Physical properties and field-induced metamagnetic transitions in UAu0.8 Sb2

Scientific Reports
Wen ZhangXinchun Lai

Abstract

We have successfully synthesized single crystals of UAu0.8Sb2 using a flux method and present a comprehensive study of its physical properties by measuring the magnetic susceptibility, electrical resistivity and specific heat. Evidence for at least three magnetic phases is observed in the field-temperature phase diagram of UAu0.8Sb2. In zero field, the system undergoes an antiferromagnetic transition at 71 K, and upon further cooling it passes through another antiferromagnetic phase with a ferromagnetic component, before reaching a ferromagnetic ground state. A complex magnetic field-temperature phase diagram is obtained for fields along the easy c-axis, where the antiferromagnetic order eventually becomes polarized upon applying a magnetic field.

References

Dec 9, 1985·Physical Review Letters·T T PalstraJ A Mydosh
Jan 13, 1986·Physical Review Letters·M B MapleJ D Thompson
Apr 6, 1987·Physical Review Letters·C BroholmJ A Mydosh
Feb 15, 1988·Physical Review Letters·G AeppliJ Hufnagl
Oct 13, 2007·Physical Review Letters·N T HuyH V Löhneysen

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BETA
x-ray diffraction
neutron diffraction
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AFM

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