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^*

^*Corresponding author for this work

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

13 Scopus citations

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
State	Published - 15 Oct 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019 Elsevier B.V.

Keywords

Ecoflex®
Graphene foam
Magnetoresistance

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matlet.2019.06.066

Cite this

@article{737cb336267b4cfcb64c009f5e053acc,

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",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = oct,

day = "15",

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

language = "English",

volume = "253",

pages = "166--170",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

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

UR - https://www.scopus.com/pages/publications/85067553071

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

Bibliographical note

Keywords

ASJC Scopus subject areas

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