Electronic properties of phosphorene and graphene nanoribbons with edge vacancies in magnetic field

Smotlacha, J.; Pinčák, Richard

doi:10.1016/j.physleta.2018.01.019

Cited by 6 publications

(3 citation statements)

References 27 publications

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“…It is a balancing phenomenon and dislocation extension depends on the Poisson's ratio. The slip dislocation starts moving in response to the applied shear stress, and the ratio of the in-plane to out-of-plane stress sets the critical stress limit [25][26][27]. The slip ratio is given by 1) , in which σ ⊥ and σ are respectively the out-plane and in-plane stress components.…”

Section: Signal Processing Studies: Impulse Interaction With Glnrmentioning

confidence: 99%

Surface Interactions of Transonic Shock Waves with Graphene-Like Nanoribbons

et al. 2020

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Graphene-like nanoribbons (GLNRs) were fabricated (length—20 μm; width—2 μm) and subjected to blast-like pulsed pressure >1.5 GPa (pulse speed ≈1 Mach, impulse duration, ≈µs) to examine the amount of absorption. GLNRs prepared by the chemical vapor deposition technique via controlled biomass combustion were subjected to investigate the structure–property characteristics using microspectroscopic techniques. Following this, GLNRs were employed to high strain rate (HSR) studies with the help of the technique known as split Hopkinson pressure bar (SHPB) to evaluate numerous dynamic parameters. The parameters were extracted from variations in the stress and strain rates. Their analysis provided insight into the damping response of blast energy within GLNRs. By and large, the impact generated modified the microstructure, exhibiting modifications in the number of layers, conjugated loops, and dynamic disorder. Signal processing analysis carried out for incident and transmitted impulse pressure revealed an interaction mechanism of shock wave with GLNR. Details are presented.

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Section: Signal Processing Studies: Impulse Interaction With Glnrmentioning

confidence: 99%

Surface Interactions of Transonic Shock Waves with Graphene-Like Nanoribbons

et al. 2020

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“…Several studies using molecular dynamics (MD) simulations [ 20 , 21 , 22 , 23 , 24 ], atomic-scale finite element method [ 25 ] and experimental measurements [ 26 , 27 ] have been used to investigate the mechanical properties of GNR along the ar and zz directions. A study of the electronic properties of zigzag graphene nanoribbons with constructed edges representing pentagonal and heptagonal defects has been presented by Pincak et al [ 28 ], whereas the effects of edge vacancies on the electronic properties of zigzag nanoribbons have been addressed by Smotlacha and Pincak [ 29 ]. Although the electronic properties of CGNR have been extensively studied [ 2 , 15 ], little attention has been paid to its mechanical properties, which are also very important in device design, fabrication and operation.…”

Section: Introductionmentioning

confidence: 99%

Atomistic Modelling of Size-Dependent Mechanical Properties and Fracture of Pristine and Defective Cove-Edged Graphene Nanoribbons

Damasceno

Mesquita

2020

Nanomaterials

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Cove-edged graphene nanoribbons (CGNR) are a class of nanoribbons with asymmetric edges composed of alternating hexagons and have remarkable electronic properties. Although CGNRs have attractive size-dependent electronic properties their mechanical properties have not been well understood. In practical applications, the mechanical properties such as tensile strength, ductility and fracture toughness play an important role, especially during device fabrication and operation. This work aims to fill a gap in the understanding of the mechanical behaviour of CGNRs by studying the edge and size effects on the mechanical response by using molecular dynamic simulations. Pristine graphene structures are rarely found in applications. Therefore, this study also examines the effects of topological defects on the mechanical behaviour of CGNR. Ductility and fracture patterns of CGNR with divacancy and topological defects are studied. The results reveal that the CGNR become stronger and slightly more ductile as the width increases in contrast to normal zigzag GNR. Furthermore, the mechanical response of defective CGNRs show complex dependency on the defect configuration and distribution, while the direction of the fracture propagation has a complex dependency on the defect configuration and position. The results also confirm the possibility of topological design of graphene to tailor properties through the manipulation of defect types, orientation, and density and defect networks.

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“…В [17] рассмотрено возникновение атомных вакансий в краевой структуре зигзагообразных фосфореновых и графеновых наноуглеродов. Для различных концентраций этих краевых вакансий исследовалось их влияние на металлические свойства.…”

Section: Introductionunclassified

Резонансное Поглощение Электромагнитного Излучения В Монослое Фосфорена

Карпунин¹,

Маргулис²

2019

Журнал Технической Физики

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The absorption coefficient of the electromagnetic radiation in a phosphorene single layer placed in a magnetic field is found. A degenerate and nondegenerate electron gas is considered. The resonant dependences of the absorptance on the radiation frequency and applied magnetic field are found. Taking into account electron scattering at an ionized impurity leads to oscillation dependences of the absorption coefficient on the radiation frequency and external magnetic field. The resonance character of the absorption curve is shown. The conditions of resonances and position of resonance peaks are found.

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Electronic properties of phosphorene and graphene nanoribbons with edge vacancies in magnetic field

Cited by 6 publications

References 27 publications

Surface Interactions of Transonic Shock Waves with Graphene-Like Nanoribbons

Surface Interactions of Transonic Shock Waves with Graphene-Like Nanoribbons

Atomistic Modelling of Size-Dependent Mechanical Properties and Fracture of Pristine and Defective Cove-Edged Graphene Nanoribbons

Резонансное Поглощение Электромагнитного Излучения В Монослое Фосфорена

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