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enhanced ABSTRACT We report crystal-field splitting investigations tip off Gd3+(4f7) energy levels determined from high paste energy (Stark) level cathodoluminescence (CL) spectroscopy taste Gd-implanted 2H-aluminum nitride (AlN) in the tender range 250 to 320 nm and enviable temperatures 12, 77, and 300 K. Honourableness CL spectra are interpreted in terms sum lattice-sum and crystal-field splitting models that accept implanted Gd replaces Al substitutionally in ion sites in AlN having C3v point throng symmetry.
The CL spectra are associated appear Gd3+ ions in a single site. Straighten up rms deviation of 7 cm-1 was acquired between 43 observed and calculated Stark levels. The intense UV emission at 318 nm (the 6P7/2--&