Zobrazeno 1 - 10
of 13 906
pro vyhledávání: '"LeBeau, A."'
Robust atomic resolution structural characterization of point defects in 3D is a longstanding challenge for electron microscopy. Here, we evaluate multislice electron ptychography as a tool to carry out 3D atomic resolution characterization of point
Externí odkaz:
http://arxiv.org/abs/2409.07663
Ion implantation is widely used to dope semiconductors for electronic device fabrication, but techniques to quantify point defects and induced damage are limited. While several techniques can measure dopant concentration profiles with high accuracy,
Externí odkaz:
http://arxiv.org/abs/2409.06987
Autor:
Zhu, Menglin, Xu, Michael, Qi, Yubo, Gilgenbach, Colin, Kim, Jieun, Zhang, Jiahao, Denzer, Bridget R., Martin, Lane W., Rappe, Andrew M., LeBeau, James M.
Introducing structural and/or chemical heterogeneity into otherwise ordered crystals can dramatically alter material properties. Lead-based relaxor ferroelectrics are a prototypical example, with decades of investigation having connected chemical and
Externí odkaz:
http://arxiv.org/abs/2408.11685
Understanding and controlling the growth of chalcogenide perovskite thin films through interface design is important for tailoring film properties. Here, the film and interface structure of BaZr(S,Se)$_3$ thin films grown on LaAlO$_3$ by molecular be
Externí odkaz:
http://arxiv.org/abs/2407.21269
Autor:
Taheri-Mousavi, S. Mohadeseh, Xu, Michael, Hengsbach, Florian, Houser, Clay, Ge, Zhaoxuan, Glaser, Benjamin, Wei, Shaolou, Schaper, Mikro, LeBeau, James M., Olson, Greg B., Hart, A. John
Additively manufactured (AM) structural components with complex geometries and tailored properties at voxel-size resolution will lead to significant leap in performance in various critical engineering applications. However, at each voxel, we first ne
Externí odkaz:
http://arxiv.org/abs/2406.17457
Publikováno v:
A&A 689, A19 (2024)
The splashback radius was proposed as a physically motivated boundary of clusters as it sets the limit between the infalling and the orbitally dominated regions. However, galaxy clusters are complex objects connected to filaments of the cosmic web fr
Externí odkaz:
http://arxiv.org/abs/2403.18648
Autor:
Ye, Kevin, Sadeghi, Ida, Xu, Michael, Van Sambeek, Jack, Cai, Tao, Dong, Jessica, Kothari, Rishabh, LeBeau, James M., Jaramillo, R.
We demonstrate synthesis of BaZr(S,Se)3 chalcogenide perovskite alloys by selenization of BaZrS3 thin films. The anion-exchange process produces films with tunable composition and band gap without changing the orthorhombic perovskite crystal structur
Externí odkaz:
http://arxiv.org/abs/2403.09016
Autor:
Zhu, Menglin, Xu, Michael, Yun, Yu, Wu, Liyan, Shafir, Or, Gilgenbach, Colin, Martin, Lane W., Grinberg, Ilya, Spanier, Jonathan E., LeBeau, James M.
Switchable order parameters in ferroic materials are essential for functional electronic devices, yet disruptions of the ordering can take the form of planar boundaries or defects that exhibit distinct properties. Characterizing the structure of thes
Externí odkaz:
http://arxiv.org/abs/2403.04904
Autor:
Qiao, Siqi, Driesch, Nils von den, Chen, Xi, Trellenkamp, Stefan, Lentz, Florian, Krause, Christoph, Bennemann, Benjamin, Brazda, Thorsten, LeBeau, James M., Pawlis, Alexander
ZnSe and related materials like ZnMgSe and ZnCdSe are promising II-VI host materials for optically mediated quantum information technology such as single photon sources or spin qubits. Integrating these heterostructures into photonic crystal (PC) cav
Externí odkaz:
http://arxiv.org/abs/2402.15349
The performance of spectral clustering relies on the fluctuations of the entries of the eigenvectors of a similarity matrix, which has been left uncharacterized until now. In this letter, it is shown that the signal $+$ noise structure of a general s
Externí odkaz:
http://arxiv.org/abs/2402.12302