Charge-state dynamics in electrostatic force spectroscopy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00470931" target="_blank" >RIV/68378271:_____/16:00470931 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/0957-4484/27/27/274005" target="_blank" >http://dx.doi.org/10.1088/0957-4484/27/27/274005</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0957-4484/27/27/274005" target="_blank" >10.1088/0957-4484/27/27/274005</a>

Result language

angličtina

Original language name

Charge-state dynamics in electrostatic force spectroscopy

Original language description

We present a numerical model that allows us to study the response of an oscillating probe in electrostatic force spectroscopy to charge switching in quantum dots at various time scales. The model provides more insight into the behavior of frequency shift and dissipated energy under different scanning conditions when measuring a temporarily charged quantum dot on a surface. Namely, we analyze the dependence of the frequency shift, the dissipated energy, and their fluctuations on the resonance frequency of the tip and on the electron tunneling rates across the tip-quantum dot and quantum dot-sample junctions. We discuss two complementary approaches to simulating the charge dynamics, a stochastic and a deterministic one. In addition, we derive analytic formulas valid for small amplitudes, describing relations between the frequency shift, dissipated energy, and the characteristic rates driving the charging and discharging processes.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GA14-02079S" target="_blank" >GA14-02079S: Control of single electron charge states in molecules on surfaces</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Name of the periodical

Nanotechnology

ISSN

0957-4484

e-ISSN

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Volume of the periodical

27

Issue of the periodical within the volume

27

Country of publishing house

GB - UNITED KINGDOM

Number of pages

13

Pages from-to

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UT code for WoS article

000377493700005

EID of the result in the Scopus database

2-s2.0-84975037766