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Summary: PHYSICAL REVIEW B 83, 184435 (2011)
HfFeGa2 and HfMnGa2: Transition-metal-based itinerant ferromagnets with low Curie
temperatures
C. Marques,1,2
Y. Janssen,1
M. S. Kim,1,2
L. Wu,2
S. X. Chi,3
J. W. Lynn,3
and M. C. Aronson1,2,*
1
Brookhaven National Laboratory, Upton, New York 11973, USA
2
Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794, USA
3
NIST Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA
(Received 12 October 2010; revised manuscript received 4 April 2011; published 31 May 2011)
We present a report on the physical properties of the transition-metal-based ferromagnets HfFeGa2 and
HfMnGa2. The magnetic susceptibility in both displays Curie-Weiss behavior at high temperature that is replaced
by the critical susceptibility just above the Curie temperatures, which are 47.9 K in HfFeGa2 and 25.6 K
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