Journal: Nature Nanotechnology

Article Title: On-demand nanoengineering of in-plane ferroelectric topologies

doi: 10.1038/s41565-024-01792-1

Figure Lengend Snippet: a , The surface topography. b , A BE-LPFM image of the pristine sample showing the four distinct super-domain structures. The inset shows the relative TIP-laboratory orientation, the relative orientation between the cantilever of the microscope and the axes of the laboratory. c , The local (black) and global (yellow) dipole distribution for the four different super-domains (I+, I−, II+ and II−). The zoom-ins display examples of the four possible super-domains in the colour dashed circles in b .

Article Snippet: A motorized computer-controlled XY microscope stage (Marzhauser) with minimum scanning steps of 100 nm was used to perform SHG mapping.

Techniques: Microscopy

Journal: Nature Nanotechnology

Article Title: On-demand nanoengineering of in-plane ferroelectric topologies

doi: 10.1038/s41565-024-01792-1

Figure Lengend Snippet: a – c , Illustration of tip bias and scan paths for different slow and fast-scan directions, respectively, with the samples' main crystallographic axis at 45° relative to the laboratory axes ( X , Y ). V TIP is the writing bias. Inset shows the corresponding tip-laboratory orientation. d – f , lllustration of tip bias and scan paths for different slow and fast-scan directions, respectively, with the samples' main crystallographic axis at 0° relative to the laboratory axes ( X , Y ). V TIP is the writing bias. Inset shows the corresponding tip-laboratory orientation, the relative orientation between the cantilever of the microscope and the axes of the laboratory. g – l , Lateral PFM amplitude ( g – i ) and phase ( j – l ) images post raster scanning, corresponding to the writing trajectories shown in a–c, respectively. m – r , Lateral PFM amplitude ( m – o ) and phase ( p – r ) images post raster-scanning, corresponding to the writing trajectories shown in d – f . Insets in amplitude images are amplified images to visualize the superlattice direction. The time used for the fast-scan was 1 s per line which, multiplied by 128 lines, gives us 2 min and 8 s for the slow-scan to be completed.

Article Snippet: A motorized computer-controlled XY microscope stage (Marzhauser) with minimum scanning steps of 100 nm was used to perform SHG mapping.

Techniques: Microscopy, Amplification