Dielectric function of epitaxial quasi-freestanding monolayer
graphene on Si-face 6H-SiC in a broad spectral range

J 2023

Dielectric function of epitaxial quasi-freestanding monolayer graphene on Si-face 6H-SiC in a broad spectral range

TIKUIŠIS, Kristupas Kazimieras, Adam DUBROKA, Klára UHLÍŘOVÁ, Florian SPECK, Thomas SEYLLER et. al.

Základní údaje

Originální název

Dielectric function of epitaxial quasi-freestanding monolayer graphene on Si-face 6H-SiC in a broad spectral range

Autoři

TIKUIŠIS, Kristupas Kazimieras, Adam DUBROKA (203 Česká republika, domácí), Klára UHLÍŘOVÁ, Florian SPECK, Thomas SEYLLER, Maria LOSURDO, Milan ORLITA (garant) a Martin VEIS

Vydání

Physical Review Materials, American Physical Society, 2023, 2475-9953

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10302 Condensed matter physics

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 3.400 v roce 2022

Kód RIV

RIV/00216224:14310/23:00131669

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1103/PhysRevMaterials.7.044201

UT WoS

000973400000002

Klíčová slova anglicky

Dielectric properties; Optical conductivity; Permittivity; Topological phases of mattervan; van Hove singularity

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 12. 9. 2023 11:00, Mgr. Marie Šípková, DiS.

Anotace

V originále

We present a study of the optical properties of quasi-freestanding epitaxial monolayer graphene grown on the Si face of 6H-SiC (0001) in a broad spectral range from midinfrared to ultraviolet. After growth, the sample was intercalated by hydrogen in order to ensure that no dangling bonds between the substrate and graphene layer remain. Spectral dependence of the dielectric function of graphene was parametrized based on spectroscopic ellipsometry fits. We show that, from the viewpoint of optical properties, the investigated sample is very close to exfoliated graphene. We provide information about the spectral dependence of the complex dielectric function of quasi-freestanding graphene in a broad spectral range.

Citovat

TIKUIŠIS, Kristupas Kazimieras, Adam DUBROKA, Klára UHLÍŘOVÁ, Florian SPECK, Thomas SEYLLER, Maria LOSURDO, Milan ORLITA a Martin VEIS. Dielectric function of epitaxial quasi-freestanding monolayer graphene on Si-face 6H-SiC in a broad spectral range. Physical Review Materials. American Physical Society, 2023, roč. 7, č. 4, s. 1-7. ISSN 2475-9953. Dostupné z: https://dx.doi.org/10.1103/PhysRevMaterials.7.044201.

@article{2310037,
   author = {Tikuišis, Kristupas Kazimieras and Dubroka, Adam and Uhlířová, Klára and Speck, Florian and Seyller, Thomas and Losurdo, Maria and Orlita, Milan and Veis, Martin},
   article_number = {4},
   doi = {http://dx.doi.org/10.1103/PhysRevMaterials.7.044201},
   keywords = {Dielectric properties; Optical conductivity; Permittivity; Topological phases of mattervan; van Hove singularity},
   language = {eng},
   issn = {2475-9953},
   journal = {Physical Review Materials},
   title = {Dielectric function of epitaxial quasi-freestanding monolayer graphene on Si-face 6H-SiC in a broad spectral range},
   url = {https://doi.org/10.1103/PhysRevMaterials.7.044201},
   volume = {7},
   year = {2023}
}

TY  - JOUR
ID  - 2310037
AU  - Tikuišis, Kristupas Kazimieras - Dubroka, Adam - Uhlířová, Klára - Speck, Florian - Seyller, Thomas - Losurdo, Maria - Orlita, Milan - Veis, Martin
PY  - 2023
TI  - Dielectric function of epitaxial quasi-freestanding monolayer graphene on Si-face 6H-SiC in a broad spectral range
JF  - Physical Review Materials
VL  - 7
IS  - 4
SP  - 1-7
EP  - 1-7
PB  - American Physical Society
SN  - 24759953
KW  - Dielectric properties
KW  - Optical conductivity
KW  - Permittivity
KW  - Topological phases of mattervan
KW  - van Hove singularity
UR  - https://doi.org/10.1103/PhysRevMaterials.7.044201
N2  - We present a study of the optical properties of quasi-freestanding epitaxial monolayer graphene grown on the Si face of 6H-SiC (0001) in a broad spectral range from midinfrared to ultraviolet. After growth, the sample was intercalated by hydrogen in order to ensure that no dangling bonds between the substrate and graphene layer remain. Spectral dependence of the dielectric function of graphene was parametrized based on spectroscopic ellipsometry fits. We show that, from the viewpoint of optical properties, the investigated sample is very close to exfoliated graphene. We provide information about the spectral dependence of the complex dielectric function of quasi-freestanding graphene in a broad spectral range.
ER  -

TIKUIŠIS, Kristupas Kazimieras, Adam DUBROKA, Klára UHLÍŘOVÁ, Florian SPECK, Thomas SEYLLER, Maria LOSURDO, Milan ORLITA a Martin VEIS. Dielectric function of epitaxial quasi-freestanding monolayer graphene on Si-face 6H-SiC in a broad spectral range. \textit{Physical Review Materials}. American Physical Society, 2023, roč.~7, č.~4, s.~1-7. ISSN~2475-9953. Dostupné z: https://dx.doi.org/10.1103/PhysRevMaterials.7.044201.

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