Synthesis and magnetic structure of the YbMn2Sb2 compound

Combined Experimental and Density Functional Theory Studies on the Crystal Structures and Magnetic Properties of Mg(Mg1–xMnx)2Sb2 (x ≈ 0.25) and BaMn2Sb2

“…This is also consistent with earlier reports on other AMn 2 Sb 2 antimonides (A = Ca, Sr, Yb, Eu) with the same structures. [20,21,35,36] Comparisons of the calculated local moment of Mn and the total energies for each of the selected models of BaMn 2 Sb 2 are presented in Table 4. The same type of analysis for MgMn 2 Sb 2 is provided as Supporting Information.…”

Synthesis and properties of CaCd2Sb2 and EuCd2Sb2

“…The compounds with a nominal composition of AM 2 X 2 (A is alkaline-earth or rare-earth element, M is a transition-metal or a main group element, and X comes from group 15, 14, or more rarely 13) favorably crystallize in ThCr 2 Si 2 type structure (I4/mmm) [11,12], while the above mentioned antimonide analogues crystallized in the trigonal CaAl 2 Si 2 type ðP3mÞ, which is critically tied to the number of valence electrons per formula unit with 16 electrons [13][14][15][16][17][18][19][20][21][22]. Such an electron count can only be achieved for d 0 , d 5 and d 10 metals for antimonide analogues, such as Mg, Mn, Zn, Cd in Refs.…”

Magnetic structure of the YbMn2SbBi compound

“…164, D 3d (32/m) point group) was earlier reported by Ruhl and Jeitschko [1]: in this structure prototype the Yb atoms occupy the 1a (0, 0, 0) special position, manganese atoms occupy the 2d site (1/3, 2/3, Z Mn ) and antimony atoms occupy the 2d site (1/3, 2/3, Z Sb ). The magnetic ordering (with a magnetic transition at about 120 K) and magnetic structure have been found for this compound in works [2,3]. The commensurate magnetic structure of YbMn 2 Sb 2 (C i magnetic point group, P1 magnetic space group) consists of antiferromagnetically coupled manganese magnetic moments in the Mn1 [1/3, 2/3, Z Mn ] and Mn2 [2/3, 1/3, −Z Mn ] positions, the ytterbium magnetic moment is zero.…”

“…The commensurate magnetic structure of YbMn 2 Sb 2 (C i magnetic point group, P1 magnetic space group) consists of antiferromagnetically coupled manganese magnetic moments in the Mn1 [1/3, 2/3, Z Mn ] and Mn2 [2/3, 1/3, −Z Mn ] positions, the ytterbium magnetic moment is zero. At 4 K, the magnetic moment of the Mn atom is Mn = 3.6(1) B [3] that corresponds to the tetravalet state of manganese in YbMn 2 Sb 2 (M Mn4+ = 4 B [4]). …”