Anisotropic scattering and anomalous normal-state transport in a high-temperature superconductor

M. Abdel-Jawad, M. P. Kennett, L. Balicas, A. Carrington, A. P. Mackenzie, R. H. McKenzie, N. E. Hussey

Research output: Contribution to journalArticlepeer-review

155 Citations (Scopus)

Abstract

The metallic state of high-temperature copper-oxide superconductors, characterized by unusual and distinct temperature dependences in the transport properties(1-4), is markedly different from that of textbook metals. Despite intense theoretical efforts(5-11), our limited understanding is impaired by our inability to determine experimentally the temperature and momentum dependence of the transport scattering rate. Here, we use a powerful magnetotransport probe to show that the resistivity and the Hall coefficient in highly doped Tl2Ba2CuO6+delta originate from two distinct inelastic scattering channels. One channel is due to conventional electron electron scattering; the other is highly anisotropic, has the same symmetry as the superconducting gap and a magnitude that grows approximately linearly with temperature. The observed form and anisotropy place tight constraints on theories of the metallic state. Moreover, in heavily doped non-superconducting La2-xSrxCuO4, this anisotropic scattering term is absent(12), suggesting an intimate connection between the origin of this scattering and superconductivity itself.

Original languageEnglish
Pages (from-to)821-825
Number of pages5
JournalNature Physics
Volume2
Issue number12
DOIs
Publication statusPublished - Dec 2006

Keywords

  • QUASI-PARTICLE SCATTERING
  • HALL ANGLE
  • MAGNETORESISTANCE
  • TL2BA2CUO6+DELTA
  • DEPENDENCE
  • TRANSITION
  • YBA2CU3O7

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