https://doi.org/10.1140/epjb/s10051-024-00757-6
Regular Article - Solid State and Materials
Exact ground states for pentagon chains with spin–orbit interaction
Department of Theoretical Physics, University of Debrecen, Bem ter 18/B, 4010, Debrecen, Hungary
Received:
7
May
2024
Accepted:
20
July
2024
Published online:
12
August
2024
Exact ground states (GS) are deduced for conducting polymers possessing pentagon type of unit cell. The study is done in the presence of many-body spin–orbit interaction (SOI), local and nearest-neighbor Coulomb repulsion (CR), and presence of external E electric and B magnetic fields (EF). The simultaneous presence of SOI, CR, and EF in the exact conducting polymer GS is a novelty, so the development of the technique for the treatment possibility of such strongly correlated cases is presented in detail. The deduced GS show a broad spectrum of physical characteristics ranging from charge density waves doubling the system periodicity, metal–insulator transitions, to interesting external field-driven effects as, e.g., modification possibility of a static charge distribution by a static EF.
© The Author(s) 2024
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