Effect of growth temperature on the structural, morphological and magnetic properties of Fe films on GaN(0001)

GaN/Fe core/shell nanowires for nonvolatile spintronics on Si

“…In fact, for planar Fe films on GaN(0001), all these symmetry equivalents are observed to coexist, and the Fe film is consequently found to consist of domains rotated with respect to each other by 120 • . 14,[17][18][19][20] The size of these domains depends on temperature, and reaches values well above 100 nm for the current growth temperature of 350 • C. The small diameters realized in our NW ensembles thus afford only a single structural domain of Fe on the GaN NW tip. Okamoto et al 15 have demonstrated that GaN(0001) films grow epitaxially on Fe(110) substrates.…”

Structural and magnetic properties of ultra-thin Fe films on metal-organic chemical vapour deposited GaN(0001)

“…3. All patterns were recorded with an incident electron beam along the a-axis [11][12][13][14][15][16][17][18][19][20] of GaN(0001). As shown in inset (a), the GaN(0001) surface showed clear 1 x 1 RHEED pattern with Kikuchi arcs indicative of a smooth and long-range ordered crystalline surface.…”

“…Electron back-scatter diffraction measurements, as employed in Ref. 17, can be insightful in determining the distributions of the crystalline domains in our films.…”

In-plane sixfold symmetry forα-Fe(110) on GaN{0001}: Measurement of the cubic anisotropy constantK3of Fe

“…[16]) and exhibit bulk-like properties. The orientation relationships of α-Fe films on GaN{0001} were systematically studied in our previous work [16][17][18][19] and are schematically summarized in Fig. 1.…”