Impurity-induced frustration in correlated oxides

Abstract

Using the example of Zn-doped La2CuO4, we demonstrate that a spinless impurity doped into a non-frustrated antiferromagnet can induce substantial frustrating interactions among the spins surrounding it. This counterintuitive result is the key to resolving discrepancies between experimental data and earlier theories. Analytic and quantum Monte Carlo studies of the impurity-induced frustration are in a close accord with each other and experiments. The mechanism proposed here should be common to other correlated oxides as well.

4 pages, updated figures, accepted version

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Cited by in corpus (13)

• Bridging lattice-scale physics and continuum field theory with quantum Monte Carlo simulations
• The magnetic states of lightly hole-doped cuprates in the clean limit
• Antiferromagnetism of Zn${}_2$VO(PO${}_4{)}_2$ and the dilution with Ti${}^{4+}$
• Extreme Suppression of Antiferromagnetic Order and Critical Scaling in a Two-Dimensional Random Quantum Magnet
• Square-lattice magnetism of diaboleite Pb2Cu(OH)4Cl2
• Evidence for impurity-induced frustration in La2CuO4
• Site Dilution in the Half-Filled One-Band Hubbard Model: Ring Exchange, Charge Fluctuations and Application to La2Cu_{1-x}(Mg/Zn)_xO4
• Criticality and Mott-glass phase in a disordered 2D quantum spin systems
• Nonmagnetic impurity perturbation to the quasi-two-dimensional quantum helimagnet LiCu2O2
• Antiferromagnetism beyond classical percolation threshold in the site-diluted half-filled one-band Hubbard model in three dimensions
• Impurity-induced frustration: low-energy model of diluted oxides
• Kernel Polynomial Method for Linear Spin Wave Theory
• Effects of edge disorder in nano-scale antiferromagnetic clusters