Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2008-12-04
Phys. Rev. Lett. 102, 167201 (2009)
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages, updated figures, accepted version
Scientific paper
10.1103/PhysRevLett.102.167201
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.
Chernyshev Alexander L.
Kao Ying-Jer
Liu Cheng-Wei
Liu Shiu
Sandvik Anders. W.
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