Bipolar Conductivity in Ferroelectric La:HfZrO Films Full article
Journal |
Applied Physics Letters
ISSN: 0003-6951 , E-ISSN: 1077-3118 |
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Output data | Year: 2021, Volume: 118, Number: 26, Article number : 262903, Pages count : 4 DOI: 10.1063/5.0050748 | ||||||||||||
Tags | Carrier transport; Ferroelectric films; Ferroelectricity; Hafnium compounds; Lanthanum; Random access storage; Silicon; Silicon compounds; X ray photoelectron spectroscopy | ||||||||||||
Authors |
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Affiliations |
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Funding (4)
1 | Russian Foundation for Basic Research | 20-57-12003 (АААА-А20-120012190060-2) |
2 | Ministry of Science and Higher Education of the Russian Federation | 0242-2021-0003 |
3 | European Commission | 780302 H2020-EU.2.1.1. 3eFERRO |
4 | German Research Foundation | 430054035 |
Abstract:
Lanthanum-doped HfZrO is considered as the ferroelectric material for capacitor structures used in one-transistor-one capacitor nonvolatile memory cells for the development of new generation nonvolatile random-access memory. Here, different capacitor structures are characterized by x-ray photoelectron spectroscopy electrically to determine the electron and hole contribution to the conductivity in these capacitor structures. Experiments related to the minority carrier's injection and charge transport from an n-Si and a p-Si substrate into a lanthanum-doped HfZrO layer show that the conductivity is bipolar. Electrons are injected into La:HfZrO from a negatively biased contact, and accordingly, holes are injected from a positive voltage biased electrode.
Cite:
Perevalov T.V.
, Gismatulin A.A.
, Gritsenko V.A.
, Prosvirin I.P.
, Mehmood F.
, Mikolajick T.
, Schroeder U.
Bipolar Conductivity in Ferroelectric La:HfZrO Films
Applied Physics Letters. 2021. V.118. N26. 262903 :1-4. DOI: 10.1063/5.0050748 WOS Scopus РИНЦ
Bipolar Conductivity in Ferroelectric La:HfZrO Films
Applied Physics Letters. 2021. V.118. N26. 262903 :1-4. DOI: 10.1063/5.0050748 WOS Scopus РИНЦ
Files:
Full text from publisher
Dates:
Submitted: | Mar 18, 2021 |
Accepted: | Jun 17, 2021 |
Published print: | Jun 28, 2021 |
Published online: | Jul 2, 2021 |
Identifiers:
Web of science | WOS:000685543100001 |
Scopus | 2-s2.0-85109140939 |
Elibrary | 46863568 |
Chemical Abstracts | 2021:1477175 |
OpenAlex | W3173700912 |