Twinning and defects in N -Nb 2 O 5
N -Nb 2 O 5 [ C 2/ m (No. 12), a = 28.51, b = 3.830 and c = 17.48 Å, and β = 124.8°] has been investigated by means of selected-area electron diffraction (SAED) and high-resolution transmission electron microscopy (HRTEM). N -Nb 2 O 5 is domain twinned, with the twin plane perpendicular to the c * a...
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| Veröffentlicht in: | Acta crystallographica. Section B, Structural science Structural science, 2000-10, Vol.56 (5), p.780-784 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | N
-Nb
2
O
5
[
C
2/
m
(No. 12),
a
= 28.51,
b
= 3.830 and
c
= 17.48 Å, and β = 124.8°] has been investigated by means of selected-area electron diffraction (SAED) and high-resolution transmission electron microscopy (HRTEM).
N
-Nb
2
O
5
is domain twinned, with the twin plane perpendicular to the
c
* axis. The domains are rather small and the domain twinning can sometimes be best explained as stacking faults. A second type of coherent twinning at an angle of 90° to the other two domain directions was also found. These domains are linked together by areas containing blocks of different sizes, similar to the disordered block arrangement observed in
M
-Nb
2
O
5
. |
|---|---|
| ISSN: | 0108-7681 |
| DOI: | 10.1107/S0108768100003657 |