ABOUT
We are an Interdisciplinary Research Group, working at the Institute of Scientific Computing and the Dresden Center of Computational Materials Science of TU-Dresden. We develop mesoscale models to study material properties comprehensively, predict/explain experimental behaviors, and investigate the complexities of crystalline materials. This research is carried out with the aid of numerical simulations and state-of-the-art computational techniques.
The research activities illustrated here started a few years ago carried out by the PI and co-workers. They merged into the 3MS group in early 2021 with funding from the DFG Emmy Noether Programme.
LATEST NEWS
Oct. 7th, 2021
New paper in arXiv on PFC Dislocation Dynamics
Some milestones of research on PFC description on defect dynamics are now reported in the preprint "A phase field crystal theory of the kinematics and dynamics of dislocation lines" available in arXiv
Sept. 22nd, 2021
Paper Published in Scientific Report
The work entitled "Faceting of Si and Ge crystals grown on deeply patterned Si substrates in the kinetic regime: phase-field modelling and experiments" has been published in Scientific Report within the research activity of the EU-OpenFET project microSPIRE
Sept. 17th, 2021
Picture exhibited at "Imaging Science" - Altana Gallery
A Picture ("Tribute to Keith Hering") featuring some of the group's research will be part of the exhibition “Imaging Science - Die Schönheit der Wissenschaft” Altana Gallery-Görges Bau (TUD - University Gallery of TUD). Vernissage 17.09.2021, Exhibition open until 22.10.2021.
Sept. 15th, 2021
Welcome to Vidar, Visiting PhD Student
Vidar Skogvoll, Ph.D student at Oslo university will be visiting the Institute of Scientific Computing to work closely with us on phase-field crystal modeling and simulations. Welcome!
Sept. 2nd, 2021
Talk @ SemiconNano2021
The work on Continuum modeling and simulation of solid-state dewetting, including recent theoretical developments and application (see also NARCISO EU project) has been presented at the SemiconNano meeting 2021.
RESEARCH
PROJECTS
A Mesoscale framework for the modeling of defects and interfaces in crystals
DFG Project (Emmy Noether Programme) - 2021-2026. Group Role: PI, PhD Students
This project addresses the mesoscale modeling of crystalline systems. It builds on the phase-field crystal (PFC) model and its amplitude expansion (APFC), which provide convenient coarse-grained descriptions of crystalline structures. It aims at i) delivering novel theoretical tools that bridge micro- and macroscopic features while studying crystals accounting for real material properties, ii) overcoming limitations of current state-of-the-art theoretical approaches in this field through new and hybrid approaches, iii) enabling applications to technology-relevant crystalline systems and related open problems in materials science.
NAtuRal instability of semiConductors thIn SOlid films for sensing and photonic applications - NARCISO
EU FET-Open Project - 2019-2022. Group Role: Research partner as IWR
NARCISO "NAtuRal instability of semiConductors thIn SOlid films for sensing and photonic applications"is an interdisciplinary project merging physics, chemistry, material science, fluid dynamics, and photonics with a high potential for applications and industrial scale-up of the relevant results. We propose to exploit the natural instability of thin solid films (solid state dewetting of silicon and germanium, SSD) to form complex patterns and nano-architectures (e.g. monocrystalline atomically-smooth structures, disordered hyperuniform metamaterials) that cannot be implemented with conventional methods.
Micro-crystals Single Photon InfraREd detectors – µSPIRE
EU FET-Open Project - 2017-2021. Group Role: Research partner as IWR
µSPIRE aims at establishing a technological platform for homo- and hetero- structure based photonic and electronic devices using the self-assembling of epitaxial crystals on patterned Si substrates. Emerging micro-electronic and photonic devices strongly require the integration on Si of a variety of semiconducting materials such as Ge, GaAs, GaN and SiC, in order to add novel functionalities to the Si platform. µSPIRE pursues this goal employing a novel deposition approach, which we termed vertical hetero-epitaxy (VHE), optimizied with the aid of simulations. VHE exploits the patterning of conventional Si substrates, in combination with epitaxial deposition, to attain the self-assembly of arrays of Ge and GaAs epitaxial micro-crystals elongated in the vertical direction, featuring structural and electronic properties unparalleled by “conventional” epitaxial growth.
