Strain‐induced ripples in graphene nanoribbons with clamped edges

Baimova, Julia A.; Dmitriev, Sergey V.; Zhou, Kun

doi:10.1002/pssb.201084224

Cited by 52 publications

(31 citation statements)

References 47 publications

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“…The planar structure of GNRs is deformed by formation of ripples due to an applied uniaxial strain [49,50,51]. Further, molecular dynamics studies have shown that the amplitude and orientation of ripples can be easily controlled by applied strain [52,53]. In addition, the spin polarized first principle calculations have shown that zigzag GNRs are magnetic in nature, whereas armchair GNRs show non-magnetic behaviour [54].…”

Section: Introductionmentioning

confidence: 99%

Graphene nanoribbons under axial compressive and point tensile stresses

Kaur

Sharma

Jindal

et al. 2019

Physica E: Low-dimensional Systems and Nanostructures

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The geometric, electronic and magnetic properties of strained graphene nanoribbons were investigated using spin polarized calculations within the framework of density functional theory. Cases of compressive stress along the longer axis of a nanoribbon and tensile stress at the midpoint and perpendicular to the plane of the nanoribbon were considered. Significant structural changes were observed including the formation of nanoripples. The calculated electronic and magnetic properties strongly depend on the size and shape of nanoribbons. The tunable magnetic properties of strained nanoribbons can be employed for designing magnetic nano-switches.

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Section: Introductionmentioning

confidence: 99%

Graphene nanoribbons under axial compressive and point tensile stresses

Kaur

Sharma

Jindal

et al. 2019

Physica E: Low-dimensional Systems and Nanostructures

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“…This feature means that graphene is very easy to bend and many researchers discuss how to introduce ripples or wrinkles in graphene sheets in a controllable fashion and how to use such corrugations. [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] In fact, wrinkling is a very general physical phenomenon demonstrated by thin sheets and membranes. 24,25 One-or two-dimensional ripples can strongly influence electronic properties of graphene by inducing effective magnetic fields and changing local potentials.…”

Section: Introductionmentioning

confidence: 99%

Unidirectional ripples in strained graphene nanoribbons with clamped edges at zero and finite temperatures

et al. 2012

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Molecular dynamics simulations based on many-body interatomic potentials are conducted to investigate the formation of unidirectional ripples in zigzag and armchair graphene nanoribbons with clamped edges under in-plane uniform strain. The ripple formation is found to be a result of buckling under in-plane membrane forces having compressive and tensile principle components. This study demonstrates that the amplitude and orientation of the unidirectional ripples can be controlled by a change in the components of the applied strain. The ripple wavelength is practically independent of the applied strain but increases with the increasing nanoribbon width. In the study of the temperature effect on strain-induced ripples it was found that with increase in temperature the degree of fluctuation of ripples increases. Ripples with larger formation energy are less affected by thermal fluctuations.

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“…5 and 6 were obtained for an infinite flat graphene sheet from the analysis of its stability and from the calculation of the principal values and principal directions of the membrane forces. Dependencies of the amplitude and wavelength of the ripple on strain for graphene nanoribbon with clamped edges were presented in Baimova et al [2012b] as well as the dependence of the ripple amplitude on the nanoribbon width.…”

Section: Ripplesmentioning

confidence: 99%

Property control by elastic strain engineering: Application to graphene

Baimova

2017

J. Micromech. Mol. Phys.

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Various carbon nanostructures, including graphene, are of great interest nowadays for many applications. It has been shown that graphene has unique physical and mechanical properties and its properties can be controlled by the applied strain. The objective of the present paper is to describe several physical properties of graphene that can be controlled by means of elastic strain engineering. The space of in-plane elastic strain components is divided into regions with different structural configurations and physical properties of graphene. It is shown that a gap in the phonon density of states is observed when graphene is strained close to the appearance of ripples. Sound velocities of unstrained graphene do not depend on the propagation direction but application of strain, apart hydrostatic tension, makes graphene elastically anisotropic. The orientation, amplitude and wavelength of unidirectional ripples in graphene can be controlled by a change in the components of the applied strain.

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Strain‐induced ripples in graphene nanoribbons with clamped edges

Cited by 52 publications

References 47 publications

Graphene nanoribbons under axial compressive and point tensile stresses

Graphene nanoribbons under axial compressive and point tensile stresses

Unidirectional ripples in strained graphene nanoribbons with clamped edges at zero and finite temperatures

Property control by elastic strain engineering: Application to graphene

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