T Hori et al 2006 J. Phys.: Conf. Ser. 51 47 doi:10.1088/1742-6596/51/1/008
T Hori1, K Koyama2, H Shiraishi1 and K Watanabe2
Show affiliationsWe have conducted low- and high-field magnetization measurements and neutron diffraction experiments on NdxEr1−xMn6Sn6 alloys (0 ≤ x ≤ 0.5) with hexagonal MgFe6Ge6 type structure. The alloy with x = 0.1 shows a complex helical antiferromagnetism with the magnetic moments rotating in the c plane below the Curie temperature TC = 340 K, and a ferrimagnetism below the temperature Tt = 100 K. In the ferrimagnetic state, the magnetic moments μMn and μNd are parallel to each other, and antiparallel to μEr. The alloy with x = 0.4 shows also a similar ferrimagnetic structure below the Curie temperature TC = 360 K. It is likely that the each magnetic moments are keep a constant values of μMn = 2.3 μB/Mn atom, μNd = 3 μB/Nd atom and μEr = 9 μB/Nd atom at 10 K in the whole composition (0 < x ≤ 0.5). The ferrimagnetic arrangements for the alloys with 0.2 ≤ x ≤ 0.5 are not almost disturbed by magnetic field up to 26 T at 4.2 K.
75.60.Ej Magnetization curves, hysteresis, Barkhausen and related effects
75.50.-y Studies of specific magnetic materials
75.30.Kz Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.)
Issue 1 (2006)
T Hori et al 2006 J. Phys.: Conf. Ser. 51 47
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