Doping dependence of pseudogap and related charge dynamics in Nd2−xCexCuO4

Y. Onose, Y. Taguchi, K. Ishizaka, Y. Tokura

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


A notable pseudogap (ΔPG as large as 0.2-0.4 eV) has been found below a characteristic temperature T* in the optical conductivity spectrum for metallic but nonsuperconducting crystals of Nd2−xCexCuO4(x<0.15). The ΔPG and T* decrease with doping x, holding the relation of ΔPG≈10kBT*. The Drude-like component is observed to evolve concomitantly with the pseudogap. The T* almost coincides with another characteristic temperature T0 that scales the Hall coefficient. These results indicate that the charge transport in the underdoped region is under the strong influence of the pseudogap state.

Original languageEnglish
Pages (from-to)217001-1-217001-4
JournalPhysical Review Letters
Issue number21
Publication statusPublished - 2001 Nov 19


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