RT Journal Article
T1 Atomically Precise Control of Topological State Hybridization in Conjugated Polymers
A1 Jiménez Martín, Alejandro
A1 Sosnová, Zdenka
A1 Soler, Diego
A1 Mallada, Benjamin
A1 González-Herrero, Héctor
A1 Edalatmanesh, Shayan
A1 Martín León, Nazario
A1 Ecija, David
A1 Jelínek, Pavel
A1 de la Torre, Bruno
AB Realization of topological quantum states in carbon nanostructures has recently emerged as a promising platform for hosting highly coherent and controllable quantum dot spin qubits. However, their adjustable manipulation remains elusive. Here, we report the atomically accurate control of the hybridization level of topologically protected quantum edge states emerging from topological interfaces in bottom-up-fabricated π-conjugated polymers. Our investigation employed a combination of low-temperature scanning tunneling microscopy and spectroscopy, along with high-resolution atomic force microscopy, to effectively modify the hybridization level of neighboring edge states by the selective dehydrogenation reaction of molecular units in a pentacene-based polymer and demonstrate their reversible character. Density functional theory, tight binding, and complete active space calculations for the Hubbard model were employed to support our findings, revealing that the extent of orbital overlap between the topological edge states can be finely tuned based on the geometry and electronic bandgap of the interconnecting region. These results demonstrate the utility of topological edge states as components for designing complex quantum arrangements for advanced electronic devices.
PB ACS
YR 2024
FD 2024-10-15
LK https://hdl.handle.net/20.500.14352/120458
UL https://hdl.handle.net/20.500.14352/120458
LA eng
NO Jiménez-Martín, A.; Sosnová, Z.; Soler, D.; Mallada, B.; González-Herrero, H.; Edalatmanesh, S.; Martín, N.; Écija, D.; Jelínek, P.; De La Torre, B. Atomically Precise Control of Topological State Hybridization in Conjugated Polymers. ACS Nano 2024, 18 (43), 29902–29912. https://doi.org/10.1021/acsnano.4c10357.
NO We acknowledge the Research Infrastructure NanoEnviCz, supported by the Ministry of Education, Youth and Sports of the Czech Republic under Project No. LM2023066. B.T. acknowledges the financial support of Czech Science Foundation (project-23-06781M) and from MCIN/AEI/10.13039/501100011033/ERDF/EU (project-PID2022-140845OB-C64). We appreciate funding from the CzechNanoLab Research Infrastructure supported by MEYS CR (LM2018110) and project GACR no. 23-05486S. We acknowledge the support from the ‘(MAD2D-CM)-IMDEA-Nanociencia’ project funded by Comunidad de Madrid, by the Recovery, Transformation and Resilience Plan, and by NextGenerationEU from the European Union. N.M. acknowledges MICIN of Spain for funding the project PID2020-114653RB-I00. H.G.-H. acknowledges financial support from the Spanish State Research Agency under grant Ramon y Cajal fellowship RYC2021-031050-I.
NO Research Infrastructure NanoEnviCz (Czech Republic)
NO Czech Science Foundation (Czech Republic)
NO CzechNanoLab Research Infrastructure (Czech Republic)
NO Comunidad de Madrid
NO Ministerio de Ciencia, Innovación y Universidad (España)
NO Agencia Estatal de Investigación (España)
DS Docta Complutense
RD 19 ene 2026