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Journal of Applied Electrochemistry

, Volume 35, Issue 5, pp 479–485 | Cite as

CdTe semiconductor nanowires and NiFe ferro-magnetic metal nanowires electrodeposited into cylindrical nano-pores on the surface of anodized aluminum

  • Takeshi Ohgai
  • Laurent Gravier
  • Xavier Hoffer
  • Jean-Philippe Ansermet
Article

Abstract

Cylindrical nano-pores of an anodized aluminum oxide layer on the surface of bulk aluminum were used as templates for the electrochemical growth of semiconductor and magnetic nanowires. The electrodeposition of CdTe and NiFe was investigated to determine the optimum conditions for each nanowire growth over a wide range of cathode potentials. The desired composition of Cd50Te50 and Ni80Fe20 was achieved by controlling the cathode potential during electrodeposition. Temperature dependences of resistance for CdTe nanowires confirmed the semiconductor character with amorphous behavior at low temperature, while those of NiFe nanowires showed metallic character. The anisotropic magnetoresistance (AMR) of NiFe nanowires reached 1.9% at 300 K.

Key words

CdTe electrodeposition magnetoresistance nanowire NiFe semiconductor 

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Copyright information

© Springer 2005

Authors and Affiliations

  • Takeshi Ohgai
    • 1
    • 2
  • Laurent Gravier
    • 1
  • Xavier Hoffer
    • 1
  • Jean-Philippe Ansermet
    • 1
  1. 1.Institut de Physique des NanostructuresEcole Polytechnique Fédérale de LausanneSwitzerland
  2. 2.Department of Materials Science and EngineeringNagasaki UniversityNagasakiJapan

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