Resonating-Valence-Bond Ground-state of CaV${}_4$O${}_9$ by the Gutzwiller-projected Schwinger-boson method

T. Miyazaki, D. Yoshioka

An antiferromagnetic Heisenberg model on a 1/5-depleted two-dimensional square-lattice, a model of CaV${}_4$O${}_9$, is investigated by variational Monte Carlo simulation. A prototype…