Effect of ferroelectric domains on electric properties of single layer graphene

P. Zelenovskii; K. Romanyuk; R. Vidyasagar; A. Akhmatkhanov; P. Zhao; V. Ya Shur; A. L. Kholkin

doi:10.1080/00150193.2019.1574669

Effect of ferroelectric domains on electric properties of single layer graphene

P. Zelenovskii^*
, K. Romanyuk
, R. Vidyasagar
, A. Akhmatkhanov
, P. Zhao
, V. Ya Shur
, A. L. Kholkin

^*Corresponding author for this work

Ural Federal University
University of Aveiro
Labfer Ltd.
Zhejiang University

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Ferroelectric materials with tailored domain structures are promising “smart” substrates providing additional degrees of functionality for the graphene-based devices. We demonstrate the effect of periodical domain structure in lithium niobate substrate on the electrical properties of graphene studied by Raman spectroscopy. The spatial variations of the charge carriers and Fermi levels in graphene corresponding to oppositely polarized domains have been elucidated. The observed effects are supposed to be driven by the lateral component of electric field at the surface related to the gradient of spontaneous polarization. The five orders of magnitude decay of charge density in graphene is due to screening of depolarization field.

Original language	English
Pages (from-to)	93-101
Number of pages	9
Journal	Ferroelectrics
Volume	542
Issue number	1
DOIs	https://doi.org/10.1080/00150193.2019.1574669
Publication status	Published - 4 Apr 2019
Externally published	Yes

Keywords

confocal Raman microscopy
domain structure
electric fields
ferroelectrics
Graphene
PPLN

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10.1080/00150193.2019.1574669

Cite this

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title = "Effect of ferroelectric domains on electric properties of single layer graphene",

abstract = "Ferroelectric materials with tailored domain structures are promising “smart” substrates providing additional degrees of functionality for the graphene-based devices. We demonstrate the effect of periodical domain structure in lithium niobate substrate on the electrical properties of graphene studied by Raman spectroscopy. The spatial variations of the charge carriers and Fermi levels in graphene corresponding to oppositely polarized domains have been elucidated. The observed effects are supposed to be driven by the lateral component of electric field at the surface related to the gradient of spontaneous polarization. The five orders of magnitude decay of charge density in graphene is due to screening of depolarization field.",

keywords = "confocal Raman microscopy, domain structure, electric fields, ferroelectrics, Graphene, PPLN",

author = "P. Zelenovskii and K. Romanyuk and R. Vidyasagar and A. Akhmatkhanov and P. Zhao and Shur, \{V. Ya\} and Kholkin, \{A. L.\}",

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T1 - Effect of ferroelectric domains on electric properties of single layer graphene

AU - Zelenovskii, P.

AU - Romanyuk, K.

AU - Vidyasagar, R.

AU - Akhmatkhanov, A.

AU - Zhao, P.

AU - Shur, V. Ya

AU - Kholkin, A. L.

PY - 2019/4/4

Y1 - 2019/4/4

N2 - Ferroelectric materials with tailored domain structures are promising “smart” substrates providing additional degrees of functionality for the graphene-based devices. We demonstrate the effect of periodical domain structure in lithium niobate substrate on the electrical properties of graphene studied by Raman spectroscopy. The spatial variations of the charge carriers and Fermi levels in graphene corresponding to oppositely polarized domains have been elucidated. The observed effects are supposed to be driven by the lateral component of electric field at the surface related to the gradient of spontaneous polarization. The five orders of magnitude decay of charge density in graphene is due to screening of depolarization field.

AB - Ferroelectric materials with tailored domain structures are promising “smart” substrates providing additional degrees of functionality for the graphene-based devices. We demonstrate the effect of periodical domain structure in lithium niobate substrate on the electrical properties of graphene studied by Raman spectroscopy. The spatial variations of the charge carriers and Fermi levels in graphene corresponding to oppositely polarized domains have been elucidated. The observed effects are supposed to be driven by the lateral component of electric field at the surface related to the gradient of spontaneous polarization. The five orders of magnitude decay of charge density in graphene is due to screening of depolarization field.

KW - confocal Raman microscopy

KW - domain structure

KW - electric fields

KW - ferroelectrics

KW - Graphene

KW - PPLN

UR - https://www.scopus.com/pages/publications/85068789594

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DO - 10.1080/00150193.2019.1574669

M3 - Article

AN - SCOPUS:85068789594

SN - 0015-0193

VL - 542

SP - 93

EP - 101

JO - Ferroelectrics

JF - Ferroelectrics

IS - 1

ER -

Effect of ferroelectric domains on electric properties of single layer graphene

Abstract

Keywords

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