Nanometer-Scale Shearing and Curvature-Driven Grain Boundary Migration in Diblock Copolymer Thin Films Matthew L. Trawick, Physics Department, University.

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Presentation transcript:

Nanometer-Scale Shearing and Curvature-Driven Grain Boundary Migration in Diblock Copolymer Thin Films Matthew L. Trawick, Physics Department, University of Richmond, VA 23173 Curvature-driven motion of U-shaped grain boundary 30 nm SUBSTRATE Schematic of spherical microdomains in block copolymer film Shear alignment of microdomains with AFM tip. Other Related Projects: Phase behavior and alignment of block copolymer thin films near substrate step edges. Correction of thermal drift distortion and other artifacts in atomic force microscopy. Flattened AFM tip