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Journal of the Korean Physical Society

, Volume 62, Issue 10, pp 1542–1546 | Cite as

Onset of magnetic order in U2(Ni1−x Fe x )2Sn-H

  • S. Mašková
  • L. Havela
  • A. Kolomiets
  • K. Miliyanchuk
  • A. V. Andreev
  • H. Nakotte
  • J. Peterson
  • Y. Skourski
  • S. Yasin
  • S. Zherlitsyn
  • J. Wosnitza
Article
  • 35 Downloads

Abstract

We present specific heat and magnetic studies as a function of temperature and magnetic field for U2(Ni1−x Fe x )2Sn alloys (x = 0.0, 0.05, 0.1, 0.15, 0.2, 0.4, 0.6 and 0.8) and their hydrides (absorption of ≈ 2 H/f.u.). For the parent alloys, antiferromagnetic order is rapidly suppressed with increasing Fe concentration and non-Fermi-liquid behavior was found for x = 0.2. Hydrogenation of the parent alloys causes a substantial increase of T N in Fe-low hydrides (x < 0.2), while Fe-rich hydrides show an unexpected appearance of ferromagnetism in the range 0.4 ≤ x ≤ 0.8. Some of the findings are compared with similar studies in U2Co2Sn and U2Co2InH1.9.

Keywords

Uranium compounds Magnetic properties Metal hydrides Non-Fermi liquid behavior Heavyfermion compounds 

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References

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Copyright information

© The Korean Physical Society 2013

Authors and Affiliations

  • S. Mašková
    • 1
  • L. Havela
    • 1
  • A. Kolomiets
    • 1
    • 2
  • K. Miliyanchuk
    • 3
  • A. V. Andreev
    • 4
  • H. Nakotte
    • 5
  • J. Peterson
    • 5
  • Y. Skourski
    • 6
  • S. Yasin
    • 6
  • S. Zherlitsyn
    • 6
  • J. Wosnitza
    • 6
  1. 1.Department of Condensed Matter PhysicsCharles UniversityPragueThe Czech Republic
  2. 2.Department of PhysicsLviv Polytechnic National UniversityLvivUkraine
  3. 3.Faculty of ChemistryIvan Franko National UniversityLvivUkraine
  4. 4.Institute of PhysicsASCRPragueThe Czech Republic
  5. 5.Department of PhysicsNew Mexico State UniversityLas CrucesUSA
  6. 6.Hochfeld-MagnetlaborFZ Dresden-RossendorfDresdenGermany

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