Spin-dependent transport in nanocomposite C: co films

Shengqiang Zhou, Markus Berndt, Danilo Bürger, Viton Heera, Kay Potzger, Gintautas Abrasonis, G. Radnóczi, György J. Kovács, Andreas Kolitsch, Manfred Helm, Jürgen Fassbender, Wolfhard Möller, Heidemarie Schmidt

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The magneto-transport properties of nanocomposite C:Co (15 and 40 at.% Co) thin films are investigated. The films were grown by ion beam co-sputtering on thermally oxidized silicon substrates in the temperature range from 200 to 500 °C. Two major effects are reported: (i) a large anomalous Hall effect amounting to 2 μΩ cm, and (ii) a negative magnetoresistance. Both the field-dependent resistivity and Hall resistivity curves coincide with the rescaled magnetization curves, a finding that is consistent with spin-dependent transport. These findings suggest that C:Co nanocomposites are promising candidates for carbon-based Hall sensors and spintronic devices.

Original languageEnglish
Pages (from-to)4758-4764
Number of pages7
JournalActa Materialia
Volume57
Issue number16
DOIs
Publication statusPublished - Sep 2009

Fingerprint

Nanocomposites
Magnetoelectronics
Hall effect
Silicon
Magnetoresistance
Transport properties
Ion beams
Sputtering
Magnetization
Carbon
Thin films
Sensors
Substrates
Temperature

Keywords

  • Anomalous hall effect
  • Carbon:cobalt nanocomposite
  • Magnetic nanoparticles
  • Magneto-transport
  • TEM

ASJC Scopus subject areas

  • Ceramics and Composites
  • Metals and Alloys
  • Polymers and Plastics
  • Electronic, Optical and Magnetic Materials

Cite this

Zhou, S., Berndt, M., Bürger, D., Heera, V., Potzger, K., Abrasonis, G., ... Schmidt, H. (2009). Spin-dependent transport in nanocomposite C: co films. Acta Materialia, 57(16), 4758-4764. https://doi.org/10.1016/j.actamat.2009.06.035

Spin-dependent transport in nanocomposite C : co films. / Zhou, Shengqiang; Berndt, Markus; Bürger, Danilo; Heera, Viton; Potzger, Kay; Abrasonis, Gintautas; Radnóczi, G.; Kovács, György J.; Kolitsch, Andreas; Helm, Manfred; Fassbender, Jürgen; Möller, Wolfhard; Schmidt, Heidemarie.

In: Acta Materialia, Vol. 57, No. 16, 09.2009, p. 4758-4764.

