Metal-insulator transition in Ca1xLixPd3O4

S. Ichikawa and I. Terasaki
Phys. Rev. B 68, 233101 – Published 9 December 2003
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Abstract

Metal-insulator transition in Ca1xLixPd3O4 has been studied through charge transport measurements. The resistivity, the Seebeck coefficient, and the Hall coefficient are consistently explained in terms of a simple one-band picture, where a hole with a moderately enhanced mass is itinerant three dimensionally. Contrary to the theoretical prediction [Phys. Rev. B 62, 13 426 (2000)], CaPd3O4 is unlikely to be an excitonic insulator, and holds a finite carrier concentration down to 4.2 K. Thus the metal-insulator transition in this system is basically driven by localization effects.

  • Received 27 May 2003

DOI:https://doi.org/10.1103/PhysRevB.68.233101

©2003 American Physical Society

Authors & Affiliations

S. Ichikawa1 and I. Terasaki1,2,*

  • 1Department of Applied Physics, Waseda University, Tokyo 169-8555, Japan
  • 2Precursory Embryonic Science and Technology, Japan Science and Technology Corporation, Tokyo 108-0075, Japan

  • *Electronic address: terra@waseda.jp

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Issue

Vol. 68, Iss. 23 — 15 December 2003

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