Structure and electrical transport properties of α-Fe filled carbon-foam

Jiayin Xu; Xi Zhang; Jun Pang; Ya Nie; Li Lei; Filippo S. Boi; Gang Xiang

doi:10.1016/j.physb.2020.412335

Structure and electrical transport properties of α-Fe filled carbon-foam

Jiayin Xu, Xi Zhang^*, Jun Pang, Ya Nie, Li Lei, Filippo S. Boi^*, Gang Xiang^*

^*Corresponding author for this work

Sichuan University

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

1 Citation (Scopus)

Abstract

In this work, we report a novel investigation of structure and electrical transport properties of carbon foam filled with Fe-based grains (Fe-CFM) by chemical vapor deposition and thermal annealing. The data suggest that the Fe-based grains consisted mostly of ferromagnetic α-Fe crystals and that the concentration of defects in the carbon foam is low. The samples exhibited a negative magnetoresistance (NMR), which was found to be associated with spin-dependent electronic scattering from the ferromagnetic grains encapsulated in the carbon foam. The samples also exhibited high Hall mobility of electrons. These important electron transport properties evidence new directions for electronic and spintronic applications of these filled CFM composites.

Original language	English
Article number	412335
Journal	Physica B: Condensed Matter
Volume	594
DOIs	https://doi.org/10.1016/j.physb.2020.412335
Publication status	Published - 1 Oct 2020
Externally published	Yes

Keywords

Carbon foam
Electrical transport
Magnetic particles
Negative magnetoresistance

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10.1016/j.physb.2020.412335

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title = "Structure and electrical transport properties of α-Fe filled carbon-foam",

abstract = "In this work, we report a novel investigation of structure and electrical transport properties of carbon foam filled with Fe-based grains (Fe-CFM) by chemical vapor deposition and thermal annealing. The data suggest that the Fe-based grains consisted mostly of ferromagnetic α-Fe crystals and that the concentration of defects in the carbon foam is low. The samples exhibited a negative magnetoresistance (NMR), which was found to be associated with spin-dependent electronic scattering from the ferromagnetic grains encapsulated in the carbon foam. The samples also exhibited high Hall mobility of electrons. These important electron transport properties evidence new directions for electronic and spintronic applications of these filled CFM composites.",

keywords = "Carbon foam, Electrical transport, Magnetic particles, Negative magnetoresistance",

author = "Jiayin Xu and Xi Zhang and Jun Pang and Ya Nie and Li Lei and Boi, {Filippo S.} and Gang Xiang",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

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doi = "10.1016/j.physb.2020.412335",

language = "English",

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T1 - Structure and electrical transport properties of α-Fe filled carbon-foam

AU - Xu, Jiayin

AU - Zhang, Xi

AU - Pang, Jun

AU - Nie, Ya

AU - Lei, Li

AU - Boi, Filippo S.

AU - Xiang, Gang

PY - 2020/10/1

Y1 - 2020/10/1

N2 - In this work, we report a novel investigation of structure and electrical transport properties of carbon foam filled with Fe-based grains (Fe-CFM) by chemical vapor deposition and thermal annealing. The data suggest that the Fe-based grains consisted mostly of ferromagnetic α-Fe crystals and that the concentration of defects in the carbon foam is low. The samples exhibited a negative magnetoresistance (NMR), which was found to be associated with spin-dependent electronic scattering from the ferromagnetic grains encapsulated in the carbon foam. The samples also exhibited high Hall mobility of electrons. These important electron transport properties evidence new directions for electronic and spintronic applications of these filled CFM composites.

AB - In this work, we report a novel investigation of structure and electrical transport properties of carbon foam filled with Fe-based grains (Fe-CFM) by chemical vapor deposition and thermal annealing. The data suggest that the Fe-based grains consisted mostly of ferromagnetic α-Fe crystals and that the concentration of defects in the carbon foam is low. The samples exhibited a negative magnetoresistance (NMR), which was found to be associated with spin-dependent electronic scattering from the ferromagnetic grains encapsulated in the carbon foam. The samples also exhibited high Hall mobility of electrons. These important electron transport properties evidence new directions for electronic and spintronic applications of these filled CFM composites.

KW - Carbon foam

KW - Electrical transport

KW - Magnetic particles

KW - Negative magnetoresistance

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U2 - 10.1016/j.physb.2020.412335

DO - 10.1016/j.physb.2020.412335

M3 - Article

AN - SCOPUS:85087398942

SN - 0921-4526

VL - 594

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

M1 - 412335

ER -

Structure and electrical transport properties of α-Fe filled carbon-foam

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Keywords

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