Metallic c-axis Transport Across Insulating Planes in PrBa_2Cu_4O_8

スポンサーリンク

概要

• 論文の詳細を見る

• We report measurements of the resistivity ρ(T) of high-quality single crystals of PrBa_2Cu_4O_8 along all three principal axes. Substitution of Pr for Y in YBa_2Cu_4O_8 completely suppresses superconductivity through localisation of the in-plane charge carriers. At low temperatures, however, ρ(T) is found to be metallic, ρ(T) 〜 T^2 for all three crystallographic directions, and is highly one-dimensional (in-plane anisotropy ρ_a/ρ_b 〜 1000). These results reveal that the CuO double chain network forms a highly anisotropic Fermi liquid ground state at low T. Furthermore, the observation of metallic c-axis resistivity in PrBa_2Cu_4O_8, in the absence of mobile carriers on the planes, confirms that c-axis transport in Y-based cuprates is dominated by the chain carriers.

• 社団法人日本物理学会の論文
• 2002-03-15

著者

• Hussey N.

  H. H. Wills Physics Laboratory University Of Bristol

• Hussey N.

  H. H. Wills Physics Laboratiory University Of Bristol

• MCBRIEN M.

  H. H. Wills Physics Laboratory, University of Bristol

• MEESON P.

  H. H. Wills Physics Laboratory, University of Bristol

• HORII S

  Department of Applied Chemistry, University of Tokyo

• IKUTA H

  Center for Integrated Research in Science and Engineering, Nagoya University

• Meeson P.

  H. H. Wills Physics Laboratory University Of Bristol

• Mcbrien M.

  H. H. Wills Physics Laboratory University Of Bristol

• Horii S

  Department Of Applied Chemistry School Of Engineering University Of Tokyo

• Horii S

  Department Of Applied Chemistry University Of Tokyo

関連論文

• Metallic c-axis Transport Across Insulating Planes in PrBa_2Cu_4O_8
• Synthesis and Thermoelectric Properties of Magnetically c-Axis-Oriented [Ca_2CoO_]_CoO_2 Bulk with Various Oxygen Contents
• Oxygen Nonstoichiometry in Layered Cobaltite Ca_3Co_4O_y

スポンサーリンク