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Park, Jae Whan
원자제어 저차원 전자계 연구단
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Artificial relativistic molecules

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Title
Artificial relativistic molecules
Author(s)
Jae Whan Park; Hyo Sung Kim; Brumme, Thomas; Heine, Thomas; Han Woong Yeom
Subject
SPIN-ORBIT, ; ELECTRONIC-STRUCTURE, ; APPROXIMATION, ; MONOLAYERS, ; CHAINS, ; ORDER, ; AU
Publication Date
2020-02
Journal
NATURE COMMUNICATIONS, v.11, no.1, pp.815
Publisher
NATURE PUBLISHING GROUP
Abstract
© The Author(s) 2020 NATURE PUBLISHING GROUP We fabricate artificial molecules composed of heavy atom lead on a van der Waals crystal. Pb atoms templated on a honeycomb charge-order superstructure of IrTe2 form clusters ranging from dimers to heptamers including benzene-shaped ring hexamers. Tunneling spectroscopy and electronic structure calculations reveal the formation of unusual relativistic molecular orbitals within the clusters. The spin-orbit coupling is essential both in forming such Dirac electronic states and stabilizing the artificial molecules by reducing the adatom-substrate interaction. Lead atoms are found to be ideally suited for a maximized relativistic effect. This work initiates the use of novel two-dimensional orderings to guide the fabrication of artificial molecules of unprecedented properties
URI
https://pr.ibs.re.kr/handle/8788114/8373
DOI
10.1038/s41467-020-14635-z
ISSN
2041-1723
Appears in Collections:
Center for Artificial Low Dimensional Electronic Systems(원자제어 저차원 전자계 연구단) > 1. Journal Papers (저널논문)
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