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

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

“…In particular, the dumbbell-site displays the mixed-occupation of In and Li for La 11 Ge 4 In 5.00(1) Li 1.00 and that of Ge and In for As briefly mentioned in Introduction, a series of ternary indide compounds adopting the Sm 11 Ge 4 In 6 -type structure [14] has been known for its interesting magnetic properties and applicability as magnetocaloric effect materials. These include the RE 11 Ge 8 In 2 (RE = Gd-Tm) [19] and the RE 11 Tt 4 In 6 (RE = Y, La, Gd-Er; Tt = Si, Ge) systems [20,21]. As one can easily imagine, these ternary indide compounds can be considered as ordered derivatives produced by…”

“…Once all Ge atoms at the square-sites were completely replaced, then the general chemical formula became RE 11 Ge 8 In 2 (RE = rare-earth metals) [19]. If the amounts of replacement In atoms increased, the substitution could also occur at the dumbbell-site resulting in producing the RE 11 Ge 4 In 6 (RE = Y, La, Gd-Er) series [20,21]. The RE 11 Si 4 In 6 (RE = Y, Tb-Er) system [21] having Si as a tetrel component was also reported to have an isotypic structure type.…”

“…In particular, the series of ternary indide compounds including the RE 11 Ge 8 In 2 (RE = Gd-Tm) system [19] and the RE 11 Tt 4 In 6 (RE = Y, La, Gd-Er; Tt = Si, Ge) system [20,21] has been known for its interesting magnetocaloric effect. Moreover, a series of isotypic binary or ternary pnictides with some triel or tetrel substitutions including the A 11 Pn 10-x T x (A = Rb, Cs, Ca, Sr, Ba, Eu, Yb; Pn = Sb, Bi; and T = Si, Ge, Sn) system [18,[22][23][24] has been thoroughly studied given its particular thermoelectric property.…”

Ce11Ge3.73(2)In6.27: Solid-state synthesis, crystal structure and site-preference

“…Among a vast number of intermetallic compounds, several series of phases adopting the Ho 11 Ge 10 -type structure [6] and carrying the chemical formula of RE 11 Tt 10 À x In x (RE ¼ rare-earth metals; Tt ¼Si, Ge; 2r xr6) [7][8][9][10][11][12] and A 11 Pn 10 À x Tt x (A ¼Rb, Cs, Ca, Sr, Ba, Eu, Yb; Pn ¼Sb, Bi; Tt ¼ Si, Ge, Sn) [13][14][15][16] have been thoroughly studied to assess their potential energy-converting or saving capabilities as magnetocaloric or thermoelectric materials.…”

“…As a result of our continuous investigation for the RE 11 Tt 10 À x In x (RE ¼rare-earth metals; Tt ¼tetrels) systems, we have recently synthesized another isotypic compound of Ce 11 Ge 3.73 (2) In 6.27 including an excess amount of In substitution for Ge in the parental RE 11 Tt 10 À x In x systems [7][8][9][10][11][12]. As reported in many earlier articles, the available anionic sites for the In substitution were known to be confined within the 3-D framework, which also resulted in limiting the maximum In content to six per formula unit (f.u.…”