title: Local magnetic susceptibility of the positive muon in the quasi-one-dimensional S=1/2 antiferromagnet dichlorobis (pyridine) copper (II).
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 density-matrix renormalization-group numerical simulations.
authors.affiliation: Department of Physics and Astronomy, UBC, Vancouver, BC, Canada V6T 1Z1.
authors.forename: J A
authors.initials: JA
authors.lastname: Chakhalian
authors.forename: R F
authors.initials: RF
authors.lastname: Kiefl
authors.forename: R
authors.initials: R
authors.lastname: Miller
authors.forename: J
authors.initials: J
authors.lastname: Brewer
authors.forename: S R
authors.initials: SR
authors.lastname: Dunsiger
authors.forename: G
authors.initials: G
authors.lastname: Morris
authors.forename: W A
authors.initials: WA
authors.lastname: MacFarlane
authors.forename: J E
authors.initials: JE
authors.lastname: Sonier
authors.forename: S
authors.initials: S
authors.lastname: Eggert
authors.forename: I
authors.initials: I
authors.lastname: Affleck
authors.forename: A
authors.initials: A
authors.lastname: Keren
authors.forename: M
authors.initials: M
authors.lastname: Verdaguer