Unconventional Electromechanical Response in Ferrocene-Assisted Gold Atomic Chain
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10503683" target="_blank" >RIV/00216208:11320/25:10503683 - isvavai.cz</a>
Výsledek na webu
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=TKvn0J0ZpC" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=TKvn0J0ZpC</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.nanolett.5c02915" target="_blank" >10.1021/acs.nanolett.5c02915</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Unconventional Electromechanical Response in Ferrocene-Assisted Gold Atomic Chain
Popis výsledku v původním jazyce
Atomically thin metallic chains serve as pivotal systems for studying quantum transport, with their conductance strongly linked to the orbital picture. We report an unusual electromechanical response in Au/ferrocene/Au junctions, manifested as tilted "Z"- and "V"-shaped features with more than an order-of-magnitude conductance change upon stretching at cryogenic temperatures, a striking deviation from the flat, decaying, or occasionally increasing profiles typically observed in metallic or molecular junctions. This response emerges during the formation of a ferrocene-assisted atomic gold chain in a mechanically controllable break junction setup, enabled by direct metal-organometallic bonding in the absence of anchoring groups. Density functional calculations reveal that molecular tilting within the chain modulates orbital overlap and transmission spectra, driving the observed conductance evolution. These findings identify metallocene as a distinct class of molecular systems with strong mechanical-electronic coupling, opening pathways to engineer nanoscale devices through the interplay of orbital hybridization and mechanical deformation.
Název v anglickém jazyce
Unconventional Electromechanical Response in Ferrocene-Assisted Gold Atomic Chain
Popis výsledku anglicky
Atomically thin metallic chains serve as pivotal systems for studying quantum transport, with their conductance strongly linked to the orbital picture. We report an unusual electromechanical response in Au/ferrocene/Au junctions, manifested as tilted "Z"- and "V"-shaped features with more than an order-of-magnitude conductance change upon stretching at cryogenic temperatures, a striking deviation from the flat, decaying, or occasionally increasing profiles typically observed in metallic or molecular junctions. This response emerges during the formation of a ferrocene-assisted atomic gold chain in a mechanically controllable break junction setup, enabled by direct metal-organometallic bonding in the absence of anchoring groups. Density functional calculations reveal that molecular tilting within the chain modulates orbital overlap and transmission spectra, driving the observed conductance evolution. These findings identify metallocene as a distinct class of molecular systems with strong mechanical-electronic coupling, opening pathways to engineer nanoscale devices through the interplay of orbital hybridization and mechanical deformation.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Návaznosti výsledku
Projekt
<a href="/cs/project/GA22-22419S" target="_blank" >GA22-22419S: Molekulární spintronika: řízení spin-orbitálních polí</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Nano Letters
ISSN
1530-6984
e-ISSN
1530-6992
Svazek periodika
25
Číslo periodika v rámci svazku
36
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
8
Strana od-do
13511-13518
Kód UT WoS článku
001563595300001
EID výsledku v databázi Scopus
2-s2.0-105015401411