ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Stage 2 CocMn1−cCl2-graphite intercalation compounds (0≤c≤1) approximate two-dimensional site-random XY spin systems with a competition between ferromagnetic [J(Co–Co) and J(Co–Mn)], and antiferromagnetic exchange interactions [J(Mn–Mn)]. The magnetic phase diagram and critical behavior of these compounds are studied by means of ac and dc magnetic susceptibility. For c≥ (R18)0.45 the phase transition occurs between the paramagnetic phase and the ferromagnetic phase. The critical exponents of γ and β do not change with dilution of Mn atoms: γ=2.31 and β=0.085 for c=0.90.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.350058
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