Projects per year
Abstract
2D ferroelectric materials provide a promising platform for the electrical control of quantum states. In particular, due to their 2D nature, they are suitable for influencing the quantum states of deposited molecules via the proximity effect. Here, electrically controllable molecular states in phthalocyanine molecules adsorbed on monolayer ferroelectric material SnTe are reported. The strain and ferroelectric order in SnTe are found to create a transition between two distinct orbital orders in the adsorbed phthalocyanine molecules. By controlling the polarization of the ferroelectric domain using scanning tunneling microscopy (STM), it is successfully demonstrated that orbital order can be manipulated electrically. The results show how ferroelastic coupling in 2D systems allows for control of molecular states, providing a starting point for ferroelectrically switchable molecular orbital ordering and ultimately, electrical control of molecular magnetism.
Original language | English |
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Article number | 2206456 |
Number of pages | 7 |
Journal | Advanced Materials |
Volume | 35 |
Issue number | 9 |
Early online date | 16 Dec 2022 |
DOIs | |
Publication status | Published - 2 Mar 2023 |
MoE publication type | A1 Journal article-refereed |
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Dive into the research topics of 'Control of Molecular Orbital Ordering Using a van der Waals Monolayer Ferroelectric'. Together they form a unique fingerprint.Projects
- 5 Active
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ADaM: Artificial designer materials
Liljeroth, P., Amini, M., Choi, S., Gonzalez Herrero, H., Kipnis, A. & Otero Fumega, A.
01/01/2022 → 31/12/2023
Project: Academy of Finland: Other research funding
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Engineering fractional quantum matter in twisted van der Waals materials
Lado, J., Hyart, T., Kumar, P. & Koch, R.
01/09/2020 → 31/08/2023
Project: Academy of Finland: Other research funding
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Engineering fractional quantum matter in twisted van der Waals materials
01/09/2020 → 31/08/2025
Project: Academy of Finland: Other research funding
Equipment
Press/Media
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Aalto University: Controlling Quantum States In Individual Molecules With Two-Dimensional Ferroelectrics
10/01/2023
1 item of Media coverage
Press/Media: Media appearance