CHINESE JOURNAL OF PHYSICS VOL. 38, NO. 2-II APRIL 2000

Charge-Spin Separation and the Resistivity in the Spin-Gap State

Masaru Onoda¹, Ikuo Ichinose², and Tetsuo Matsui<sup>3

1</sup>Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK),

Tokyo 188-8501, Japan

²Institute of Physics, University of Tokyo, Komaba, Tokyo 153-8902, Japan

³Department of Physics, Kinki University, Higashi-Osaka 577-8502, Japan
(Received August 17, 1999)

We explain the concept of charge-spin separation (CSS) in the slave-boson t-J model for high-T_c cuprates, and, as an application of the CSS, briefly review our recent calculation of the dc resistivity in the spin-gap state.

PACS. 74.20.-z $\,$- Theories and models of superconducting state.
PACS. 74.25.Fy - Transport properties.

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