From positive to negative magnetoresistance in graphene with increasing disorder

Yang Bo Zhou; Bing Hong Han; Zhi Min Liao; Han Chun Wu; Da Peng Yu

doi:10.1063/1.3595681

From positive to negative magnetoresistance in graphene with increasing disorder

Yang Bo Zhou, Bing Hong Han, Zhi Min Liao^*, Han Chun Wu, Da Peng Yu

^*Corresponding author for this work

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

71 Citations (Scopus)

Abstract

Artificial disorder was introduced gradually into monolayer graphene by controlling Ga⁺ ion irradiation and the corresponding electronic transport properties regulated by gate voltage, source-drain voltage, temperature, and magnetic field were studied experimentally. An unsaturated positive magnetoresistance (MR) up to 100% at ∼5 T was observed in as-fabricated graphene, while there is significant negative MR in disordered graphene. This phenomenon was attributed to the monocrystalline breaking and crystallite-boundary scattering in disordered graphene.

Original language	English
Article number	222502
Journal	Applied Physics Letters
Volume	98
Issue number	22
DOIs	https://doi.org/10.1063/1.3595681
Publication status	Published - 30 May 2011
Externally published	Yes

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title = "From positive to negative magnetoresistance in graphene with increasing disorder",

abstract = "Artificial disorder was introduced gradually into monolayer graphene by controlling Ga+ ion irradiation and the corresponding electronic transport properties regulated by gate voltage, source-drain voltage, temperature, and magnetic field were studied experimentally. An unsaturated positive magnetoresistance (MR) up to 100% at ∼5 T was observed in as-fabricated graphene, while there is significant negative MR in disordered graphene. This phenomenon was attributed to the monocrystalline breaking and crystallite-boundary scattering in disordered graphene.",

author = "Zhou, {Yang Bo} and Han, {Bing Hong} and Liao, {Zhi Min} and Wu, {Han Chun} and Yu, {Da Peng}",

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AU - Zhou, Yang Bo

AU - Han, Bing Hong

AU - Liao, Zhi Min

AU - Wu, Han Chun

AU - Yu, Da Peng

PY - 2011/5/30

Y1 - 2011/5/30

N2 - Artificial disorder was introduced gradually into monolayer graphene by controlling Ga+ ion irradiation and the corresponding electronic transport properties regulated by gate voltage, source-drain voltage, temperature, and magnetic field were studied experimentally. An unsaturated positive magnetoresistance (MR) up to 100% at ∼5 T was observed in as-fabricated graphene, while there is significant negative MR in disordered graphene. This phenomenon was attributed to the monocrystalline breaking and crystallite-boundary scattering in disordered graphene.

AB - Artificial disorder was introduced gradually into monolayer graphene by controlling Ga+ ion irradiation and the corresponding electronic transport properties regulated by gate voltage, source-drain voltage, temperature, and magnetic field were studied experimentally. An unsaturated positive magnetoresistance (MR) up to 100% at ∼5 T was observed in as-fabricated graphene, while there is significant negative MR in disordered graphene. This phenomenon was attributed to the monocrystalline breaking and crystallite-boundary scattering in disordered graphene.

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DO - 10.1063/1.3595681

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From positive to negative magnetoresistance in graphene with increasing disorder

Abstract

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