The phase diagram of a frustrated Heisenberg model: from disorder to order and back again

Michel M. J. Miranda, Igor C. Almeida, Eric C. Andrade +1

We study the effects of bond and site disorder in the classical $J_1$-$J_2$ Heisenberg model on a square lattice in the order-by-disorder frustrated regime $2J_{2}>\left|J_{1}\…