![]() ![]() (author)ħ6 FR 20835 - Amendment of VOR Federal Airways V-1, V-7, V- 11 and V-20 Kona, HI On the other hand, no structural phase transition was detected in Sr V 6 O 11. These results indicate that magnetic phase transitions of Na V 6 O 11 at 245 K and 64.2 K are accompanied by structural phase transitions. At 30 K, Na V 6 O 11 was transformed from the hexagonal form to the orthorhombic one (Cmc2 1 ), and V(1) splits into two sites. Consequently, V(2) splits into two sites. At 200 K, Na V 6 O 11 loses the center of symmetry, and its space group changes from P6 3 /mmc to P6 3 mc. Kanke, Yasushi Izumi, Fujio Kato, Katsuo Morii, Yukio Funahashi, Satoru Akiba, Etsuo.Ĭrystal structures of Na V 6 O 11 at several temperatures were studied by either Rietveld analyses of both neutron and X-ray powder diffraction data, or an analysis of X-ray single crystal diffraction data. International Nuclear Information System (INIS) Structural phase transitions of Na V6O 11 and Sr V6O 11 ![]()
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