Strong electronic correlations in Li$_x$ZnPc organic metals

Simple item page
dc.creatorFilibian, M.
dc.creatorCarretta, P.
dc.creatorMozzati, M. C.
dc.creatorGhigna, P.
dc.creatorZoppellaro, G.
dc.creatorRuben, M.
dc.date2008-08-22
dc.date.accessioned2026-07-07T09:57:59Z
dc.date.available2026-07-07T09:57:59Z
dc.descriptionNuclear magnetic resonance, electron paramagnetic resonance and magnetization measurements show that bulk Li$_x$ZnPc are strongly correlated one-dimensional metals. The temperature dependence of the nuclear spin-lattice relaxation rate $1/T_1$ and of the static uniform susceptibility $χ_S$ on approaching room temperature are characteristic of a Fermi liquid. Moreover, while for $x\simeq 2$ the electrons are delocalized down to low temperature, for $x\to 4$ a tendency towards localization is noticed upon cooling, yielding an increase both in $1/T_1$ and $χ_s$. The $x$-dependence of the effective density of states at the Fermi level $D(E_F)$ displays a sharp enhancement for $x\simeq 2$, at the half filling of the ZnPc lowest unoccupied molecular orbitals. This suggests that Li$_x$ZnPc is on the edge of a metal-insulator transition where enhanced superconducting fluctuations could develop.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0808.3107
dc.identifierhttp://arxiv.org/abs/0808.3107
dc.identifierM. Filibian, P. Carretta, M. C. Mozzati, P. Ghigna, G. Zoppellaro and M. Ruben, Phys. Rev. Lett. 100, 117601 (2008)
dc.identifierdoi:10.1103/PhysRevLett.100.117601
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/167551
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleStrong electronic correlations in Li$_x$ZnPc organic metals
dc.typetext

Files

Collections

arXiv