Magnetoresistive effect in PET films with iron nanoparticles synthesised by ion implantation

M. Lukashevich, Vladimir Popok, V.S. Volobuev, A.A. Melnikov, R. Khaibullin, V. Bazarov, A. Wieck, Vladimir Odzhaev

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Abstract

Thin polyethyleneterephthalate (PET) layers with Fe nanoparticles (NPs) were synthesised by high-fluence ion implantation. Temperature dependence of conductance and magnetoresitance were studied as a function of ion fluence. It is found that the implantation with fluences of about 1.0×1017 cm-2 causes high enough concentration of metal inclusions to provide conditions for electrical percolation that leads to an insulator-to-metal transition (IMT) in charge carrier transport mechanisms. The magnetoresistance measurements indicate that the magnetic percolation takes place at metal concentrations (fluences) lower than those needed for the electrical percolation. For the samples on insulating side of the IMT, a non-monotonous dependence of resistance in an increasing external magnetic field is observed due to anisotropic magnetoresistive effect and charge carrier scattering on magnetic inclusions. For the samples implanted with fluences > 1.0×1017 cm-2, the magnetoresistance becomes a monotonous decreasing function of the external magnetic field which is typical for ferromagnetic metals that indicates effective magnetic coupling of the iron inclusions.
Original languageEnglish
JournalThe Open Applied Physics Journal
Volume3
Pages (from-to)1-5
Number of pages5
ISSN1874-1835
DOIs
Publication statusPublished - Jan 2010
Externally publishedYes

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ion implantation
fluence
iron
nanoparticles
inclusions
charge carriers
transition metals
insulators
metals
magnetic fields
implantation
temperature dependence
causes
scattering
ions

Keywords

  • Polymers
  • ion implantation
  • magnetic nanoparticles
  • magnetoresistance

Cite this

Lukashevich, M. ; Popok, Vladimir ; Volobuev, V.S. ; Melnikov, A.A. ; Khaibullin, R. ; Bazarov, V. ; Wieck, A. ; Odzhaev, Vladimir. / Magnetoresistive effect in PET films with iron nanoparticles synthesised by ion implantation. In: The Open Applied Physics Journal. 2010 ; Vol. 3. pp. 1-5.
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title = "Magnetoresistive effect in PET films with iron nanoparticles synthesised by ion implantation",
abstract = "Thin polyethyleneterephthalate (PET) layers with Fe nanoparticles (NPs) were synthesised by high-fluence ion implantation. Temperature dependence of conductance and magnetoresitance were studied as a function of ion fluence. It is found that the implantation with fluences of about 1.0×1017 cm-2 causes high enough concentration of metal inclusions to provide conditions for electrical percolation that leads to an insulator-to-metal transition (IMT) in charge carrier transport mechanisms. The magnetoresistance measurements indicate that the magnetic percolation takes place at metal concentrations (fluences) lower than those needed for the electrical percolation. For the samples on insulating side of the IMT, a non-monotonous dependence of resistance in an increasing external magnetic field is observed due to anisotropic magnetoresistive effect and charge carrier scattering on magnetic inclusions. For the samples implanted with fluences > 1.0×1017 cm-2, the magnetoresistance becomes a monotonous decreasing function of the external magnetic field which is typical for ferromagnetic metals that indicates effective magnetic coupling of the iron inclusions.",
keywords = "Polymers, ion implantation, magnetic nanoparticles, magnetoresistance",
author = "M. Lukashevich and Vladimir Popok and V.S. Volobuev and A.A. Melnikov and R. Khaibullin and V. Bazarov and A. Wieck and Vladimir Odzhaev",
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Lukashevich, M, Popok, V, Volobuev, VS, Melnikov, AA, Khaibullin, R, Bazarov, V, Wieck, A & Odzhaev, V 2010, 'Magnetoresistive effect in PET films with iron nanoparticles synthesised by ion implantation', The Open Applied Physics Journal, vol. 3, pp. 1-5. https://doi.org/10.2174/1874183501003010001

Magnetoresistive effect in PET films with iron nanoparticles synthesised by ion implantation. / Lukashevich, M.; Popok, Vladimir; Volobuev, V.S.; Melnikov, A.A.; Khaibullin, R.; Bazarov, V.; Wieck, A.; Odzhaev, Vladimir.

In: The Open Applied Physics Journal, Vol. 3, 01.2010, p. 1-5.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Magnetoresistive effect in PET films with iron nanoparticles synthesised by ion implantation

AU - Lukashevich, M.

AU - Popok, Vladimir

AU - Volobuev, V.S.

AU - Melnikov, A.A.

AU - Khaibullin, R.

AU - Bazarov, V.

AU - Wieck, A.

AU - Odzhaev, Vladimir

PY - 2010/1

Y1 - 2010/1

N2 - Thin polyethyleneterephthalate (PET) layers with Fe nanoparticles (NPs) were synthesised by high-fluence ion implantation. Temperature dependence of conductance and magnetoresitance were studied as a function of ion fluence. It is found that the implantation with fluences of about 1.0×1017 cm-2 causes high enough concentration of metal inclusions to provide conditions for electrical percolation that leads to an insulator-to-metal transition (IMT) in charge carrier transport mechanisms. The magnetoresistance measurements indicate that the magnetic percolation takes place at metal concentrations (fluences) lower than those needed for the electrical percolation. For the samples on insulating side of the IMT, a non-monotonous dependence of resistance in an increasing external magnetic field is observed due to anisotropic magnetoresistive effect and charge carrier scattering on magnetic inclusions. For the samples implanted with fluences > 1.0×1017 cm-2, the magnetoresistance becomes a monotonous decreasing function of the external magnetic field which is typical for ferromagnetic metals that indicates effective magnetic coupling of the iron inclusions.

AB - Thin polyethyleneterephthalate (PET) layers with Fe nanoparticles (NPs) were synthesised by high-fluence ion implantation. Temperature dependence of conductance and magnetoresitance were studied as a function of ion fluence. It is found that the implantation with fluences of about 1.0×1017 cm-2 causes high enough concentration of metal inclusions to provide conditions for electrical percolation that leads to an insulator-to-metal transition (IMT) in charge carrier transport mechanisms. The magnetoresistance measurements indicate that the magnetic percolation takes place at metal concentrations (fluences) lower than those needed for the electrical percolation. For the samples on insulating side of the IMT, a non-monotonous dependence of resistance in an increasing external magnetic field is observed due to anisotropic magnetoresistive effect and charge carrier scattering on magnetic inclusions. For the samples implanted with fluences > 1.0×1017 cm-2, the magnetoresistance becomes a monotonous decreasing function of the external magnetic field which is typical for ferromagnetic metals that indicates effective magnetic coupling of the iron inclusions.

KW - Polymers

KW - ion implantation

KW - magnetic nanoparticles

KW - magnetoresistance

U2 - 10.2174/1874183501003010001

DO - 10.2174/1874183501003010001

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SP - 1

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JF - The Open Applied Physics Journal

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