1.
Acta Crystallogr B
; 60(Pt 4): 388-405, 2004 Aug.
Artículo
en Inglés
| MEDLINE
| ID: mdl-15258397
RESUMEN
Almost absorption- and extinction-free single-crystal synchrotron X-ray diffraction data were measured at 150, 200 and 295 K for beta-Si3N4, silicon nitride, at a wavelength of 0.7 A. The true symmetry of this material has been the subject of minor controversy for several decades. No compelling evidence favouring the low-symmetry P6(3) model was identified in this study.
2.
Acta Crystallogr C
; 56 ( Pt 2): 199-200, 2000 Feb.
Artículo
en Inglés
| MEDLINE
| ID: mdl-10777886