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Magnetotransport in the CeIrIn5 System: The Influence of Antiferromagnetic Fluctuations

Abstract

We present an overview of magnetotransport measurements on the heavy-fermion superconductor CeIrIn5. Sensitive measurements of the Hall effect and magnetoresistance are used to elucidate the low-temperature phase diagram of this system. The normal-state magnetotransport is highly anomalous, and experimental signatures of a pseudogap-like precursor state to superconductivity, as well as evidence for two distinct scattering times governing the Hall effect and the MR, are observed. Our observations point out the influence of antiferromagnetic fluctuations on the magnetotransport in this class of materials. The implications of these findings, both in the context of unconventional superconductivity in heavy-fermion systems and in relation to the high-temperature superconducting cuprates, are discussed.

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Correspondence to S. Wirth.

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Nair, S., Nicklas, M., Sarrao, J.L. et al. Magnetotransport in the CeIrIn5 System: The Influence of Antiferromagnetic Fluctuations. J Supercond Nov Magn 22, 201–204 (2009). https://doi.org/10.1007/s10948-008-0378-0

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  • DOI: https://doi.org/10.1007/s10948-008-0378-0

Keywords

  • Heavy-fermion superconductors
  • Hall effect
  • Magnetoresistance