000897405 001__ 897405
000897405 005__ 20211006140921.0
000897405 0247_ $$2doi$$a10.5281/ZENODO.5113235
000897405 037__ $$aFZJ-2021-03771
000897405 041__ $$aEnglish
000897405 1001_ $$0P:(DE-Juel1)177024$$aStrauch, Achim$$b0$$eCorresponding author
000897405 245__ $$aSynthetic 4D STEM dataset based on a SrTiO3 supercell with two additional artificial spatial frequencies
000897405 260__ $$c2021
000897405 3367_ $$2DCMI$$aSoftware
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000897405 3367_ $$06$$2EndNote$$aComputer Program
000897405 3367_ $$2ORCID$$aOTHER
000897405 3367_ $$2DataCite$$aSoftware
000897405 520__ $$a<p>This dataset allows to investigate phase contrast methods for 4D scanning transmission electron microscopy, such as ptychography.</p> <p>A synthetic dataset has been simulated, based on an SrTiO<sub>3</sub> unit cell as a starting point. Then, a five by five super cell was created by repetition. Two artificial spatial frequencies were added to the phase grating, one with a wavelength of a single unit cell and one with a wavelength of the super cell. To eliminate dynamical scattering, a 4D-STEM simulation with 20 &times; 20 scan&nbsp;points per unit cell was performed using only one slice with a thickness of one unit cell along electron beam direction [001].</p> <p><strong>Files</strong></p> <ul> <li><em>conf_01.mat</em>: HDF5 file with the phase grating.</li> <li><em>Data extraction and plot of the phase grating.ipynb</em>: Jupyter notebook showing how to access the phase grating file and plot the&nbsp;data.</li> <li><em>slice_00001_thick_1.9525_nm_blocksz100.raw</em>: Simulated 4D STEM dataset as a raw binary file. Shape 100 x 100 x 596 x 596, dtype float32.</li> <li><em>ssb-example.ipynb</em>: Jupyter notebook showing first moment analysis and ptychography with the dataset.</li> </ul> <p><strong>Simulation parameters</strong></p> <ul> <li>Scan points: 100x100</li> <li>Field of view: 1.9525nm</li> <li>Convergence angle: 23mrad,&nbsp;136 px</li> <li>Acceleration voltage: 300 kV</li> <li>Center: (297, 297)</li> <li>Rotation angle: 0&deg;</li> </ul>
000897405 536__ $$0G:(DE-HGF)POF4-5351$$a5351 - Platform for Correlative, In Situ and Operando Characterization (POF4-535)$$cPOF4-535$$fPOF IV$$x0
000897405 536__ $$0G:(DE-HGF)VH-NG-1317$$amoreSTEM - Momentum-resolved Scanning Transmission Electron Microscopy (VH-NG-1317)$$cVH-NG-1317$$x1
000897405 536__ $$0G:(DE-HGF)ZT-I-0025$$aPtychography 4.0 - Proposal for a pilot project "Information & Data Science" (ZT-I-0025)$$cZT-I-0025$$x2
000897405 588__ $$aDataset connected to DataCite
000897405 7001_ $$0P:(DE-Juel1)171370$$aWeber, Dieter$$b1
000897405 7001_ $$0P:(DE-Juel1)174151$$aClausen, Alexander$$b2
000897405 7001_ $$0P:(DE-Juel1)165314$$aMüller-Caspary, Knut$$b3
000897405 773__ $$a10.5281/ZENODO.5113235
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000897405 9141_ $$y2021
000897405 9201_ $$0I:(DE-Juel1)ER-C-1-20170209$$kER-C-1$$lPhysik Nanoskaliger Systeme$$x0
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