Photoelectric Detection of Nitrogen-Vacancy Centers Magnetic Resonances in Diamond: Role of Charge Exchanges with Other Optoelectrically Active Defects

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21460%2F22%3A00355089" target="_blank" >RIV/68407700:21460/22:00355089 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1002/qute.202100153" target="_blank" >https://doi.org/10.1002/qute.202100153</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/qute.202100153" target="_blank" >10.1002/qute.202100153</a>

Result language

angličtina

Original language name

Photoelectric Detection of Nitrogen-Vacancy Centers Magnetic Resonances in Diamond: Role of Charge Exchanges with Other Optoelectrically Active Defects

Original language description

The photoelectric detection of nitrogen-vacancy (NV) magnetic resonance (PDMR) in diamond, used for spin state detection and based on reading the photocurrent resulting from NV ionization, offers physical and technical advantages for the development of miniaturized and scalable quantum sensors, as well as solid-state quantum information devices integrated with electronics. Charge exchanges between NV centers and other optoelectrically active defects in diamond are an essential part of the PDMR scheme, impacting the spin-state control and the performances of the photoelectric readout. Through experimental characterization and modeling, processes governing the spin-state contrast, in particular the hole carrier contribution to the photocurrent and the role of acceptor-type defects are discussed. Such acceptor defects can act as traps for free electrons resulting from NV photoionization. Consequently, the hole current can increase at resonance, ultimately leading to an inversion of the sign of PDMR resonances, i.e. to a positive spin contrast. Based on these findings, a method to improve PDMR performances in terms of spin contrast and photoelectric detection rate by selectively ionizing low-energy acceptor defects using a bias red illumination is proposed. This method is shown to lead to a significant improvement of the photoelectric spin detection sensitivity, important for future practical devices.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

21002 - Nano-processes (applications on nano-scale); (biomaterials to be 2.9)

Project

<a href="/en/project/GA20-28980S" target="_blank" >GA20-28980S: Electrically-read quantum diamond sensors for nuclear magnetic resonance and chemical sensing</a><br>

Continuities

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

Publication year

2022

Confidentiality

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

Name of the periodical

Advanced Quantum Technologies

ISSN

2511-9044

e-ISSN

2511-9044

Volume of the periodical

5

Issue of the periodical within the volume

5

Country of publishing house

DE - GERMANY

Number of pages

13

Pages from-to

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UT code for WoS article

000769998600001

EID of the result in the Scopus database

2-s2.0-85126356169