Spin density wave behaviour in the (Cr98.4Al1.6)100-y Mo y and (Cr100-x Al x )95Mo5 alloy series
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2017
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Abstract
Neutron diffraction studies of the spin-density-wave (SDW) behaviour in
antiferromagnetic (Cr98.4Al1.6)100-yMoy with y = 0, 3.7 and 4.2, as well as (Cr100-xAlx)95Mo5 with
x = 0 and 4.6 alloy systems are reported. The results confirm an incommensurate (I) SDW to
paramagnetic (P) phase transition at the quantum critical point of the (Cr98.4Al1.6)100-yMoy
series. In addition two further quantum critical magnetic phase transitions are proposed for the
(Cr100-xAlx)95Mo5 series, one from ISDW to P and the other from P to commensurate (C) SDW.
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B Muchono et al 2017 J. Phys.: Conf. Ser. 903 012028