Tailored Structural and Functional Properties in Low Dimensional Nanostructures

Low-dimensional nanostructures, characterized by their reduced dimensionality (one or two dimensions), exhibit unique properties absent in bulk materials due to quantum confinement effects and enhanced surface-to-volume ratios. These nanostructures can be fabricated through top-down methods, such as lithography, or bottom-up methods, such as self-assembly. Unique structural reconstructions often occur in these nanostructures. Microscopic studies, particularly at the atomic level, provide a unique perspective to unravel the fundamental mechanisms that govern these nanostructures, guiding the design of novel devices with exceptional performance.

 

Selected Publications

1. H. Wang, G. Laskin, W. He, H. Boschker, M. Yi, J. Mannhart, P. A van Aken. Tunable Magnetic Anisotropy in Patterned SrRuO3 Quantum Structures: Competition between Lattice Anisotropy and Oxygen Octahedral Rotation. Adv. Funct. Mater. 2022, 2108475. (https://doi.org/10.1002/adfm.202108475)

2. H. Wang, X. Jiang, Y. Wang, R. W. Stark, P. A. van Aken, J. Mannhart, H. Boschker. Direct observation of huge flexoelectric polarization around crack tips. Nano Lett. 2019, 20(1), 88. (https://pubs.acs.org/doi/full/10.1021/acs.nanolett.9b03176)

3. H. Wang, V. Srot, B. Fenk, G. Laskin, J. Mannhart, P. A van Aken. An optimized TEM specimen preparation method of quantum nanostructures. Micron. 2021, 140, 102979. (https://doi.org/10.1016/j.micron.2020.102979)

4. G. Laskin, H. Wang, H. Boschker, W. Braun, V. Srot, P. A. van Aken, J. Mannhart. Magnetic Properties of Epitaxially Grown SrRuO3 Nanodots. Nano let. 2019, 19(2), 1131. (https://pubs.acs.org/doi/10.1021/acs.nanolett.8b04459)

5. V. Harbola, Y. Wu#, H. Wang, S. Smink, S. Parks, P. A. van Aken, J. Mannhart. Self-Assembly of Nanocrystalline Structures from Freestanding Oxide Membranes. Adv. Mater. 2023, 2210989. (https://doi.org/10.1002/adma.202210989)