Principles and simulations of high-resolution STM imaging with a flexible tip apex

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00477533" target="_blank" >RIV/68378271:_____/17:00477533 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/17:10371120

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevB.95.045407" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.95.045407</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.95.045407" target="_blank" >10.1103/PhysRevB.95.045407</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Principles and simulations of high-resolution STM imaging with a flexible tip apex

Popis výsledku v původním jazyce

We present a robust but still efficient simulation approach for high-resolution scanning tunneling microscopy (STM) with a flexible tip apex showing sharp submolecular features. The approach takes into account the electronic structure of the sample and tip as well as relaxation of the tip apex. We validate our model by achieving good agreement with various experimental images which allows us to explain the origin of several observed features. Namely, we have found that the high-resolution STM mechanism consists of standard STM imaging, convolving electronic states of the sample and the tip apex orbital structure, with the contrast heavily distorted by the relaxation of the flexible apex caused by interaction with the substrate.

Název v anglickém jazyce

Principles and simulations of high-resolution STM imaging with a flexible tip apex

Popis výsledku anglicky

We present a robust but still efficient simulation approach for high-resolution scanning tunneling microscopy (STM) with a flexible tip apex showing sharp submolecular features. The approach takes into account the electronic structure of the sample and tip as well as relaxation of the tip apex. We validate our model by achieving good agreement with various experimental images which allows us to explain the origin of several observed features. Namely, we have found that the high-resolution STM mechanism consists of standard STM imaging, convolving electronic states of the sample and the tip apex orbital structure, with the contrast heavily distorted by the relaxation of the flexible apex caused by interaction with the substrate.

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/GC14-16963J" target="_blank" >GC14-16963J: Studium interních vlastností jednotlivých molekul pomocí Kelvinovy sondy a mikroskopu atomárních sil</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Physical Review B

ISSN

2469-9950

e-ISSN

—

Svazek periodika

95

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

—

Kód UT WoS článku

000391311100004

EID výsledku v databázi Scopus

2-s2.0-85010809746