Real-space investigation of polarons in hematite Fe2O3
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10492134" target="_blank" >RIV/00216208:11320/24:10492134 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/24:00601798
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=XjP-ReCnBz" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=XjP-ReCnBz</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1126/sciadv.adp7833" target="_blank" >10.1126/sciadv.adp7833</a>
Alternative languages
Result language
angličtina
Original language name
Real-space investigation of polarons in hematite Fe2O3
Original language description
In polarizable materials, electronic charge carriers interact with the surrounding ions, leading to quasiparticle behavior. The resulting polarons play a central role in many materials properties including electrical transport, interaction with light, surface reactivity, and magnetoresistance, and polarons are typically investigated indirectly through these macroscopic characteristics. Here, noncontact atomic force microscopy (nc-AFM) is used to directly image polarons in Fe2O3 at the single quasiparticle limit. A combination of Kelvin probe force microscopy (KPFM) and kinetic Monte Carlo (KMC) simulations shows that the mobility of electron polarons can be markedly increased by Ti doping. Density functional theory (DFT) calculations indicate that a transition from polaronic to metastable free-carrier states can play a key role in migration of electron polarons. In contrast, hole polarons are significantly less mobile, and their hopping is hampered further by trapping centers.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Science Advances
ISSN
2375-2548
e-ISSN
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Volume of the periodical
10
Issue of the periodical within the volume
44
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
eadp7833
UT code for WoS article
001345832200018
EID of the result in the Scopus database
2-s2.0-85208290715