Phys. Rev. B 65, 094418 (2002) [6 pages]From classical to quantum Kagomé antiferromagnet in a magnetic fieldReceived 22 August 2001; published 13 February 2002 We study the magnetic properties of the Kagomé antiferromagnet going from the classical limit to the deep quantum regime of spin 1/2 systems. In all the cases there are special values for the magnetization, 1/3 in particular, in which a singular behavior is observed to occur in both the classical and quantum cases. We show clear evidence for a magnetization plateau for all S, in a wide range of XXZ anisotropies and for the occurrence of quantum order by disorder effects. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.65.094418
DOI:
10.1103/PhysRevB.65.094418
PACS:
75.10.Jm, 75.10.Nr, 75.60.Ej
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