Literature DB >> 11497913

Spin-orbit coupling in the Mott insulator Ca(2)RuO(4).

T Mizokawa1, L H Tjeng, G A Sawatzky, G Ghiringhelli, O Tjernberg, N B Brookes, H Fukazawa, S Nakatsuji, Y Maeno.   

Abstract

O 1s x-ray absorption study of the Mott insulator Ca(2)RuO(4) shows that the orbital population of the 4d t(2g) band dramatically changes with temperature. In addition, spin-resolved circularly polarized photoemission study of Ca(2)RuO(4) shows that a substantial orbital angular momentum is induced in the Ru 4d t(2g) band. Based on the experimental results and model Hartree-Fock calculations, we argue that the cooperation between the strong spin-orbit coupling in the Ru 4d t(2g) band and the small distortion of the RuO(6) octahedra causes the interesting changeover of the spin and orbital anisotropy as a function of temperature.

Entities:  

Year:  2001        PMID： 11497913     DOI： 10.1103/PhysRevLett.87.077202

Source DB:  PubMed          Journal:  Phys Rev Lett        ISSN： 0031-9007            Impact factor:   9.161


  6 in total

1.  Oxygen K-edge X-ray Absorption Spectra.

Authors:  Federica Frati; Myrtille O J Y Hunault; Frank M F de Groot
Journal:  Chem Rev       Date:  2020-04-10       Impact factor: 60.622

2.  Hallmarks of Hunds coupling in the Mott insulator Ca2RuO4.

Authors:  D Sutter; C G Fatuzzo; S Moser; M Kim; R Fittipaldi; A Vecchione; V Granata; Y Sassa; F Cossalter; G Gatti; M Grioni; H M Rønnow; N C Plumb; C E Matt; M Shi; M Hoesch; T K Kim; T-R Chang; H-T Jeng; C Jozwiak; A Bostwick; E Rotenberg; A Georges; T Neupert; J Chang
Journal:  Nat Commun       Date:  2017-05-05       Impact factor: 14.919

3.  Orbital ordering and magnetism in layered Perovskite Ruthenate Sr2RuO4.

Authors:  Hung-Lung Huang; Horng-Tay Jeng
Journal:  Sci Rep       Date:  2020-04-27       Impact factor: 4.379

4.  Guiding antiferromagnetic transitions in Ca[Formula: see text]RuO[Formula: see text].

Authors:  D G Porter; F Forte; V Granata; M Cannavacciuolo; R Fittipaldi; M Cuoco; A Bombardi; A Vecchione
Journal:  Sci Rep       Date:  2022-06-29       Impact factor: 4.996

5.  In situ strain tuning of the metal-insulator-transition of Ca2RuO4 in angle-resolved photoemission experiments.

Authors:  S Riccò; M Kim; A Tamai; S McKeown Walker; F Y Bruno; I Cucchi; E Cappelli; C Besnard; T K Kim; P Dudin; M Hoesch; M J Gutmann; A Georges; R S Perry; F Baumberger
Journal:  Nat Commun       Date:  2018-10-31       Impact factor: 14.919

Review 6.  Progress of Research in Negative Thermal Expansion Materials: Paradigm Shift in the Control of Thermal Expansion.

Authors:  Koshi Takenaka
Journal:  Front Chem       Date:  2018-07-02       Impact factor: 5.221
  6 in total

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