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  Magnetic-field-enhanced aniferromagnetism in the noncentrosymmetric heavy-fermion superconductor CePt3Si

Kaneko, K., Stockert, O., Fåk, B., Raymond, S., Skoulatos, M., Takeuchi, T., et al. (2014). Magnetic-field-enhanced aniferromagnetism in the noncentrosymmetric heavy-fermion superconductor CePt3Si. Physical Review B, 89(24): 241105, pp. 1-5. doi:10.1103/PhysRevB.89.241105.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-001A-2638-2 Version Permalink: http://hdl.handle.net/21.11116/0000-0000-848A-F
Genre: Journal Article

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 Creators:
Kaneko, K.1, Author              
Stockert, O.2, Author              
Fåk, B.3, Author
Raymond, S.3, Author
Skoulatos, M.3, Author
Takeuchi, T.3, Author
Ōnuki, Y.3, Author
Affiliations:
1Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
2Oliver Stockert, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863476              
3external, ou_persistent22              

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 Abstract: The effect of magnetic field on the static and dynamic spin correlations in the noncentrosymmetric heavy-fermion superconductor CePt3Si was investigated by neutron scattering. The application of a magnetic field B increases the antiferromagnetic (AFM) peak intensity. This increase depends strongly on the field direction: for B parallel to[0 0 1] the intensity increases by a factor of 4.6 at a field of 6.6 T, which corresponds to more than a doubling of the AFM moment, while the moment increases by only 10% for B parallel to[1 0 0] at 5 T. This is in strong contrast to the inelastic response near the antiferromagnetic ordering vector, where no marked field variations are observed for B parallel to[0 0 1] up to 3.8 T. The results reveal that the AFM state in CePt3Si, which coexists with superconductivity, is distinctly different from other unconventional superconductors.

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 Dates: 2014-06-25
 Publication Status: Published in print
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Title: Physical Review B
  Other : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 89 (24) Sequence Number: 241105 Start / End Page: 1 - 5 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008