2008/03/19 by M. Filibian, Marta Filibian, P. Carretta +8 · 1 citation
Chemistry · Engineering · Physics and Astronomy · #Algorithm #Computer science #Database #Fullerene Chemistry and Applications #Organic Electronics and Photovoltaics #Physics #Semiconductor materials and interfaces #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.100.117601
published as M. Filibian, P. Carretta, M. C. Mozzati, P. Ghigna, G. Zoppellaro and M. Ruben, Phys. Rev. Lett. 100, 117601 (2008) · 5 pages, 4 figures
openalex publication_date 2008/03/19 · arxiv created 2008/08/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Nuclear magnetic resonance, electron paramagnetic resonance and magnetization measurements show that bulk LixZnPc are strongly correlated one-dimensional metals. The temperature dependence of the nuclear spin-lattice relaxation rate 1/T1 and of the static uniform susceptibility chiS on approaching room temperature are characteristic of a Fermi liquid. Moreover, while for x approximately 2 the electrons are delocalized down to low temperature, for x-->4 a tendency towards localization is noticed upon cooling, yielding an increase both in 1/T1 and chis. The x dependence of the effective density of states at the Fermi level D(EF) displays a sharp enhancement for x approximately 2, at the half filling of the ZnPc lowest unoccupied molecular orbitals. This suggests that LixZnPc is on the edge of a metal-insulator transition where enhanced superconducting fluctuations could develop.