158 citations · 487 across the 9 of their papers we have counts for
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cond-mat.str-el2011★ 31 cited
Zero and finite temperature mean field study of magnetic field induced electric polarization in Ba2CoGe2O7
Judit Romhanyi, Miklos Lajko, Karlo Penc
We investigate the spin-induced polarization in the multiferroic compound Ba2CuGe2O7 using variarional and finite temperature mean field approaches. The compound is described by a…
cond-mat.str-el2011★ 19 cited
Supersolid phase and magnetization plateaus observed in anisotropic spin-3/2 Heisenberg model on bipartite lattices
Judit Romhanyi, Frank Pollmann, Karlo Penc
We study the spin-3/2 Heisenberg model including easy-plane and exchange anisotropies in one and two dimensions. In the Ising limit, when the off-diagonal exchange interaction J is…