Magneto-elastic Tuning of Ferroelectricity Within a Magnetoelectric Nanowire

Abstract

Nanowires each consisting of a magnetostrictive Co core and a PbZr0.52Ti0.48O3 or BiFeO3 ferroelectric oxide shell exhibit a magnetic field-tunable piezoelectric response and ferroelectric coercivity owing to magneto-elastic coupling through the interfacial core-shell boundary. The observed magneto-elastic tuning of the ferroelectric switching is analyzed using a renormalized Landau-Ginzburg stiffness in which a magnetic field-tunable stress concentration is incorporated. These results provide insight into the design of integrated functional devices and magnetoelectric sensors.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2011
Accession Number
ADA561501

Entities

People

  • Jonathan E Spanier
  • K. Bussmann
  • Oren D. Leaffer
  • Peter Finkel
  • Stephanie H. Johnson
  • Stephen S. Nonnenmann

Organizations

  • Drexel University

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors

DTIC Thesaurus Topics

  • Boundaries
  • Chemistry
  • Coercivity
  • Diameters
  • Films
  • Geometry
  • Magnetic Fields
  • Magnetic Materials
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Nanostructures
  • Nanowires
  • Physical Properties
  • Stresses
  • Thin Films

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Nanocomposite Materials Science