Investigation of Mn, Fe, and Ni incorporation in CeCo2Al8.
Single crystals of CeCo(2-x)M(x)Al(8) (M = Mn, Fe, Ni; 0 ≤ x < 1) were grown and characterized by X-ray diffraction and magnetic susceptibility. The unit cell volumes of Mn-doped compounds increase and those of Ni-doped compounds decrease with increasing dopant concentration. All samples display a magnetic ordering near 6 K with magnetic moments of the analogues ranging from 2.61 to 2.81 μ(B)/mol Ce and slightly higher than Ce(3+) only magnetic moment. The unit cell volumes of Fe-doped compounds also increase with increasing Fe concentration. However, the cell volume of CeCo(2-x)Fe(x)Al(8) decreases for x = 1.00 and is not Curie-Weiss possibly because of valence fluctuation.
Department of Chemistry and §Department of Physics and Astronomy, Louisiana State University , Baton Rouge, Louisiana 70803, United States.
LaRico J
LJ
Treadwell
Pilanda
P
Watkins-Curry
Jacob D
JD
McAlpin
Drew J
DJ
Rebar
Jessica K
JK
Hebert
John F
JF
DiTusa
Julia Y
JY
Chan