Temperature dependence of the 2D mode of an isotopically labelledgraphene double layer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00462199" target="_blank" >RIV/68378271:_____/16:00462199 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388955:_____/16:00462199

Výsledek na webu

<a href="http://dx.doi.org/10.1002/pssb.201600221" target="_blank" >http://dx.doi.org/10.1002/pssb.201600221</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/pssb.201600221" target="_blank" >10.1002/pssb.201600221</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Temperature dependence of the 2D mode of an isotopically labelledgraphene double layer

Popis výsledku v původním jazyce

We have investigated the temperature evolution (100–300 K) of the 2D mode of isotopically labelled double layer graphene using in situ Raman spectro-microscopy. The strain values obtained from the 2D mode analysis were confronted with those obtained from the correlation analysis of the G and 2D modes. We find that the strain landscape derived from the 2D mode is comparable with the one obtained from the G and 2D modes with similar temperature evolution for both layers. However; the magnitude of the strain evaluated by the two different approaches does not fully coincide, which can be attributed to the admixture of uniaxial strain to the dominant biaxial component. In addition, we observed that the 2D is also sensitive to the strain inhomogeneities at nanometre scale. The 2D mode thus serves as a valuable complementary tool for detection of the character of strain in single and double layer graphene down to helium temperatures.

Název v anglickém jazyce

Temperature dependence of the 2D mode of an isotopically labelledgraphene double layer

Popis výsledku anglicky

We have investigated the temperature evolution (100–300 K) of the 2D mode of isotopically labelled double layer graphene using in situ Raman spectro-microscopy. The strain values obtained from the 2D mode analysis were confronted with those obtained from the correlation analysis of the G and 2D modes. We find that the strain landscape derived from the 2D mode is comparable with the one obtained from the G and 2D modes with similar temperature evolution for both layers. However; the magnitude of the strain evaluated by the two different approaches does not fully coincide, which can be attributed to the admixture of uniaxial strain to the dominant biaxial component. In addition, we observed that the 2D is also sensitive to the strain inhomogeneities at nanometre scale. The 2D mode thus serves as a valuable complementary tool for detection of the character of strain in single and double layer graphene down to helium temperatures.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Physica Status Solidi B-Basic Solid State Physics

ISSN

0370-1972

e-ISSN

—

Svazek periodika

253

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

5

Strana od-do

2342-2346

Kód UT WoS článku

000390339000008

EID výsledku v databázi Scopus

2-s2.0-84978858681