Artificial relativistic molecules

被引：5

作者：

Park, Jae Whan ^{[1
]}

Kim, Hyo Sung ^{[1
,2
]}

Brumme, Thomas ^{[3
]}

Heine, Thomas ^{[3
,4
,5
]}

Yeom, Han Woong ^{[1
,2
]}

机构：

[1] Inst for Basic Sci Korea, Ctr Artificial Low Dimens Elect Syst, 77 Cheongam Ro, Pohang 7907884, South Korea

[2] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea

[3] Univ Leipzig, Dept Chem, Leipzig, Germany

[4] Tech Univ Dresden, Fac Chem & Food Chem, Sch Sci, D-01062 Dresden, Germany

[5] Helmholtz Ctr Dresden Rossendorf, Leipzig Res Branch, Inst Resource Ecol, Permoserstr 15, D-04318 Leipzig, Germany

来源：

NATURE COMMUNICATIONS | 2020年 / 11卷 / 01期

关键词：

SPIN-ORBIT; ELECTRONIC-STRUCTURE; APPROXIMATION; MONOLAYERS; CHAINS; ORDER; AU;

D O I：

10.1038/s41467-020-14635-z

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

引用

页数：6

共 44 条

[1] Electronic structure, isomerism, and chemical bonding in B7- and B7 [J].

Alexandrova, AN ;

Boldyrev, AI ;

Zhai, HJ ;

Wang, LS .

JOURNAL OF PHYSICAL CHEMISTRY A, 2004, 108 (16) :3509-3517

[2] Heavy-atom effects on metalloporphyrins and polyhalogenated porphyrins [J].

Azenha, EG ;

Serra, AC ;

Pineiro, M ;

Pereira, MM ;

de Melo, JS ;

Arnaut, LG ;

Formosinho, SJ ;

Gonsalves, AMDR .

CHEMICAL PHYSICS, 2002, 280 (1-2) :177-190

[3] Engineering atomic and molecular nanostructures at surfaces [J].

Barth, JV ;

Costantini, G ;

Kern, K .

NATURE, 2005, 437 (7059) :671-679

[4] PROJECTOR AUGMENTED-WAVE METHOD [J].

BLOCHL, PE .

PHYSICAL REVIEW B, 1994, 50 (24) :17953-17979

[5] Adsorbates in a Box: Titration of Substrate Electronic States [J].

Cheng, Zhihai ;

Wyrick, Jonathan ;

Luo, Miaomiao ;

Sun, Dezheng ;

Kim, Daeho ;

Zhu, Yeming ;

Lu, Wenhao ;

Kim, Kwangmoo ;

Einstein, T. L. ;

Bartels, Ludwig .

PHYSICAL REVIEW LETTERS, 2010, 105 (06)

[6] Chiral solitons in a coupled double Peierls chain [J].

Cheon, Sangmo ;

Kim, Tae-Hwan ;

Lee, Sung-Hoon ;

Yeom, Han Woong .

SCIENCE, 2015, 350 (6257) :182-185

[7] Molecular Borromean rings [J].

Chichak, KS ;

Cantrill, SJ ;

Pease, AR ;

Chiu, SH ;

Cave, GWV ;

Atwood, JL ;

Stoddart, JF .

SCIENCE, 2004, 304 (5675) :1308-1312

[8] Nanoscale manipulation of the Mott insulating state coupled to charge order in 1T-TaS2 [J].

Cho, Doohee ;

Cheon, Sangmo ;

Kim, Ki-Seok ;

Lee, Sung-Hoon ;

Cho, Yong-Heum ;

Cheong, Sang-Wook ;

Yeom, Han Woong .

NATURE COMMUNICATIONS, 2016, 7

[9] Boron nitride nanomesh [J].

Corso, M ;

Auwärter, W ;

Muntwiler, M ;

Tamai, A ;

Greber, T ;

Osterwalder, J .

SCIENCE, 2004, 303 (5655) :217-220

[10] Analysis of the effect of spin-orbit coupling on the electronic structure and excitation spectrum of the Bi22- anion in (K-crypt)2Bi2 on the basis of relativistic electronic structure calculations [J].

Dai, D ;

Whangbo, MH ;

Ugrinov, A ;

Sevov, SC ;

Wang, F ;

Li, LM ;

Villesuzanne, A ;

Alekseyev, AB ;

Liebermann, HP ;

Buenker, RJ .

JOURNAL OF PHYSICAL CHEMISTRY A, 2005, 109 (08) :1675-1683

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