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Spin-Orbit Coupling Controlled J=3/2 Electronic Ground State in 5d3 Oxides

Journal Article · · Physical Review Letters
Entanglement of spin and orbital degrees of freedom drives the formation of novel quantum and topological physical states. Here we report resonant inelastic x-ray scattering measurements of the transition metal oxides Ca3LiOsO6 and Ba2YOsO6, which reveals a dramatic spitting of the t2g manifold. We invoke an intermediate coupling approach that incorporates both spin-orbit coupling and electron-electron interactions on an even footing and reveal that the ground state of 5d3-based compounds, which has remained elusive in previously applied models, is a novel spin-orbit entangled J=3/2 electronic ground state. This work reveals the hidden diversity of spin-orbit controlled ground states in 5d systems and introduces a new arena in the search for spin-orbit controlled phases of matter.
Research Organization:
Argonne National Laboratory (ANL)
Sponsoring Organization:
USDOE Office of Science - Office of Basic Energy Sciences; National Science Foundation (NSF) - Directorate for Engineering - Center for Emergent Materials (CEM); Japan Society for the Promotion of Science (JSPS)
DOE Contract Number:
AC02-06CH11357
OSTI ID:
1389049
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 118; ISSN 0031-9007; ISSN PRLTAO
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

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Cited By (9)

Spin-orbit coupling induced magnetic anisotropy and large spin wave gap in NaOsO 3 journal November 2018
Spin and orbital excitations through the metal-to-insulator transition in Cd 2 Os 2 O 7 probed with high-resolution resonant inelastic x-ray scattering journal January 2020
Ground state in the novel dimer iridate B a 13 I r 6 O 30 with I r 6 + ( 5 d 3 ) ions journal August 2019
Spin-orbit coupled systems in the atomic limit: rhenates, osmates, iridates journal June 2018
Origin of magnetic excitation gap in double perovskite Sr 2 FeOsO 6 journal December 2018
Hybridized orbital states in spin-orbit coupled 3 d − 5 d double perovskites studied by x-ray absorption spectroscopy journal March 2018
Spin-orbit coupled systems in the "atomic" limit: rhenates, osmates, iridates text January 2018
Octupolar order in d-orbital Mott insulators text January 2019
Octupolar order in d -orbital Mott insulators journal February 2020

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