About us

Our research is situated in the field of electronic structure of condensed matter with current foci on the topics of nanostructures, low-dimensional materials, electronic interaction phenomena, and multi-scale modelling.

Along with the investigation of highlighted material systems in close cooperation with experiments, we are active in theoretical method developments.

Vision:  Understanding and design of complex quantum materials.

We are developing unified theoretical approaches to the structural, electronic and optical properties of complex materials accounting for atomistic details and interactions on equal footing. In this way, we aim to lay the basis for the understanding and the design of materials where target properties are controlled by electronic interactions and structural complexity at the same time.

Group Members

 

Prof. Dr. Tim Wehling Group head 0421-218-62039 .img@.img
Dr. Erik van Loon Post Doc 0421-218-62041 .img@.img
Dr. habil. Dmitry Ryndyk Post Doc 0421-218-62337 .img@.img
Dr. Malte Schüler Post Doc 0421-218-62033 .img@.img
Dr. Bin Shao Post Doc 0421-218-62033 .img@.img
Jose Pizarro Post Doc 0421-218-62035 .img@.img
Jan Berges Doctoral Student 0421-218-62036 .img@.img
Christina Steinke Doctoral Student 0421-218-62039 .img@.img
Edin Kapetanovic Doctoral Student 0421-218-62037 .img@.img
Daniel Ceglinski Master Student 0421-218-62037 .img@.img
Tobias Kessler Master Student 0421-218-62037 .img@.img
Arne Schobert Master Student 0421-218-62036
Niklas Witt Master Student 0421-218-62033 .img@.img
Klaus Bowe Technician 0421-218-62046 .img@.img
Sarah Farley Secretary 0421-218-620 .img@.img

 

Publications

Selected recent publications

Competing Coulomb and electron–phonon interactions in NbS2

Erik van Loon, Malte Rösner, Gunnar Schönhoff, Mikhail Katsnelson, Tim Wehling; npj Quantum Materials 3 (1), 32 (2018)

First-order metal-insulator transitions in the extended Hubbard model due to self-consistent screening of the effective interaction

Malte Schüler, Erik van Loon, Mikhail Katsnelson, Tim Wehling; Phys. Rev. B 97, 165135 (2018)

Exciton fission in monolayer transition metal dichalcogenide semiconductors

Alexander Steinhoff, Matthias Florian, Malte Rösner, Gunnar Schönhoff, Tim Wehling, Frank Jahnke; Nature Communications 8, 1166 (2017)

Two-dimensional heterojunctions from nonlocal manipulations of the interactions

Malte Rösner, Christina Steinke, Michael Lorke, Christopher Gies, Frank Jahnke, Tim Wehling; Nano letters 16, 2322 (2016)

List of publications

111 entries « 1 of 4 »

2018

M Roesner, RE Groenewald, G Schoenhoff, J Berges, S Haas, TO Wehling

Plasmonic Superconductivity in Layered Materials

arXiv preprint arXiv:1803.04576, 2018.

M Schüler, EGCP van Loon, MI Katsnelson, TO Wehling

First-order metal-insulator transitions in the extended Hubbard model due to self-consistent screening of the effective interaction

Physical Review B, 97 (16), pp. 165135, 2018.

Erik GCP van Loon, Malte Rösner, Gunnar Schönhoff, Mikhail I Katsnelson, Tim O Wehling

Competing Coulomb and electron--phonon interactions in NbS 2

npj Quantum Materials, 3 (1), pp. 32, 2018.

Fabian Arnold, Jonas Warmuth, Matteo Michiardi, Jan Fikáček, Marco Bianchi, Jin Hu, Zhiqiang Mao, Jill Miwa, Udai Raj Singh, Martin Bremholm, others

Electronic structure of Fe1. 08Te bulk crystals and epitaxial FeTe thin films on Bi2Te3

Journal of Physics: Condensed Matter, 30 (6), pp. 065502, 2018.

Matthias Florian, Malte Hartmann, Alexander Steinhoff, Julian Klein, Alexander W Holleitner, Jonathan J Finley, Tim O Wehling, Michael Kaniber, Christopher Gies

The dielectric impact of layer distances on exciton and trion binding energies in van der Waals heterostructures

Nano letters, 18 (4), pp. 2725–2732, 2018.

A Steinhoff, TO Wehling, M Rösner

Frequency-dependent substrate screening of excitons in atomically thin transition metal dichalcogenide semiconductors

arXiv preprint arXiv:1804.01352, 2018.

E Kamil, J Berges, G Schönhoff, M Rösner, M Schüler, G Sangiovanni, TO Wehling

Electronic structure of single layer 1T-NbSe2: interplay of lattice distortions, non-local exchange, and Mott--Hubbard correlations

Journal of Physics: Condensed Matter, 30 (32), pp. 325601, 2018.

D Erben, A Steinhoff, C Gies, G Schönhoff, TO Wehling, F Jahnke

Excitation-induced transition to indirect band gaps in atomically thin transition-metal dichalcogenide semiconductors

Physical Review B, 98 (3), pp. 035434, 2018.

Bin Shao, Andreas Eich, Charlotte Sanders, Arlette S Ngankeu, Marco Bianchi, Philip Hofmann, Alexander A Khajetoorians, Tim O Wehling

Pseudodoping of Metallic Two-Dimensional Materials by The Supporting Substrates

arXiv preprint arXiv:1807.00756, 2018.

Philip Klement, Christina Steinke, Sangam Chatterjee, Tim O Wehling, Martin Eickhoff

Effects of the Fermi level energy on the adsorption of O2 to monolayer MoS2

2D Materials, 5 (4), pp. 045025, 2018.

