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Title: Multi-spinon and antiholon excitations probed by resonant inelastic x-ray scattering on doped one-dimensional antiferromagnets

Abstract

Resonant inelastic x-ray scattering (RIXS) at the oxygen K-edge has recently accessed multi-spinon excitations in the one-dimensional antiferromagnet (1D-AFM) Sr2CuO3, where four-spinon excitations are resolved separately from the two-spinon continuum. This technique, therefore, provides new opportunities to study fractionalized quasiparticle excitations in doped 1D-AFMs. To this end, we carried out exact diagonalization studies of the doped t–J model and provided predictions for oxygen K-edge RIXS experiments on doped 1D-AFMs. We show that the RIXS spectra are rich, containing distinct two- and four-spinon excitations, dispersive antiholon excitations, and combinations thereof. Our conclusions draw attention to how RIXS complements inelastic neutron scattering experiments by accessing additional charge and spin components of fractionalized quasiparticles.

Authors:
ORCiD logo; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
OSTI Identifier:
1459727
Alternate Identifier(s):
OSTI ID: 1546550
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Published Article
Journal Name:
New Journal of Physics
Additional Journal Information:
Journal Name: New Journal of Physics Journal Volume: 20 Journal Issue: 7; Journal ID: ISSN 1367-2630
Publisher:
IOP Publishing
Country of Publication:
United Kingdom
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; holon; spinon; antiferromagnetism; 1D strongly correlated systems

Citation Formats

Kumar, Umesh, Nocera, Alberto, Dagotto, Elbio, and Johnston, Steve. Multi-spinon and antiholon excitations probed by resonant inelastic x-ray scattering on doped one-dimensional antiferromagnets. United Kingdom: N. p., 2018. Web. doi:10.1088/1367-2630/aad00a.
Kumar, Umesh, Nocera, Alberto, Dagotto, Elbio, & Johnston, Steve. Multi-spinon and antiholon excitations probed by resonant inelastic x-ray scattering on doped one-dimensional antiferromagnets. United Kingdom. doi:10.1088/1367-2630/aad00a.
Kumar, Umesh, Nocera, Alberto, Dagotto, Elbio, and Johnston, Steve. Sun . "Multi-spinon and antiholon excitations probed by resonant inelastic x-ray scattering on doped one-dimensional antiferromagnets". United Kingdom. doi:10.1088/1367-2630/aad00a.
@article{osti_1459727,
title = {Multi-spinon and antiholon excitations probed by resonant inelastic x-ray scattering on doped one-dimensional antiferromagnets},
author = {Kumar, Umesh and Nocera, Alberto and Dagotto, Elbio and Johnston, Steve},
abstractNote = {Resonant inelastic x-ray scattering (RIXS) at the oxygen K-edge has recently accessed multi-spinon excitations in the one-dimensional antiferromagnet (1D-AFM) Sr2CuO3, where four-spinon excitations are resolved separately from the two-spinon continuum. This technique, therefore, provides new opportunities to study fractionalized quasiparticle excitations in doped 1D-AFMs. To this end, we carried out exact diagonalization studies of the doped t–J model and provided predictions for oxygen K-edge RIXS experiments on doped 1D-AFMs. We show that the RIXS spectra are rich, containing distinct two- and four-spinon excitations, dispersive antiholon excitations, and combinations thereof. Our conclusions draw attention to how RIXS complements inelastic neutron scattering experiments by accessing additional charge and spin components of fractionalized quasiparticles.},
doi = {10.1088/1367-2630/aad00a},
journal = {New Journal of Physics},
number = 7,
volume = 20,
place = {United Kingdom},
year = {2018},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1088/1367-2630/aad00a

Citation Metrics:
Cited by: 4 works
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    Works referencing / citing this record:

    Computing Resonant Inelastic X-Ray Scattering Spectra Using The Density Matrix Renormalization Group Method
    journal, July 2018