Localized phenomena in Quantum matter Heterostructures

Quantum matter heterostructures refer to the combination of different quantum materials, such as complex oxide materials and transition metal dichalcogenides, into layered assemblies. The complex interplay between the degrees of freedom leads to exotic electronic states that do not exist in the individual materials alone, especially at the heterointerfaces. These heterojunctions can be fabricated by a variety of methods, notably heteroepitaxy and mechanical stacking. By engineering and studying localised effects at the interfaces and within the layers, researchers aim to uncover new physical properties and mechanisms in heterojunctions created by different routes. Insights from these studies are expected to drive technological advances and enable the design of superior electronic devices.

 

Selected Publications

1. H. Wang, V. Harbola, Y. Wu, P. A. van Aken, J. Mannhart. Interface Design Beyond Epitaxy: Oxide Heterostructures Comprising Symmetry forbidden Interfaces. Adv. Mater. 2024, 2405065. (https://doi.org/10.1002/adma.202405065)

2. H. Wang, J. Zhang, C. Shen, C. Yang, K. Kuester, U. Starke, H. Zhang, D. Huang, P. A. van Aken, H. Takag. Stacking-selective self-intercalation of epitaxial Nb1+xSe2 films. Nat. Commun. 2024, 15(1), 2541. (https://doi.org/10.1002/adma.202405065)

3. H. Wang, V. Srot, X. Jiang, M. Yi, Y. Wang, H. Boschker, R. Merkle, R. W. Stark, J. Mannhart, P. A. van Aken. Probing Charge Accumulation at SrMnO3/SrTiO3 Heterointerfaces via Advanced Electron Microscopy and Spectroscopy. ACS Nano 2020, 14(10), 12697. (https://pubs.acs.org/doi/10.1021/acsnano.0c01545)