title: Emergent Interacting Spin Islands in a Depleted Strong-Leg Heisenberg Ladder.
abstract: Properties of the depleted Heisenberg spin ladder material series (C_{7}H_{10}N)_{2}Cu_{1-z}Zn_{z}Br_{4} have been studied by the combination of magnetic measurements and neutron spectroscopy. Disorder-induced degrees of freedom lead to a specific magnetic response, described in terms of emergent strongly interacting "spin island" objects. The structure and dynamics of the spin islands is studied by high-resolution inelastic neutron scattering. This allows us to determine their spatial shape and to observe their mutual interactions, manifested by strong spectral in-gap contributions.
authors.affiliation: Neutron Scattering and Magnetism, Laboratory for Solid State Physics, ETH Zürich, CH-8093 Zürich, Switzerland.
authors.forename: D
authors.initials: D
authors.lastname: Schmidiger
authors.affiliation: Neutron Scattering and Magnetism, Laboratory for Solid State Physics, ETH Zürich, CH-8093 Zürich, Switzerland.
authors.forename: K Yu
authors.initials: KY
authors.lastname: Povarov
authors.affiliation: Neutron Scattering and Magnetism, Laboratory for Solid State Physics, ETH Zürich, CH-8093 Zürich, Switzerland.
authors.forename: S
authors.initials: S
authors.lastname: Galeski
authors.affiliation: Neutron Scattering and Magnetism, Laboratory for Solid State Physics, ETH Zürich, CH-8093 Zürich, Switzerland.
authors.forename: N
authors.initials: N
authors.lastname: Reynolds
authors.affiliation: ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom.
authors.forename: R
authors.initials: R
authors.lastname: Bewley
authors.affiliation: ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom.
authors.forename: T
authors.initials: T
authors.lastname: Guidi
authors.affiliation: Institut Laue-Langevin, 6 rue Jules Horowitz, 38042 Grenoble, France.
authors.forename: J
authors.initials: J
authors.lastname: Ollivier
authors.affiliation: Neutron Scattering and Magnetism, Laboratory for Solid State Physics, ETH Zürich, CH-8093 Zürich, Switzerland.
authors.forename: A
authors.initials: A
authors.lastname: Zheludev