Very large magnetoresistive graphene disk with negative permittivity

Jiahua Zhu; Suying Wei; Neel Haldolaarachchige; Jun He; David P. Young; Zhanhu Guo

doi:10.1039/c1nr11101a

Very large magnetoresistive graphene disk with negative permittivity

Jiahua Zhu, Suying Wei, Neel Haldolaarachchige, Jun He, David P. Young, Zhanhu Guo

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

44 Scopus citations

Abstract

At room temperature a large magnetoresistance (MR) of up to 70% is observed in graphene. Both graphene size and surface functionality influence the MR behavior significantly. The conductivity increases linearly with increasing temperature and a unique negative permittivity over a wide frequency range from 10 ³ to 10 ⁶ Hz is observed at room temperature.

Original language	English
Pages (from-to)	152-156
Number of pages	5
Journal	Nanoscale
Volume	4
Issue number	1
DOIs	https://doi.org/10.1039/c1nr11101a
State	Published - 7 Jan 2012
Externally published	Yes

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title = "Very large magnetoresistive graphene disk with negative permittivity",

abstract = "At room temperature a large magnetoresistance (MR) of up to 70% is observed in graphene. Both graphene size and surface functionality influence the MR behavior significantly. The conductivity increases linearly with increasing temperature and a unique negative permittivity over a wide frequency range from 10 3 to 10 6 Hz is observed at room temperature.",

author = "Jiahua Zhu and Suying Wei and Neel Haldolaarachchige and Jun He and Young, {David P.} and Zhanhu Guo",

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AU - Zhu, Jiahua

AU - Wei, Suying

AU - Haldolaarachchige, Neel

AU - He, Jun

AU - Young, David P.

AU - Guo, Zhanhu

PY - 2012/1/7

Y1 - 2012/1/7

N2 - At room temperature a large magnetoresistance (MR) of up to 70% is observed in graphene. Both graphene size and surface functionality influence the MR behavior significantly. The conductivity increases linearly with increasing temperature and a unique negative permittivity over a wide frequency range from 10 3 to 10 6 Hz is observed at room temperature.

AB - At room temperature a large magnetoresistance (MR) of up to 70% is observed in graphene. Both graphene size and surface functionality influence the MR behavior significantly. The conductivity increases linearly with increasing temperature and a unique negative permittivity over a wide frequency range from 10 3 to 10 6 Hz is observed at room temperature.

UR - http://www.scopus.com/inward/record.url?scp=83455219313&partnerID=8YFLogxK

U2 - 10.1039/c1nr11101a

DO - 10.1039/c1nr11101a

M3 - 文章

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SN - 2040-3364

VL - 4

SP - 152

EP - 156

JO - Nanoscale

JF - Nanoscale

IS - 1

ER -

Very large magnetoresistive graphene disk with negative permittivity

Abstract

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