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The Sub-mK Transition of CeCu\(_{6}\) in a New Light

  • Erwin SchuberthEmail author
Article
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Abstract

Following our recent discovery of superconductivity in YbRh\(_2\)Si\(_2\)  at 2 mK, nearly coinciding with a hybrid electronic–nuclear magnetic moment ordering (Schuberth et al. in Science 351:485, 2016), we re-analyzed previous data on the magnetic susceptibility of CeCu\(_{6}\) at ultra-low temperatures. We found that there is a direct analogy between the magnetic susceptibilities of both compounds which raises the question if there is the same hybrid transition in CeCu\(_{6}\), possibly also followed by superconductivity. Data taken some 20 years ago by groups in Garching and at Cornell University revealed an antiferromagnetic transition around 3 mK and further anomalies around 0.5 mK, very similar to the case of YbRh\(_2\)Si\(_2\). If the above speculation is correct, it would suggest that superconductivity is a general phenomenon, occurring even in a heavy-fermion compound like CeCu\(_{6}\) which for a long time was considered as “non-ordering.”

Keywords

Heavy-fermion systems Superconductivity Magnetic phase transitions 

Notes

References

  1. 1.
    E.A. Schuberth, J. Schupp, R. Freese, K. Andres, Phys. Rev. B 51, 12892 (1995)ADSCrossRefGoogle Scholar
  2. 2.
    C. Jin, D.M. Lee, L. Pollack, E.N. Smith, J.T. Markert, M.B. Maple, D.G. Hinks, Physica B 194–196, 207–208 (1994)CrossRefGoogle Scholar
  3. 3.
    H. Tsujii, E. Tanaka, Y. Ode, T. Katoh, T. Mamiya, S. Araki, R. Settai, Y. Ōnuki, Phys. Rev. Lett. 84, 5407 (2000)ADSCrossRefGoogle Scholar
  4. 4.
    L. Pollack, M.J.R. Hoch, C. Jin, E.N. Smith, J.M. Parpia, D.L. Hawthorne, D.A. Geller, D.M. Lee, R.C. Richardson, D.G. Hinks, E. Bucher, Phys. Rev. B 52, R15707 (1995)ADSCrossRefGoogle Scholar
  5. 5.
    E. Schuberth, M. Tippmann, L. Steinke, S. Lausberg, A. Steppke, M. Brando, C. Krellner, C. Geibel, Y. Rong, Q. Si, F. Steglich, Science 351, 485 (2016)ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Technische Universität MünchenGarchingGermany

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