Effects of graphene defects on Co cluster nucleation and intercalation

Wen Yan Xu; Li Huang; Yan De Que; Xiao Lin; Ye Liang Wang; Shi Xuan Du; Hong Jun Gao

doi:10.1088/1674-1056/23/8/088108

Effects of graphene defects on Co cluster nucleation and intercalation

Wen Yan Xu, Li Huang, Yan De Que, Xiao Lin^*, Ye Liang Wang, Shi Xuan Du, Hong Jun Gao

^*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

Four kinds of defects are observed in graphene grown on Ru (0001) surfaces. After cobalt deposition at room temperature, the cobalt nanoclusters are preferentially located at the defect position. By annealing at 530°C, cobalt atoms intercalate at the interface of Graphene/Ru (0001) through the defects. Further deposition and annealing increase the sizes of intercalated Co islands. This provides a method of controlling the arrangement of cobalt nanoclusters and also the density and the sizes of intercalated cobalt islands, which would find potential applications in catalysis industries, magnetism storage, and magnetism control in future information technology.

Original language	English
Article number	088108
Journal	Chinese Physics B
Volume	23
Issue number	8
DOIs	https://doi.org/10.1088/1674-1056/23/8/088108
Publication status	Published - 1 Aug 2014
Externally published	Yes

Keywords

cobalt
defects
graphene
intercalation
scanning tunneling microscopy

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10.1088/1674-1056/23/8/088108

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title = "Effects of graphene defects on Co cluster nucleation and intercalation",

abstract = "Four kinds of defects are observed in graphene grown on Ru (0001) surfaces. After cobalt deposition at room temperature, the cobalt nanoclusters are preferentially located at the defect position. By annealing at 530°C, cobalt atoms intercalate at the interface of Graphene/Ru (0001) through the defects. Further deposition and annealing increase the sizes of intercalated Co islands. This provides a method of controlling the arrangement of cobalt nanoclusters and also the density and the sizes of intercalated cobalt islands, which would find potential applications in catalysis industries, magnetism storage, and magnetism control in future information technology.",

keywords = "cobalt, defects, graphene, intercalation, scanning tunneling microscopy",

author = "Xu, {Wen Yan} and Li Huang and Que, {Yan De} and Xiao Lin and Wang, {Ye Liang} and Du, {Shi Xuan} and Gao, {Hong Jun}",

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doi = "10.1088/1674-1056/23/8/088108",

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TY - JOUR

T1 - Effects of graphene defects on Co cluster nucleation and intercalation

AU - Xu, Wen Yan

AU - Huang, Li

AU - Que, Yan De

AU - Lin, Xiao

AU - Wang, Ye Liang

AU - Du, Shi Xuan

AU - Gao, Hong Jun

PY - 2014/8/1

Y1 - 2014/8/1

N2 - Four kinds of defects are observed in graphene grown on Ru (0001) surfaces. After cobalt deposition at room temperature, the cobalt nanoclusters are preferentially located at the defect position. By annealing at 530°C, cobalt atoms intercalate at the interface of Graphene/Ru (0001) through the defects. Further deposition and annealing increase the sizes of intercalated Co islands. This provides a method of controlling the arrangement of cobalt nanoclusters and also the density and the sizes of intercalated cobalt islands, which would find potential applications in catalysis industries, magnetism storage, and magnetism control in future information technology.

AB - Four kinds of defects are observed in graphene grown on Ru (0001) surfaces. After cobalt deposition at room temperature, the cobalt nanoclusters are preferentially located at the defect position. By annealing at 530°C, cobalt atoms intercalate at the interface of Graphene/Ru (0001) through the defects. Further deposition and annealing increase the sizes of intercalated Co islands. This provides a method of controlling the arrangement of cobalt nanoclusters and also the density and the sizes of intercalated cobalt islands, which would find potential applications in catalysis industries, magnetism storage, and magnetism control in future information technology.

KW - cobalt

KW - defects

KW - graphene

KW - intercalation

KW - scanning tunneling microscopy

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DO - 10.1088/1674-1056/23/8/088108

M3 - Article

AN - SCOPUS:84905453178

SN - 1674-1056

VL - 23

JO - Chinese Physics B

JF - Chinese Physics B

IS - 8

M1 - 088108

ER -

Effects of graphene defects on Co cluster nucleation and intercalation

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Keywords

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