Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9803283 | Journal of Alloys and Compounds | 2005 | 5 Pages |
Abstract
The crystal structures of the R7Cu3Te12 (R = Tb, Dy, Ho, Er and Tm) compounds (space group R3¯m, Pearson symbol hR27-5) were determined by means of X-ray single crystal diffraction: a = 0.43020(6) nm, c = 4.1720(8) nm, RI = 0.0498 (Ho7Cu3Te12) and X-ray powder diffraction: a = 0.43279(3) nm, c = 4.1896(3) nm, RI = 0.0932 (Tb7Cu3Te12); a = 0.43114(5) nm, c = 4.1779(8) nm, RI = 0.0891 (Dy7Cu3Te12); a = 0.42802(2) nm, c = 4.1575(2) nm, RI = 0.0849 (Er7Cu3Te12); a = 0.42709(3) nm, c = 4.1540(3) nm, RI = 0.0858 (Tm7Cu3Te12). The close packed Te layers in â¦hhcc⦠stacking exists in the crystal structure of the R7Cu3Te12 (R = Tb, Dy, Ho, Er and Tm) compounds. The R atoms occupy 7/12 of octahedral interstices, whereas the Cu atoms occupy 1/8 of tetrahedral interstices.
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Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
L.D. Gulay, I.D. Olekseyuk, A. Pietraszko,