We will consider novel electronic systems consisting of conducting one-dimensional segments, which form a regular two-dimensional network. Such network is naturally realized in nearly commensurate charge-density wave states of 1T-TaS2 and 1T-TiSe2, Helium atoms adsorbed on graphite, and twisted bilayer graphene at small twisting angles. In this talk, we will show that the network systems support intriguing non-Fermi liquid phases, which crossover to the truly two-dimensional states at low temperatures.

Chair: Yuki Motome (University of Tokyo)