Metamagnetic transitions and giant magnetoresistance in UNiGe

Abstract

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Radio-frequency measurements of UNiX compounds (X=Al, Ga, Ge) in high magnetic fields

“…The B-T phase diagrams contain our results and the previously published results from bulk magnetic and neutron diffraction studies [38]. Overall, the phase boundaries are in reasonable agreement with the previous reported phase boundaries [38,41]. However, for B II b-axis, we observed a potential new phase (marked by'?…”

Ferromagnetism in UCoGe stabilized by transition metal doping

“…This may be connected with the fact that UNiGe and generally the UNiX compounds are antiferromagnetic materials. 11,12 In UCoGe the calculated U spin magnetic moments along c-axis of 1.2 B is compensated by an oppositely oriented orbital magnetic moment of 1.1 B . 13 Therefore, the total magnetic moment of uranium is very small, about 0.1 B .…”

Commensurate and incommensurate magnetic structures of UNiGe

“…Between 41.5 and 51 K UNiGe is incommensurate 9,10 with qϭ͑0,␦,␦͒, but the detailed geometrical arrangement of the moments has not been discussed previously. The essential features of the B-T phase diagram 10,11 are shown in Fig. 3, and we note that a further qϭ͑0,1/3,1/3͒ commensurate phase can be induced in applied magnetic fields.…”