| We study the effect of diluted nonmagnetic impurities placed in a spin-gapped magnet using an effective low energy disordered Heisenberg model for the impurity-induced spins. Our Monte Carlo simulations show the emergence of either commensurate or incommensurate magnetic order depending on the properties of the homogeneous system. A comparison with recent experiments in the underdoped high-temperature superconductor YBa2Cu3O6.6 is also provided. |
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