Details

Autor(en) / Beteiligte

• Koch, R J
• Sinclair, R
• McDonnell, M T
• Yu, R
• Abeykoon, M
• Tucker, M G
• Tsvelik, A M
• Billinge, S J L
• Zhou, H D
• Yin, W-G
• Bozin, E S

Titel

Dual Orbital Degeneracy Lifting in a Strongly Correlated Electron System

Ist Teil von

• Physical review letters, 2021-05, Vol.126 (18), p.186402-186402, Article 186402

Ort / Verlag

United States: American Physical Society

Erscheinungsjahr

2021

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• The local structure of NaTiSi_{2}O_{6} 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.