Structure and physical properties of RE2Ge2In (RE = La, Ce, Pr, Nd)

Structural chemistry and magnetic properties of R11M4In6 (R=Gd, Tb, Dy, Ho, Er, Y; M=Si, Ge) compounds

“…The critical temperatures of the magnetic ordering determined here for R 11 Ge 4 In 6 are close to those found for R 11 Ge 8 In 2 [13] and R 2 Ge 2 In (R ¼ Gd, Tb, Ho) [18,20]. The former family of compounds crystallizes in just the same tetragonal crystal structure as R 11 Ge 4 In 6 does and with similar values of the lattice parameters.…”

“…In the parent crystal structure of the Ho 11 Ge 10 compound the HoeHo pairs and three types of Ge atoms were described [23]: 1 e isolated atoms (at 8j, 4d and 4e), 2 e pairs of atoms (at 16m) and 3 e square clusters of four atoms (at 8h). The HoeHo interatomic distances in Ho 11 Ge 10 are much shorter then in a metallic Ho and the germanium atoms of type 2 and 3 form a 3D-net where GeeGe distances are equal to 2.543 Å and 2.584 Å, respectively, which is typical for compounds with GeeGe chains [18,23]. In the Sm 11 Ge 4 In 6 -type structure the indium atoms occupy the above mentioned 2-and 3-type positions (16m and 8h) despite of significantly larger atomic size (Fig.…”

“…In the R 2 Ge 2 In family of compounds La 2 Ge 2 In is diamagnetic, the compounds with R ¼ Ce, Pr and Nd exhibit localized magnetism of R 3þ ions with complex magnetic behavior hinting at canted antiferromagnetism or spin-glass freezing at the lowest temperatures [18], the compounds with R ¼ Sm, Gd, Tb and Ho are antiferromagnets with the Néel temperature equal to 25, 42, 51 and 23 K, respectively, and Yb 2 Ge 2 In is a Pauli paramagnet [20]. Ce 3 GeIn 4 is paramagnetic down to 1.72 K, whereas Ce 11 Ge 4 In 6 orders ferromagnetically at T c ¼ 7.5 K [14].…”

Experimental and theoretical investigations for site preference and anisotropic size change of RE11Ge4In6−xMx (RE=La, Ce; M=Li, Ge; x=1, 1.96)

“…After the annealing process, a furnace was tuned-off allowing the reactants were cooled down to room temperature naturally. Two reactions produced each title compound mixed with some La 4 LiGe 4 , La 2 InGe 2 and Ce 4 LiGe 4 [11,32], respectively, according to powder X-ray diffraction patterns. Both compounds became visibly moisture-and air-sensitive after one day.…”

The phase relationships in the Al–Zr–Ho ternary system at 773K

“…It is well known that most of rare earth elements have good magnetism. The results of Zaremba et al [5] showed that the effective magnetic moment for Ce 3+ , Pr 3+ and Nd 3+ has small difference between fitted and theoretical values. It means that the effective magnetic moment of RE 3+ has a very good locality.…”