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. 2015 May 13;1:6. doi: 10.1186/s40679-015-0006-6

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© Belianinov et al.; licensee Springer. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.

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Sliding FFT on an STM image of La_5/8Ca_3/8MnO₃. (a) STM topography image of 16-unit cell sample of La_5/8Ca_3/8MnO₃ grown on (001) SrTiO₃. Sliding FFT was carried out, which consists of creating a window (white square in image) in which the FFT is captured, and subsequently sliding the window across the image a preset distance and recording the next FFT of the windowed area until the entire surface is covered to produce the data set. PCA of this data set was performed, and the first four components are shown in (b), with the respective Fourier loadings (c). Transforming the loadings to real space allows investigating the spatial distribution, and the first four real-space components are shown in (d).