Fig. 1From: Effects of Thickness of a Low-Temperature Buffer and Impurity Incorporation on the Characteristics of Nitrogen-polar GaNAFM images of the a LT-20 (Rq 0.394 nm), b LT-21 (Rq 0.868 nm), and c LT-32 (Rq 0.909 nm) samples. Surface roughness of each sample, Rq, is shown in the parenthesesBack to article page