Dual Orbital Degeneracy Lifting in a Strongly Correlated Electron System
Strongly Correlated Electrons
2021-05-12 v1
Abstract
The local structure of NaTiSiO is examined across its Ti-dimerization orbital-assisted Peierls transition at 210 K. An atomic pair distribution function approach evidences local symmetry breaking preexisting far above the transition. The analysis unravels that on warming the dimers evolve into a short range orbital degeneracy lifted (ODL) state of dual orbital character, persisting up to at least 490 K. The ODL state is correlated over the length scale spanning 6 sites of the Ti zigzag chains. Results imply that the ODL phenomenology extends to strongly correlated electron systems.
Keywords
Cite
@article{arxiv.2009.14288,
title = {Dual Orbital Degeneracy Lifting in a Strongly Correlated Electron System},
author = {R. J. Koch and R. Sinclair and M. T. McDonnell and R. Yu and M. Abeykoon and M. G. Tucker and A. M. Tsvelik and S. J. L. Billinge and H. D. Zhou and W. -G. Yin and E. S. Bozin},
journal= {arXiv preprint arXiv:2009.14288},
year = {2021}
}
Comments
7 pages, 5 figures