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

Abdel-Jawad, M., Kennett, M. P., Balicas, L., Carrington, A., MacKenzie, A. P., McKenzie, R. H. and Hussey, N. E. (2006) Anisotropic scattering and anomalous normal-state transport in a high-temperature superconductor. Nature Physics, 2 12: 821-825. doi:10.1038/nphys449


Author Abdel-Jawad, M.
Kennett, M. P.
Balicas, L.
Carrington, A.
MacKenzie, A. P.
McKenzie, R. H.
Hussey, N. E.
Title Anisotropic scattering and anomalous normal-state transport in a high-temperature superconductor
Journal name Nature Physics   Check publisher's open access policy
ISSN 1745-2473
Publication date 2006
Sub-type Article (original research)
DOI 10.1038/nphys449
Volume 2
Issue 12
Start page 821
End page 825
Total pages 5
Place of publication United Kingdom
Publisher Nature Publishing Group
Collection year 2006
Language eng
Subject C1
240203 Condensed Matter Physics - Electronic and Magnetic Properties; Superconductivity
780102 Physical sciences
02 Physical Sciences
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.
Keyword Physics, Multidisciplinary
Quasi-particle Scattering
Hall Angle
Magnetoresistance
Tl2ba2cuo6+delta
Dependence
Transition
Yba2cu3o7
Q-Index Code C1

 
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