Electronic band structure of 1D pi-d hybridized narrow-gap metal-organic polymers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F22%3A73618780" target="_blank" >RIV/61989592:15640/22:73618780 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21340/23:00367524

Result on the web

<a href="https://pubs.rsc.org/en/content/articlelanding/2023/NR/D2NR05828F" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2023/NR/D2NR05828F</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d2nr05828f" target="_blank" >10.1039/d2nr05828f</a>

Result language

angličtina

Original language name

Electronic band structure of 1D pi-d hybridized narrow-gap metal-organic polymers

Original language description

One-dimensional (1D) metal-organic (MO) nanowires are captivating from fundamental and technological perspectives due to their distinctive magnetic and electronic properties. The solvent-free synthesis of such nanomaterials on catalytic surfaces provides a unique approach for fabricating low-dimensional single-layer materials with atomic precision and low amount of defects. A detailed understanding of the electronic structure of MO polymers such as band gap and dispersive bands is critical for their prospective implementation into nanodevices such as spin sensors or field-effect transistors. Here, we have performed the on-surface reaction of quinoidal ligands with single cobalt atoms (Co-QDI) on a vicinal Au(788) surface in ultra-high vacuum. This procedure promotes the growth and uniaxial alignment of Co-QDI MO chains along the surface atomic steps, while permitting the mapping of their electronic properties with space-averaging angle-resolved photoemission spectroscopy. In the direction parallel to the principal chain axis, a well-defined 1D band structure with weakly dispersive and dispersive bands is observed, confirming a pronounced electron delocalization. Low-temperature scanning tunneling microscopy/spectroscopy delves into the atomically precise structure of the nanowires and elucidates their narrow bandgap. These findings are supported with GW0 band structure calculations showing that the observed electronic bands emanate from the efficient hybridization of Co(3d) and molecular orbitals. Our work paves the way towards a systematic search of similar 1D π-d hybridized MO chains with tunable electronic and magnetic properties defined by the transition or rare earth metal atom of choice.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

21002 - Nano-processes (applications on nano-scale); (biomaterials to be 2.9)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Nanoscale

ISSN

2040-3364

e-ISSN

2040-3372

Volume of the periodical

15

Issue of the periodical within the volume

5

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

2285-2291

UT code for WoS article

000912023200001

EID of the result in the Scopus database

2-s2.0-85146328648