Zur mischphasenbildung der mononitride in den systemen U- (Y, La, Pr)-N

Sublimation crystal growth of yttrium nitride

“…Several groups reported the rocksalt crystal structure for YN with lattice constants between 4.8 and 4.9Å [12][13][14][15]. No other crystal structure has been experimentally reported for YN, but a recent first principle calculation compared the wurtzite and bcc structures to the rocksalt structure (the latter was the most stable) [16].…”

“…In the 1950s, a group produced YN powder by first converting yttrium metal to YH 2 by reacting with hydrogen at 550 1C in a quartz tube, then heating this gas to 900 1C in the presence of nitrogen [12]. Later in the 1960s, YN powders were obtained by reacting yttrium metal with nitrogen at 1400 1C [13] and arc-melting under 0.3 MPa nitrogen [14]. Recently, YN thin films were grown on both silicon and sapphire substrates by laser ablation deposition [20] and reactive magnetron sputtering [21], respectively.…”

Elemental resolved magnetism of Gadoliniumnitride layers and GdN/Fe multilayers

“…4.3 is that for substrate temperatures T S < 400 C the average lattice constant is larger than for bulk GdN. Holleck et al reported an increasing lattice constant in pnictides due to a nitrogen deficiency or impurities with oxygen [37]. This is because the trivalent ionic Gd 3+ in GdN has a smaller sphere radius than the metallic bound Gd.…”