On-surface synthesis and characterization of [7]triangulene quantum ring

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F21%3A00541655" target="_blank" >RIV/61388955:_____/21:00541655 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/21:00541655 RIV/61989592:15640/21:73607260

Výsledek na webu

<a href="https://doi.org/10.1021/acs.nanolett.0c04627" target="_blank" >https://doi.org/10.1021/acs.nanolett.0c04627</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.nanolett.0c04627" target="_blank" >10.1021/acs.nanolett.0c04627</a>

Jazyk výsledku

angličtina

Název v původním jazyce

On-surface synthesis and characterization of [7]triangulene quantum ring

Popis výsledku v původním jazyce

Herein, we report the synthesis of an open-shell [7]triangulene quantum ring ([7]TQR) molecule on Au(111) through the surface-assisted cyclodehydrogenation of a rationally designed kekulene derivative. Bond-resolved scanning tunneling microscopy (BR-STM) unambiguously imaged the molecular backbone of a single [7]TQR with a triangular zigzag edge topology, which can be viewed as [7]triangulene decorated with a coronene-like antidot in the center. Additionally, dI/dV mapping reveals that both inner and outer zigzag edges contribute to the edge-localized and spin-polarized electronic states of [7]TQR. Both experimental results and spin-polarized density functional theory calculations indicate that [7]TQR retains its open-shell septuple ground state (S = 3) on Au(111). This work demonstrates a new route for the design of high-spin graphene quantum rings for future quantum devices.

Název v anglickém jazyce

On-surface synthesis and characterization of [7]triangulene quantum ring

Popis výsledku anglicky

Herein, we report the synthesis of an open-shell [7]triangulene quantum ring ([7]TQR) molecule on Au(111) through the surface-assisted cyclodehydrogenation of a rationally designed kekulene derivative. Bond-resolved scanning tunneling microscopy (BR-STM) unambiguously imaged the molecular backbone of a single [7]TQR with a triangular zigzag edge topology, which can be viewed as [7]triangulene decorated with a coronene-like antidot in the center. Additionally, dI/dV mapping reveals that both inner and outer zigzag edges contribute to the edge-localized and spin-polarized electronic states of [7]TQR. Both experimental results and spin-polarized density functional theory calculations indicate that [7]TQR retains its open-shell septuple ground state (S = 3) on Au(111). This work demonstrates a new route for the design of high-spin graphene quantum rings for future quantum devices.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/GJ18-18940Y" target="_blank" >GJ18-18940Y: Masivně paralelní metody tenzorových sítí pro silně korelovanou kvantovou chemii</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Nano Letters

ISSN

1530-6984

e-ISSN

1530-6992

Svazek periodika

21

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

861-867

Kód UT WoS článku

000611082000116

EID výsledku v databázi Scopus

2-s2.0-85098764378