Direct and indirect preparation of layered quaternary manganese tellurides; AMnxMyTe2 (A=Li, Na; M=Cu, Ag; x+y2) Academic Article uri icon

abstract

  • A series of layered quaternary tellurides with AMn x M y Te 2 (A=Li, Na; M=Cu, Ag; x+y2) compositions were prepared in two different ways; direct synthesis from elemental starting materials and reaction of coinage metals (Cu or Ag) with ternary tellurides, AMnTe 2 (A=Li, Na) with partially empty tetrahedral sites. Products were characterized by single crystal and powder X-ray diffraction, atomic absorption (AA) measurements, and wavelength dispersive spectrometry (WDS). These compounds adopt the CaAl 2 Si 2 structure type (space group Pm31, No. 164), in which Te atoms are arrayed by hexagonal closed packing with random distribution of Mn and M (Cu or Ag) atoms in the tetrahedral sites. Alkali metals reside in octahedral sites between two layers to complete the structure. Resistivity measurements showed that these compounds are either insulators or semiconductors. 2001 Elsevier Science B.V. All rights reserved.

published proceedings

  • Journal of Alloys and Compounds

author list (cited authors)

  • Kim, J., & Hughbanks, T.

citation count

  • 5

complete list of authors

  • Kim, Joonyeong||Hughbanks, Timothy

publication date

  • January 2001