Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Christian Liebscher"'
Publikováno v:
Microscopy and Microanalysis
We present an unsupervised machine learning approach for segmentation of static and dynamic atomic-resolution microscopy data sets in the form of images and video sequences. In our approach, we first extract local features via symmetry operations. Su
Autor:
Christian Liebscher, Matej Bobnar, Igor Veremchuk, Iryna Zelenina, Paul Simon, Xinke Wang, Wenjun Lu, Yuri Grin
Publikováno v:
Communications Materials, Vol 2, Iss 1, Pp 1-8 (2021)
Lead chalcogenides are known for their thermoelectric properties since the first work of Thomas Seebeck on the discovery of this phenomenon. Yet, the electronic properties of lead telluride are still of interest due to the incomplete understanding of
Publikováno v:
Microscopy and Microanalysis
The recent development of electron-sensitive and pixelated detectors has attracted the use of four-dimensional scanning transmission electron microscopy (4D-STEM). Here, we present a precession electron diffraction-assisted 4D-STEM technique for auto
Autor:
Zaoli Zhang, Yonghui Zheng, David Holec, Paul H. Mayrhofer, Gerhard Dehm, Christian Liebscher, Matthias Bartosik, Zhuo Chen, Nikola Koutná
Publikováno v:
Acta Materialia
We report on a multilayered structure comprising of rock-salt (rs) structured CrN layers of constant thickness and AlN layers of varying thicknesses, which surprisingly enables the growth of metastable zinc-blende (zb) AlN layers for certain layer-th
Publikováno v:
Nature
While the theory of grain boundary (GB) structure has a long history1 and the proposition that grain boundaries can undergo phase transformations was made already 50 years ago2,3, the search for these GB transitions has been in vain. The underlying a
Autor:
Wenqi Guo, Dierk Raabe, F.K. Yan, Zhiming Li, Linlin Li, Christian Liebscher, Xufei Fang, Jianjun Li, Gerhard Dehm, Wenjun Lu
Publikováno v:
Acta Materialia. 185:218-232
Nanostructuring metals through nanograins and nanotwins is an efficient strategy for strength increase as the mean free path of dislocations is reduced. Yet, nanostructures are thermally often not stable, so that the material properties deteriorate u
Autor:
Michaela Šlapáková, Frank Stein, Christian Liebscher, Gerhard Dehm, Ali Zendegani, J. Grin, Tilmann Hickel, K.S. Kumar, Joerg Neugebauer, Thomas Hammerschmidt, Alim Ormeci
Publikováno v:
Acta Materialia. 183:362-376
Laves phases belong to the group of tetrahedrally close-packed intermetallic phases, and their crystal structure can be described by discrete layer arrangements. They often possess extended homogeneity ranges and the general notion is that deviations
Publikováno v:
Applied Surface Science
Applied Surface Science, Elsevier, 2021, 562, pp.150194. ⟨10.1016/j.apsusc.2021.150194⟩
Applied Surface Science, Elsevier, 2021, 562, pp.150194. ⟨10.1016/j.apsusc.2021.150194⟩
Titanium thin films were deposited on silicon nitride (SiNx) coated Si, NaCl, and sapphire substrates varying the deposition conditions using e-beam evaporation to investigate thin film growth modes. The microstructure and texture evolution in depend
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4532ac11d56a337f2c1e0f9e3f95425
https://hal.archives-ouvertes.fr/hal-03246363
https://hal.archives-ouvertes.fr/hal-03246363
Autor:
A. Adikimenakis, Liverios Lymperakis, M. Androulidaki, Emmanouil Dimakis, A. Gkotinakos, Alexandros Georgakilas, G. P. Dimitrakopulos, Philomela Komninou, Christian Liebscher, I. G. Vasileiadis, Theodoros Karakostas, Vivek Devulapalli, René Hübner
Publikováno v:
Scientific Reports
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
Scientific Reports 11(2021), 20606
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
Scientific Reports 11(2021), 20606
InGaN/GaN quantum wells (QWs) with sub-nanometer thickness can be employed in short-period superlattices for bandgap engineering of efficient optoelectronic devices, as well as for exploiting topological insulator behavior in III-nitride semiconducto
Autor:
Daniel Scheiber, Xuyang Zhou, Ali Ahmadian, Baptiste Gault, Lorenz Romaner, Gerhard Dehm, Christian Liebscher
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-11 (2021)
Nature Communications
Nature Communications
The local variation of grain boundary atomic structure and chemistry caused by segregation of impurities influences the macroscopic properties of polycrystalline materials. Here, the effect of co-segregation of carbon and boron on the depletion of al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ae7765932ea5cf122cbbb437aa3709d
http://hdl.handle.net/10044/1/104233
http://hdl.handle.net/10044/1/104233