Journal of Materials Research

Articles

In situ deposition/positioning of magnetic nanoparticles with ferroelectric nanolithography

Xiaojun Leia1, Dongbo Lia1, Rui Shaoa1 and Dawn A. Bonnella1 c1

a1 Department of Materials Science and Engineering, The University of Pennsylvania, Philadelphia, Pennsylvania 19104

Abstract

Ferroelectric nanolithography is a new approach to processing nanostructures, which can position multiple components made of various materials into predefined configurations. Local polarization in ferroelectric compounds is manipulated to control the surface electronic structure and direct attachment of molecules and particles. Here, the presence of optically excited electron-hole pairs on ferroelectric domains is confirmed, and reaction paths for photo reduction of several reactive metal particles are determined. Subsequent and simultaneous deposition of multiple metals is demonstrated, and the magnetic properties of Co based particles are confirmed.

(Received August 17 2004)

(Accepted December 13 2004)

(Online publication March 2005)

Key Words:

  • Nanoparticle;
  • Photochemical;
  • Scanning probe microscopy (SPM)

Correspondence:

c1 Address all correspondence to this author. e-mail: Bonnell@lrsm.upenn.edu

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