OD (order-disorder) character of the crystal structure of godlevskite Ni9S8
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OD (order-disorder) character of the crystal structure of godlevskite Ni9S8. / Merlino, Stefano; Makovicky, Emil.
I: European Journal of Mineralogy, Bind 21, 2009, s. 863-869.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - OD (order-disorder) character of the crystal structure of godlevskite Ni9S8
AU - Merlino, Stefano
AU - Makovicky, Emil
PY - 2009
Y1 - 2009
N2 - Godlevskite Ni9S8 has been found to be an OD (order-disorder) structure consisting of two kinds of OD layers in strict alternation; these layers display stacking disorder. They have layer symmetries P()2m and P212(2), respectively (symmetry elements in parentheses are perpendicular to OD layers). Two structures with maximum degree of order (MDO polytypes), with space-group symmetries A222 and I4122, respectively, exist, together with more complex polytypes or disordered sequences. The OD character is in keeping with the frequent twinning of godlevskite.
AB - Godlevskite Ni9S8 has been found to be an OD (order-disorder) structure consisting of two kinds of OD layers in strict alternation; these layers display stacking disorder. They have layer symmetries P()2m and P212(2), respectively (symmetry elements in parentheses are perpendicular to OD layers). Two structures with maximum degree of order (MDO polytypes), with space-group symmetries A222 and I4122, respectively, exist, together with more complex polytypes or disordered sequences. The OD character is in keeping with the frequent twinning of godlevskite.
KW - Faculty of Science
KW - godlevskite
KW - polytyper
KW - orden-uorden strukturer
KW - godlevskite
KW - polytypes
KW - OD structure
KW - nickel arsenide
U2 - 10.1127/0935-1221/2009/0021-1961
DO - 10.1127/0935-1221/2009/0021-1961
M3 - Journal article
VL - 21
SP - 863
EP - 869
JO - European Journal of Mineralogy
JF - European Journal of Mineralogy
SN - 0935-1221
ER -
ID: 15998175