Magnetic properties, Mössbauer effect and first principle calculations study of laves phase HfFe2

Cross over between ferro and antiferromagnetic order in Fe itinerant electron magnetism: An experimental and theoretical study of the model (Hf,Ta)Fe 2 Laves phases

“…The calculated values of the total magnetic moment are in good agreement with the experimental magnetization obtained for HfFe 2 compound [18,41] and with the previous calculations [26,41]. The magnetic moment per formula unit for HfFe 2 system was deduced from the spontaneous magnetization at low temperature, and was found to be 3.12 l B /f.u.…”

“…The magnetic moment per formula unit for HfFe 2 system was deduced from the spontaneous magnetization at low temperature, and was found to be 3.12 l B /f.u. [41]. Asano et al obtained 1.57 l B for Fe2a and 1.67 l B for Fe6h [26].…”

Low temperature high magnetic field57Fe Mössbauer study of kinetic arrest in Ta doped HfFe2

“…It is the B IN T , which changes drastically across the FM-AFM transition and hence only this parameter including the linewidth (FWHM), area fraction of different magnetic phases, and area ratio of second and third line intensity (A 23 ) are shown in the obtained hyperfine parameters as shown in table-1. It is to be noted that the estimated area fraction of Fe in 6h and 2a sites is always in the ratio of 3:1, which is consistent with the crystallographic data on these compounds [1][2][3][4]. The A 23 parameter of the sextet was observed to be close to two which is expected.…”

First-principles study of electronic structure for the Laves-phase compounds HfFe2 and HfV2

“…This can be seen by noting from Table 1 that MT charges are Q V d = 2.8529 and Q Fe d = 5.9816, respectively, realizing that Q Fe d exceed Q V d by more than the three extra electrons in Fe compared to V, which is consistent with DOS above. Belosevic-Cavor [8] investigated the spin-polarized electronic structure of HfFe 2 compound with LMTO method. The results showed that the spin-polarized total charges are nearly equal to total MT charges we calculated in LAPW method.…”

“…They also observed the temperature dependence of the magnetization. Belosevic-Cavor [8] and Yamada and Shimizu [7] investigated the relation of electronic structure and magnetic properties of HfFe 2 compound. The pseudobinary system (Hf, Zr)V 2 have been investigated as superconducting materials [9,10].…”