Preparation and crystal structure of Fe(Sb1−xTex)2 and Co(Sb1−xTex)2 (0 ≦ x ≦ 1)

Electronic transport and magnetic properties of a new nickel antimonide telluride, Ni2SbTe2

“…Most compounds containing Sb and Te as anions display mixing on a single crystallographic site, and therefore usually do not represent new crystal structure types. Examples of compounds that contain both Sb and Te as anions (usually this means no Sb-Te bonding) include Mn 2 SbTe [11], Co 2 SbTe [12], CoSbTe [13], FeSbTe [13], Nb 3 Sb 2 Te 5 [14], Cu 9.1 TeSb 3 [15], ZrSb 2 Te [16], Ni 2 SbTe [17], PdSbTe [18], Pd 2 SbTe [19], Mo 3 Sb 5 Te 2 [20], and Cr 2 SbTe [21]. With the exception of Cu 9.1 TeSb 3 , Ni 7−δ SbTe 2 , and PdSbTe, all of the above compounds have Sb and Te anions mixed on the same crystallographic site.…”

Crystal structure of LuCu4−xSb2 (x=1.053)

“…Very similar arrangements of the filled octahedrons are observed in some other structures which are not shown in Fig. 3, such as FeSb 2 [6] or its ordered derivative CuSb 2 O 6 [7]. Filling empty channels in the TiO 2 structure by atoms lead to the atomic arrangement typical to NiAs type of structure [8].…”

Measured and simulated thermoelectric properties of FeAs2−xSex (x = 0.30–1.0): from marcasite to arsenopyrite structure

“…Koizumi et al has reported a change from marcasite to arsenopyrite in the FeAs 2Àx Te x solid solution. 26 FeAs 2Àx Te x crystallize in the marcasite structure type for the entire series except for 0.8 r x r 1.2 where the samples are of the arsenopyrite structure type. The authors attribute the deformation of the marcasite structure to arsenopyrite to a low spin d 4.8 -d 5.2 state.…”

“…The authors attribute the deformation of the marcasite structure to arsenopyrite to a low spin d 4.8 -d 5.2 state. 26 Wold explains this distortion when plotting the energy band model for FeAs 2 . The valence orbitals are comprised of two degenerate 'b' bonding orbitals, a nonbonding 'a ll ' orbital, and two anti-bonding 'a' orbitals which originate from Fe's 3d orbitals mixing with As's orbitals.…”