Research output: Contribution to journalArticle

Zhou, S, Berndt, M, Bürger, D, Heera, V, Potzger, K, Abrasonis, G, Radnóczi, G, Kovács, GJ, Kolitsch, A, Helm, M, Fassbender, J, Möller, W & Schmidt, H 2009, 'Spin-dependent transport in nanocomposite C: co films', Acta Materialia, vol. 57, no. 16, pp. 4758-4764. https://doi.org/10.1016/j.actamat.2009.06.035
Zhou S, Berndt M, Bürger D, Heera V, Potzger K, Abrasonis G et al. Spin-dependent transport in nanocomposite C: co films. Acta Materialia. 2009 Sep;57(16):4758-4764. https://doi.org/10.1016/j.actamat.2009.06.035
Zhou, Shengqiang ; Berndt, Markus ; Bürger, Danilo ; Heera, Viton ; Potzger, Kay ; Abrasonis, Gintautas ; Radnóczi, G. ; Kovács, György J. ; Kolitsch, Andreas ; Helm, Manfred ; Fassbender, Jürgen ; Möller, Wolfhard ; Schmidt, Heidemarie. / Spin-dependent transport in nanocomposite C : co films. In: Acta Materialia. 2009 ; Vol. 57, No. 16. pp. 4758-4764.
@article{00ef7057adbd40b1bbb81aafec020a24,
title = "Spin-dependent transport in nanocomposite C: co films",
abstract = "The magneto-transport properties of nanocomposite C:Co (15 and 40 at.{\%} Co) thin films are investigated. The films were grown by ion beam co-sputtering on thermally oxidized silicon substrates in the temperature range from 200 to 500 °C. Two major effects are reported: (i) a large anomalous Hall effect amounting to 2 μΩ cm, and (ii) a negative magnetoresistance. Both the field-dependent resistivity and Hall resistivity curves coincide with the rescaled magnetization curves, a finding that is consistent with spin-dependent transport. These findings suggest that C:Co nanocomposites are promising candidates for carbon-based Hall sensors and spintronic devices.",
keywords = "Anomalous hall effect, Carbon:cobalt nanocomposite, Magnetic nanoparticles, Magneto-transport, TEM",
author = "Shengqiang Zhou and Markus Berndt and Danilo B{\"u}rger and Viton Heera and Kay Potzger and Gintautas Abrasonis and G. Radn{\'o}czi and Kov{\'a}cs, {Gy{\"o}rgy J.} and Andreas Kolitsch and Manfred Helm and J{\"u}rgen Fassbender and Wolfhard M{\"o}ller and Heidemarie Schmidt",
year = "2009",
month = "9",
doi = "10.1016/j.actamat.2009.06.035",
language = "English",
volume = "57",
pages = "4758--4764",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "Elsevier Limited",
number = "16",

}

TY - JOUR

T1 - Spin-dependent transport in nanocomposite C

T2 - co films

AU - Zhou, Shengqiang

AU - Berndt, Markus

AU - Bürger, Danilo

AU - Heera, Viton

AU - Potzger, Kay

AU - Abrasonis, Gintautas

AU - Radnóczi, G.

AU - Kovács, György J.

AU - Kolitsch, Andreas

AU - Helm, Manfred

AU - Fassbender, Jürgen

AU - Möller, Wolfhard

AU - Schmidt, Heidemarie

PY - 2009/9

Y1 - 2009/9

N2 - The magneto-transport properties of nanocomposite C:Co (15 and 40 at.% Co) thin films are investigated. The films were grown by ion beam co-sputtering on thermally oxidized silicon substrates in the temperature range from 200 to 500 °C. Two major effects are reported: (i) a large anomalous Hall effect amounting to 2 μΩ cm, and (ii) a negative magnetoresistance. Both the field-dependent resistivity and Hall resistivity curves coincide with the rescaled magnetization curves, a finding that is consistent with spin-dependent transport. These findings suggest that C:Co nanocomposites are promising candidates for carbon-based Hall sensors and spintronic devices.

AB - The magneto-transport properties of nanocomposite C:Co (15 and 40 at.% Co) thin films are investigated. The films were grown by ion beam co-sputtering on thermally oxidized silicon substrates in the temperature range from 200 to 500 °C. Two major effects are reported: (i) a large anomalous Hall effect amounting to 2 μΩ cm, and (ii) a negative magnetoresistance. Both the field-dependent resistivity and Hall resistivity curves coincide with the rescaled magnetization curves, a finding that is consistent with spin-dependent transport. These findings suggest that C:Co nanocomposites are promising candidates for carbon-based Hall sensors and spintronic devices.

KW - Anomalous hall effect

KW - Carbon:cobalt nanocomposite

KW - Magnetic nanoparticles

KW - Magneto-transport

KW - TEM

UR - http://www.scopus.com/inward/record.url?scp=68949136989&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=68949136989&partnerID=8YFLogxK

U2 - 10.1016/j.actamat.2009.06.035

DO - 10.1016/j.actamat.2009.06.035

M3 - Article

AN - SCOPUS:68949136989

VL - 57

SP - 4758

EP - 4764

JO - Acta Materialia

JF - Acta Materialia

SN - 1359-6454

IS - 16

ER -