@article{504726c0928643988fa927134fa6cb90,
title = "Magnetic excitations of the Cu2+ quantum spin chain in Sr3CuPtO6",
abstract = "We report the magnetic excitation spectrum as measured by inelastic neutron scattering for a polycrystalline sample of Sr3CuPtO6. Modeling the data by the 2+4 spinon contributions to the dynamical susceptibility within the chains, and with interchain coupling treated in the random phase approximation, accounts for the major features of the powder-averaged structure factor. The magnetic excitations broaden considerably as temperature is raised, persisting up to above 100 K and displaying a broad transition as previously seen in the susceptibility data. No spin gap is observed in the dispersive spin excitations at low momentum transfer, which is consistent with the gapless spinon continuum expected from the coordinate Bethe ansatz. However, the temperature dependence of the excitation spectrum gives evidence of some very weak interchain coupling.",
author = "Leiner, {J. C.} and Joosung Oh and Kolesnikov, {A. I.} and Stone, {M. B.} and Le, {Manh Duc} and Kenny, {E. P.} and Powell, {B. J.} and M. Mourigal and Gordon, {E. E.} and Whangbo, {M. H.} and Kim, {J. W.} and Cheong, {S. W.} and Park, {Je Geun}",
note = "Funding Information: We are grateful to J.-S. Caux for providing the spinon dynamical structure factor data. We also wish to thank D.T. Adroja and T. Saha-Dasgupta for helpful discussions. Work at the IBS (Institute for Basic Science) CCES (Center for Correlated Electron Systems) (South Korea) was supported by the research program of the Institute for Basic Science (IBS-R009-G1). Work at Rutgers University was supported by the DOE under Grant No. DOE: DE-FG02-07ER46382. Work at the University of Queensland was supported by the Australian Research Council through Grants No. FT130100161 and No. DP160100060. This research used resources at the Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory (ORNL). Publisher Copyright: {\textcopyright} 2018 American Physical Society.",
year = "2018",
month = mar,
day = "30",
doi = "10.1103/PhysRevB.97.104426",
language = "English (US)",
volume = "97",
journal = "Physical Review B-Condensed Matter",
issn = "0163-1829",
publisher = "American Institute of Physics",
number = "10",
}