Tunable sign of magnetoresistance in graphene foam – Ecoflex® composite for wearable magnetoelectronic devices

Rizwan Ur Rehman Sagar; Hafiz Imran Ahmad Qazi; Muhammad Husnain Zeb; Florian J. Stadler; Babar Shabbir; Xiaohao Wang; Min Zhang

doi:10.1016/j.matlet.2019.06.066

Tunable sign of magnetoresistance in graphene foam – Ecoflex® composite for wearable magnetoelectronic devices

Rizwan Ur Rehman Sagar, Hafiz Imran Ahmad Qazi, Muhammad Husnain Zeb, Florian J. Stadler, Babar Shabbir, Xiaohao Wang, Min Zhang

Materials Science & Engineering

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

11 Citations (Scopus)

Abstract

Usually, positive magnetoresistance (PMR) is observed in graphene foam (GF) under all temperature and magnetic field range. Herein, large negative magnetoresistance is observed under a temperature range 300–200 K which switches to PMR under a temperature range 200–5 K in graphene foam (GF)-Ecoflex® specimen. The GF-Ecoflex® shows NMR in highly crosslinked specimen, while lightly crosslinked shows PMR at room temperature. This indicates that the sign of magnetoresistance can be controlled by controlling viscoelasticity of Ecoflex® in GF-Ecoflex® specimens, which is very useful for wearable magnetoelectronics.

Original language	English
Pages (from-to)	166-170
Number of pages	5
Journal	Materials Letters
Volume	253
DOIs	https://doi.org/10.1016/j.matlet.2019.06.066
Publication status	Published - 15 Oct 2019

Keywords

Ecoflex®
Graphene foam
Magnetoresistance

Access to Document

10.1016/j.matlet.2019.06.066

Cite this

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title = "Tunable sign of magnetoresistance in graphene foam – Ecoflex{\textregistered} composite for wearable magnetoelectronic devices",

abstract = "Usually, positive magnetoresistance (PMR) is observed in graphene foam (GF) under all temperature and magnetic field range. Herein, large negative magnetoresistance is observed under a temperature range 300–200 K which switches to PMR under a temperature range 200–5 K in graphene foam (GF)-Ecoflex{\textregistered} specimen. The GF-Ecoflex{\textregistered} shows NMR in highly crosslinked specimen, while lightly crosslinked shows PMR at room temperature. This indicates that the sign of magnetoresistance can be controlled by controlling viscoelasticity of Ecoflex{\textregistered} in GF-Ecoflex{\textregistered} specimens, which is very useful for wearable magnetoelectronics.",

keywords = "Ecoflex{\textregistered}, Graphene foam, Magnetoresistance",

author = "Sagar, {Rizwan Ur Rehman} and Qazi, {Hafiz Imran Ahmad} and Zeb, {Muhammad Husnain} and Stadler, {Florian J.} and Babar Shabbir and Xiaohao Wang and Min Zhang",

year = "2019",

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doi = "10.1016/j.matlet.2019.06.066",

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volume = "253",

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journal = "Materials Letters",

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T1 - Tunable sign of magnetoresistance in graphene foam – Ecoflex® composite for wearable magnetoelectronic devices

AU - Sagar, Rizwan Ur Rehman

AU - Qazi, Hafiz Imran Ahmad

AU - Zeb, Muhammad Husnain

AU - Stadler, Florian J.

AU - Shabbir, Babar

AU - Wang, Xiaohao

AU - Zhang, Min

PY - 2019/10/15

Y1 - 2019/10/15

N2 - Usually, positive magnetoresistance (PMR) is observed in graphene foam (GF) under all temperature and magnetic field range. Herein, large negative magnetoresistance is observed under a temperature range 300–200 K which switches to PMR under a temperature range 200–5 K in graphene foam (GF)-Ecoflex® specimen. The GF-Ecoflex® shows NMR in highly crosslinked specimen, while lightly crosslinked shows PMR at room temperature. This indicates that the sign of magnetoresistance can be controlled by controlling viscoelasticity of Ecoflex® in GF-Ecoflex® specimens, which is very useful for wearable magnetoelectronics.

AB - Usually, positive magnetoresistance (PMR) is observed in graphene foam (GF) under all temperature and magnetic field range. Herein, large negative magnetoresistance is observed under a temperature range 300–200 K which switches to PMR under a temperature range 200–5 K in graphene foam (GF)-Ecoflex® specimen. The GF-Ecoflex® shows NMR in highly crosslinked specimen, while lightly crosslinked shows PMR at room temperature. This indicates that the sign of magnetoresistance can be controlled by controlling viscoelasticity of Ecoflex® in GF-Ecoflex® specimens, which is very useful for wearable magnetoelectronics.

KW - Ecoflex®

KW - Graphene foam

KW - Magnetoresistance

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U2 - 10.1016/j.matlet.2019.06.066

DO - 10.1016/j.matlet.2019.06.066

M3 - Article

AN - SCOPUS:85067553071

SN - 0167-577X

VL - 253

SP - 166

EP - 170

JO - Materials Letters

JF - Materials Letters

ER -

Tunable sign of magnetoresistance in graphene foam – Ecoflex® composite for wearable magnetoelectronic devices

Abstract

Keywords

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ARC Centre of Excellence in Future Low-energy Electronics Technologies

Cite this

Tunable sign of magnetoresistance in graphene foam – Ecoflex® composite for wearable magnetoelectronic devices

Abstract

Keywords

Access to Document

Other files and links

Projects

ARC Centre of Excellence in Future Low-energy Electronics Technologies

Cite this