Andre Schleife
Education Director
Research Areas
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Service on Campus Committees
- Education Director, Illinois MRSEC, 2023-current
Research Statement
Materials are real-world realizations of quantum mechanics and a platform for novel states that emerge depending on relative coupling of charge, spin, and lattice degrees of freedom, and external excitations. My group (http://schleife.matse.illinois.edu) uses advanced computation to understand and predict this intricate interplay for materials in electronic and energy applications and under extreme conditions. We study electronic excitations, triggered by interaction with electromagnetic and particle radiation, and subsequent femto-second relaxation processes. These are of high fundamental scientific interest, critically important for materials characterization, and determine efficiency of materials in electronic, optical, and photonic applications. We have extensive expertise with first-principles simulations, based on density func- tional, many-body perturbation, and time-dependent density functional theory, of hard materials, modern semiconductors, and nanomaterials. We also use this insight to advance the theoretical framework and its numerical implementation, positioning us well in an exciting and modern field.
Research Areas
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Selected Articles in Journals
- Jiuyu Sun, Cheng-Wei Lee, Alina Kononov, Andr?chleife, Carsten A. Ullrich, "Real-time exciton dynamics with time-dependent density-functional theory", Phys. Rev. Lett. 127, 077401 (2021)
- Xiao Zhang, Sebastian Achilles, Jan Winkelmann, Roland Haas, Andr?chleife, Edoardo Di Napoli, "Solving the Bethe-Salpeter equation on massively parallel architectures", Computer Physics Communications 267, 108081 (2021)
- Alina Kononov, Andr?chleife, "Anomalous stopping and charge transfer in proton-irradiated graphene", Nano Lett. 21, 4816-4822 (2021)
- Leveillee, J., Schleife, A., "Free-electron effects on optical absorption of hybrid perovskite CH3NH3PbI3 from first principles" Phys. Rev. B 100, 035205 (2019)
- Lee, C.-W., Schleife, A., "Hot-electron mediated ion diffusion in semiconductors for ion-beam nanostructuring" Nano Lett. 19, 3939-3947 (2019)
- Kang, K., Kononov, A., Lee, C.-W., Leveillee, J. A., Shapera, E. P., Zhang, X., Schleife, A. "Pushing the frontiers of modeling excited electronic states and dynamics to accelerate materials engineering and design" Comput. Mater. Sci. 160, 207-216 (2019)
- Lee, C. - W. & Schleife, A. "Novel diffusion mechanism in the presence of excited electrons?: Ultrafast electron?ion dynamics in proton-irradiated magnesium oxide" Mater. Today 21, 925-927 (2018)
- Schleife, A., Kanai, Y. & Correa, A. A., "Accurate atomistic first-principles calculations of electronic stopping" Phys. Rev. B 91, 014306 (2015)
- R? C. & Schleife, A. "Photoemission spectra and effective masses of n- and p-type oxide semiconductors from first principles: ZnO, CdO, SnO2, MnO, and NiO" Phys. Status Solidi A 211, 74-81 (2014)
- Varley, J. B., Schleife, A., Janotti, A. and Van de Walle, C. G. "Ambipolar doping in SnO" Appl. Phys. Lett. 103, 082118 (2013)
- Schleife, A., Rinke, P., Bechstedt, F. and Van de Walle, C. G. "Enhanced Optical Absorption Due to Symmetry Breaking in TiO_2(1-x) S_2x Alloys" J. Phys. Chem. C 117, 4189?4193 (2013)
- Schleife, A. and Bechstedt, F. "Ab initio description of quasiparticle band structures and optical near-edge absorption of transparent conducting oxides" J. Mater. Res. 27, 2180?2189 (2012)
- de Carvalho, L. Cl?io, Schleife, A., Furthm? J. and Bechstedt, F. "Distribution of cations in wurtzitic In_x Ga_1-x N and In_x Al_1-x N alloys: Consequences for energetics and quasiparticle electronic structures" Phys. Rev. B 85, 115121 (2012)
- K? S., Schleife, A., H?ing, B. and Bechstedt, F. "Energetics and approximate quasiparticle electronic structure of low-index surfaces of SnO_2" Phys. Rev. B 86, 075320 (2012)
- Rinke, P., Schleife, A., Kioupakis, E., Janotti, A., R? C., Bechstedt, F., Scheffler, M. and Van de Walle, C.G. "First-Principles Optical Spectra for F Centers in MgO" Phys. Rev. Lett. 108, 126404 (2012)
- Schleife, A., Draeger, E. W., Kanai, Y. and Correa, A. A. "Plane-wave pseudopotential implementation of explicit integrators for time-dependent Kohn-Sham equations in large-scale simulations" J. Chem. Phys. 137, 22A546 (2012)
- Schleife, A., R? C., Fuchs, F., Hannewald, K. and Bechstedt, F. "Optical Absorption in Degenerately Doped Semiconductors: Mott Transition or Mahan Excitons?" Phys. Rev. Lett. 107, 236405 (2011)
- Schleife, A., R? C., Fuchs, F., Furthm? J. and Bechstedt, F. "Optical and energy-loss spectra of MgO, ZnO, and CdO from ab initio many-body calculations" Phys. Rev. B 80, 035112 (2009)
- Schleife, A., Fuchs, F., Furthm? J. and Bechstedt, F. "First-principles study of ground- and excited-state properties of MgO, ZnO, and CdO polymorphs" Phys. Rev. B 73, 245212 (2006)
Research Honors
- 2023 Dean's Award for Excellence in Research (2/14/2023)
Public Service Honors
- 2024 College award for Sustained Excellence in Diversity, Equity and Inclusion (2/27/2024)