Coexistence of positive and negative magnetic entropy changes in CeMn
2
(Si
1 −
x
Ge
x
)
2
compounds
Zuo Wen-Liang†
, Hu Feng-Xia, Sun Ji-Rong, Shen Bao-Gen‡
(a), (c) The magnetic isotherms and (b), (d) the corresponding Arrott curves of the CeMn
2
(Si
0.6
Ge
0.4
)
2
compound.