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Local Magnetic Susceptibility of the Positive Muon in the Quasi 1D S=1/2 Antiferromagnet dichlorobis (pyridine) copper (II)

J. A. Chakhalian·R. F. Kiefl·R. Miller·J. Brewer·S. R. Dunsiger·G. Morris·W. A. MacFarlane·J. E. Sonier·S. Eggert·I. Affleck·A. Keren·M. Verdaguer
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Abstract

We report muon spin rotation measurements of the local magnetic susceptibility around a positive muon in the paramagnetic state of the quasi one-dimensional spin 1/2 antiferromagnet dichlorobis (pyridine) copper (II). Signals from three distinct sites are resolved and have a temperature dependent frequency shift which is significantly different than the magnetic susceptibility. This difference is attributed to a muon induced perturbation of the spin 1/2 chain. The obtained frequency shifts are compared with Transfer Matrix DMRG numerical simulations.

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J. A. Chakhalian, R. F. Kiefl, R. Miller, J. Brewer, S. R. Dunsiger, G. Morris, W. A. MacFarlane, J. E. Sonier, S. Eggert, I. Affleck, A. Keren, M. Verdaguer. 2003-02-04. Local Magnetic Susceptibility of the Positive Muon in the Quasi 1D S=1/2 Antiferromagnet dichlorobis (pyridine) copper (II). https://doi.org/10.1103/physrevlett.91.027202

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