DMRG shows the Lieb ferrimagnetic phase on the trimer-chain extended Hubbard model at half filling remains stable up to V ≳ U/4 before phase separation into a doublon-populated phase and either metallic unsaturated FM or singlet phase.
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Trimers in the Extended Hubbard Model
DMRG shows the Lieb ferrimagnetic phase on the trimer-chain extended Hubbard model at half filling remains stable up to V ≳ U/4 before phase separation into a doublon-populated phase and either metallic unsaturated FM or singlet phase.