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Journal of Superconductivity and Novel Magnetism

, Volume 26, Issue 9, pp 2885–2886 | Cite as

Coexistence of Superconductivity and Antiferromagnetism in Heavy-Fermion Intermetallic Compound CeRhIn5

  • Valery V. Val’kov
  • Anton O. ZlotnikovEmail author
Original Paper

Abstract

An interference of heavy-fermion superconductivity (SC) and antiferromagnetism (AFM) has been studied in the framework of the periodic Anderson model with the superexchange interaction between localized electrons. It has been shown that pressure-induced energy change of the localized states leads to modifying antiferromagnetic and superconducting order parameters. Conditions have been found for the coexistence of SC and AFM in the model. Theoretical results of the pressure effects on the ground state character of the heavy-fermion systems are in good agreement with experimental data for a rare-earth intermetallic compound CeRhIn5. The divergence of the effective electron mass produced by suppressing the long-range antiferromagnetic order has also been analyzed in the same framework.

Keywords

Coexistence superconductivity antiferromagnetism Periodic Anderson model Heavy-fermion systems 

Notes

Acknowledgements

This work was supported by the program “Quantum mesoscopic and disordered matter” of the Presidium of the RAS; the Russian Foundation for Basic Research (the projects No. 13-02-00523 and No. 12-02-31130); The Ministry of education and science of Russia, project 14.132.21.1410 and the grant of the President of the Russian Federation (project MK-526.2013.2).

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.L.V. Kirensky Institute of PhysicsKrasnoyarskRussia
  2. 2.Siberian State Aerospace UniversityKrasnoyarskRussia

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