Magnetic excitations of the Cu2+ quantum spin chain in Sr3CuPtO6

Cited 0 time in webofscience Cited 0 time in scopus
61 Viewed 15 Downloaded
Title
Magnetic excitations of the Cu2+ quantum spin chain in Sr3CuPtO6
Author(s)
Jonathan C Leiner; Joosung Oh; Kolesnikov A.I.; Stone M.B.; Le M.D.; Kenny E.P.; Powell B.J.; Mourigal M.; Gordon E.E.; Whangbo M.-H.; Kim J.-W.; Cheong S.-W.; Je-Geun Park
Publication Date
2018-03
Journal
PHYSICAL REVIEW B, v.97, no.10, pp.104426 -
Publisher
AMER PHYSICAL SOC
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. © 2018 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/4611
ISSN
2469-9950
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
Files in This Item:
2018-245_Magnetic Excitations of the Cu2+ Quantum Spin Chain in Sr3CuPtO6.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse