd x B 6 about halfway across the phase diagram (see Fig.…”

“…Investigations of the electronic structure of light rareearth hexaborides have shown that the shape of the Fermisurface, effective mass of charge carriers, and the number of conduction electrons per unit cell are very similar for both NdB 6 and LaB 6 , due to a strong localization of 4 f electrons in NdB 6 [70,71]. On the other hand, hybridization of Ce 4 f 1 electrons with the conduction band qualitatively modifies the Fermi surface of CeB 6 as compared to LaB 6 [72].…”