Knut Müller-Caspary, Martial Duchamp, Malte Rösner, Vadim Migunov, Florian Winkler, Hao Yang, Martin Huth, Robert Ritz, Martin Simson, Sebastian Ihle, others

Atomic-scale quantification of charge densities in two-dimensional materials

Physical Review B, 98 (12), pp. 121408, 2018.

M Schüler, O E Peil, G J Kraberger, R Pordzik, M Marsman, G Kresse, T O Wehling, M Aichhorn

Charge self-consistent many-body corrections using optimized projected localized orbitals

Journal of Physics: Condensed Matter, 30 (47), pp. 475901, 2018.

2017

N Néel, C Steinke, TO Wehling, J Kröger

Inelastic electron tunneling into graphene nanostructures on a metal surface

Physical Review B, 95 (16), pp. 161410, 2017.

Christina Steinke, Daniel Mourad, Malte Rösner, Michael Lorke, Christopher Gies, Frank Jahnke, Gerd Czycholl, Tim O Wehling

Noninvasive control of excitons in two-dimensional materials

Physical Review B, 96 (4), pp. 045431, 2017.

Alexander Steinhoff, Matthias Florian, Malte Rösner, Gunnar Schönhoff, Tim Oliver Wehling, Frank Jahnke

Exciton fission in monolayer transition metal dichalcogenide semiconductors

Nature communications, 8 (1), pp. 1166, 2017.

Edbert J Sie, Alexander Steinhoff, Christopher Gies, Chun Hung Lui, Qiong Ma, Malte Rösner, Gunnar Schönhoff, Frank Jahnke, Tim O Wehling, Y-H Lee, others

Observation of exciton redshift--blueshift crossover in monolayer WS2

Nano letters, 17 (7), pp. 4210–4216, 2017.

Bin Shao, Malte Schüler, Gunnar Schönhoff, Thomas Frauenheim, Gerd Czycholl, Tim O Wehling

Optically and Electrically Controllable Adatom Spin--orbital Dynamics in Transition Metal Dichalcogenides

Nano letters, 17 (11), pp. 6721–6726, 2017.

Nicholas F Quackenbush, Hanjong Paik, Megan E Holtz, Matthew J Wahila, Jarrett A Moyer, Stefan Barthel, Tim O Wehling, Dario A Arena, Joseph C Woicik, David A Muller, others

Reducing orbital occupancy in VO 2 suppresses Mott physics while Peierls distortions persist

Physical Review B, 96 (8), pp. 081103, 2017.

Malte Schüler, Stefan Barthel, Tim Wehling, Michael Karolak, Angelo Valli, Giorgio Sangiovanni

Realistic theory of electronic correlations in nanoscopic systems

The European Physical Journal Special Topics, 226 (11), pp. 2615–2640, 2017.

2016

Sumanta Bhandary, Malte Schüler, Patrik Thunström, Igor di Marco, Barbara Brena, Olle Eriksson, Tim Wehling, Biplab Sanyal

Correlated electron behavior of metal-organic molecules: Insights from density functional theory combined with many-body effects using exact diagonalization

Physical Review B, 93 (15), pp. 155158, 2016.

M Schüler, S Barthel, M Karolak, AI Poteryaev, AI Lichtenstein, MI Katsnelson, G Sangiovanni, TO Wehling

Many-body effects on Cr (001) surfaces: An LDA+ DMFT study

Physical Review B, 93 (19), pp. 195115, 2016.

RE Groenewald, M Rösner, G Schönhoff, S Haas, TO Wehling

Valley plasmonics in transition metal dichalcogenides

Physical Review B, 93 (20), pp. 205145, 2016.

M Rosner, Christina Steinke, Michael Lorke, Christopher Gies, Frank Jahnke, Tim Oliver Wehling

Two-dimensional heterojunctions from nonlocal manipulations of the interactions

Nano letters, 16 (4), pp. 2322–2327, 2016.

Alexander Steinhoff, Matthias Florian, Malte Rösner, Michael Lorke, Tim O Wehling, Christopher Gies, Frank Jahnke

Nonequilibrium carrier dynamics in transition metal dichalcogenide semiconductors

2D Materials, 3 (3), pp. 031006, 2016.

Martin Vondráček, Lasse Cornils, Jan Minár, Jonas Warmuth, Matteo Michiardi, C'inthia Piamonteze, Lucas Barreto, JA Miwa, Marco Bianchi, Ph Hofmann, others

Nickel: the time-reversal symmetry conserving partner of iron on a chalcogenide topological insulator

Physical review B, 94 (16), pp. 161114, 2016.

Søren Ulstrup, Malte Schüler, Marco Bianchi, Felix Fromm, Christian Raidel, Thomas Seyller, Tim Wehling, Philip Hofmann

Manifestation of nonlocal electron-electron interaction in graphene

Physical Review B, 94 (8), pp. 081403, 2016.

G Schönhoff, M Rösner, RE Groenewald, S Haas, TO Wehling

Interplay of screening and superconductivity in low-dimensional materials

Physical Review B, 94 (13), pp. 134504, 2016.

EGCP van Loon, M Schüler, MI Katsnelson, TO Wehling

Capturing nonlocal interaction effects in the Hubbard model: Optimal mappings and limits of applicability

Physical Review B, 94 (16), pp. 165141, 2016.

TO Wehling

Pseudodoping of metallic two-dimensional materials

arXiv preprint arXiv:1609.00220, 2016.

B Sachs, TO Wehling, MI Katsnelson, AI Lichtenstein

Midgap states and band gap modification in defective graphene/h-BN heterostructures

Physical Review B, 94 (22), pp. 224105, 2016.

111 entries « 1 of 4 »