Physical properties of the ferromagnetic heavy-fermion compound U Ir2 Zn20

E. D. Bauer, A. D. Christianson, J. S. Gardner, V. A. Sidorov, J. D. Thompson, J. L. Sarrao, M. F. Hundley

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Abstract

Measurements of magnetization, specific heat, neutron diffraction, and electrical resistivity at ambient and applied pressure have been carried out on the cubic compound U Ir2 Zn20. A first-order-like ferromagnetic transition occurs at TC =2.1 K with a saturation magnetization μsat ∼0.4 μB, indicating itinerant ferromagnetism. In this ordered state, the electronic specific heat coefficient remains large, γ∼450 mJmol K2, classifying U Ir2 Zn20 as one of the very few heavy-fermion ferromagnets.

Original languageEnglish
Article number155118
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume74
Issue number15
DOIs
StatePublished - 2006

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