ACTIVE COLLABORATIONS
Ken R. Elder - Oakland Univeristy, USA ■ David J. Srolovitz, Jian Han - City University of Hong Kong ■ Marco Abbarchi, Isabelle Berbezier - IM2NP, Aix-Marseille Universite', France ■ Steven M. Wise - The University of Tennessee, USA ■ Francesco Montalenti, Roberto Bergamaschini - University of Milano-Bicocca, Italy ■ Giovanni Isella, Monica Bollani - LNESS, Politecnico di Milano, Italy ■ Luiza Angheluta - University of Oslo, Norway ■ Jorge Vinals - University of Minnesota, USA ■ Zhi-Feng Huang - Wayne State University, USA ■ Tapio Ala-Nissila - Aalto University, Espoo, Finland
RECENT PUBLICATIONS
2021
V. Skogvoll, L. Angheluta, A. Skaugen, M. Salvalaglio, J. Viñals
A phase field crystal theory of the kinematics and dynamics of dislocation lines
M. Albani, R. Bergamaschini, A. Barzaghi, et al.
Faceting of Si and Ge crystals grown on deeply patterned Si substrates in the kinetic regime
Z. Chehadi, M. Bouabdellaoui, M. Bochet-Modaresialam et al.
Scalable disordered hyperuniform architectures via nano-imprint lithography of metal oxides
M. Salvalaglio, D. J. Srolovitz, J. Han
Disconnection-mediated Migration of Interfaces in Microstructues: II. diffuse interface simulations
arXiv:2103.09689. Submitted.
J. Han, D. J. Srolovitz, M. Salvalaglio
Disconnection-mediated Migration of Interfaces in Microstructures: I. continuum model
arXiv:2103.09688. Submitted.
J. B. Claude, M. Bouabdellaoui, J. Wenger, M. Bollani, M. Salvalaglio, M. Abbarchi
Germanium-based, disordered hyperuniform nanoarchitectures by ion beam impact
Submitted.
M. Salvalaglio, A. Voigt, Z.-F. Huang, K. R. Elder
Mesoscale Defect Motion in Binary Systems: Effects of Compositional Strain and Cottrell Atmospheres
M. Salvalaglio, M. Selch, A. Voigt, S. Wise
Doubly Degenerate Diffuse Interface Models of Anisotropic Surface Diffusion
M. Salvalaglio,A. Voigt, S. Wise
2020
M. Salvalaglio, M. Bouabdellaoui, M. Bollani, et al.
Hyperuniform monocrystalline structures by spinodal solid-state dewetting
A. Barzaghi, S. Firoozabadi, M. Salvalaglio et al.
Self-assembly of nanovoids in Si micro-crystals epitaxially grown on deeply patterned substrates
C.L. Manganelli, M. Virgilio, O. Skibitzki et al.
Temperature dependence of strain-shift coefficient in epitaxial Ge/Si(001): a comprehensive analysis
M. Salvalaglio, L. Angheluta, Z.-F. Huang et al.
A coarse-grained phase-field crystal model of plastic motion
A,Benali, J. B. Claude, S. Checcucci et al.
Flexible photonic based on dielectric antennas
CONTACTS
Dr. Marco Salvalaglio,
Group Leader
Visitor Address, IWR
Barmerbau, B 237,
Zellescher Weg 25, 01217 Dresden, Germany
Visitor Address, DCMS
Hallwachsstraße 3,
01069 Dresden, Germany
Postal Address:
Technische Universität Dresden
Institut für Wissenschaftliches Rechnen
Helmholtzstr. 10
01069 Dresden
Tel.: +49 351 463-35657
Fax: +49 351 463-37096
