Magnetization plateaus in generalized Shastry-Sutherland models
Date of Issue2013
School of Physical and Mathematical Sciences
We study an anisotropic Heisenberg antiferromagnet with ferromagnetic transverse spin exchange using exact quantum Monte Carlo methods. Such a model is relevant to a class of rare earth tetraboride materials that display a range of magnetization plateaus under applied magnetic field. The layered arrangement of magnetic ions in these materials is topologically equivalent to the Shastry-Sutherland lattice. In this frustrated geometry, we study the interplay of next-nearest neighbor interactions in stabilizing a plateau at half the saturation magnetization (or 1/2 plateau). We also show hysteresis-like behavior at the onset of the 1/3 plateau.
DRNTU::Science::Physics::Geophysics and geomagnetism
Journal of the Korean physical society
© 2013 Springer. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of the Korean Physical Society, Springer. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.3938/jkps.63.486].