Z3 charge density wave of silicon atomic chains on a vicinal silicon surface

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00558816" target="_blank" >RIV/68378271:_____/22:00558816 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0333948" target="_blank" >https://hdl.handle.net/11104/0333948</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsnano.2c00972" target="_blank" >10.1021/acsnano.2c00972</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Z3 charge density wave of silicon atomic chains on a vicinal silicon surface

Popis výsledku v původním jazyce

An ideal one-dimensional electronic system is formed along atomic chains on Au-decorated vicinal silicon surfaces, but the nature of its low-temperature phases has been puzzling for last two decades. Here, we unambiguously identify the low-temperature structural distortion of this surface using high-resolution atomic force microscopy and scanning tunneling microscopy. The most important structural ingredient of this surface, the step-edge Si chains, are found to be strongly buckled, every third atom down, forming trimer unit cells. This observation is consistent with the recent model of rehybridized dangling bonds and rules out the antiferromagnetic spin ordering proposed earlier. The spectroscopy and electronic structure calculation indicate a charge density wave insulator with a Z3 topology, making it possible to exploit topological phases and excitations.

Název v anglickém jazyce

Z3 charge density wave of silicon atomic chains on a vicinal silicon surface

Popis výsledku anglicky

An ideal one-dimensional electronic system is formed along atomic chains on Au-decorated vicinal silicon surfaces, but the nature of its low-temperature phases has been puzzling for last two decades. Here, we unambiguously identify the low-temperature structural distortion of this surface using high-resolution atomic force microscopy and scanning tunneling microscopy. The most important structural ingredient of this surface, the step-edge Si chains, are found to be strongly buckled, every third atom down, forming trimer unit cells. This observation is consistent with the recent model of rehybridized dangling bonds and rules out the antiferromagnetic spin ordering proposed earlier. The spectroscopy and electronic structure calculation indicate a charge density wave insulator with a Z3 topology, making it possible to exploit topological phases and excitations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/GX20-13692X" target="_blank" >GX20-13692X: 1D molekulární řetízky na površích</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

ACS Nano

ISSN

1936-0851

e-ISSN

1936-086X

Svazek periodika

16

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

6598-6604

Kód UT WoS článku

000813109400001

EID výsledku v databázi Scopus

2-s2.0-85128623375