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Magnetic properties of UFe2+x prepared by splat cooling
Journal article published in 2008 by
L. Havela 
,
K. Miliyanchuk,
J. Pe?i?ka,
J. Pesicka,
A. P. Gon?alves,
A. P. Goncalves,
E. Šantavá,
J. C. Waerenborgh ,
L. C. J. Pereira ,
E. ?antavá,
J. Šebek,
E. Santava,
J. ?ebek,
J. Sebek
,
K. Miliyanchuk,
J. Pe?i?ka,
J. Pesicka,
A. P. Gon?alves,
A. P. Goncalves,
E. Šantavá,
J. C. Waerenborgh ,
L. C. J. Pereira ,
E. ?antavá,
J. Šebek,
E. Santava,
J. ?ebek,
J. Sebek
Abstract
A series od UFe2+x materials was prepared using splat cooling. The Laves phase structure can accommodate up to 0.3 Fe excess, while T-c is enhanced from 172 K to approximately 240 K. Higher Fe concentration leads to the segregation of alpha-Fe. Fe-57 Mossbauer spectroscopy indicates higher Fe magnetic hyperfine fields on Fe nuclei occupying the U sublattice than for the regular Fe sites.