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Antiferromagnetic ordering in the Kondo lattice system Yb2Fe3Si5

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons126810

Ramakrishnan,  S.
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons126660

Hossain,  Z.
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons126614

Geibel,  C.
Christoph Geibel, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Zitation

Singh, Y., Ramakrishnan, S., Hossain, Z., & Geibel, C. (2002). Antiferromagnetic ordering in the Kondo lattice system Yb2Fe3Si5. Physical Review B, 66(1): 014415, pp. 014415-014415. doi:10.1103/PhysRevB.66.014415.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0015-312F-F
Zusammenfassung
Compounds belonging to the R2Fe3Si5 series exhibit unusual superconducting and magnetic properties. Although a number of studies have been made on the first reentrant antiferromagnet superconductor Tm2Fe3Si5, the physical properties of Yb2Fe3Si5 are largely unexplored. In this work, we attempt to provide a comprehensive study of bulk properties such as, resistivity, susceptibility, and heat capacity of a well-characterized polycrystalline Yb2Fe3Si5. Our measurements indicate that Yb3+ moments order antiferromagnetically below 1.7 K. Moreover, the system behaves as a Kondo lattice with large Sommerfeld coefficient (gamma) of 0.5 J/Yb mol K-2 at 0.3 K, which is well below T-N. The absence of superconductivity in Yb2Fe3Si5 down to 0.3 K at ambient pressure is attributed to the presence of the Kondo effect.