Correlating Microstructure with Switching Field Distribution in Nanomagnetic Systems with Transmission Electron Microscopy

Abstract

This paper examines how nominally identical nanostructures can exhibit different switching behaviors in two model systems. The first system consists of an array of perpendicularly magnetized Co/Pd multilayer nanodots. The authors found that the nonuniformity in switching fields among the nanodots in an array is due to a single grain of weak uniaxial anisotropy. In the second system, which consists of inplane magnetized Permalloy nanodot arrays, they found that edge roughness plays an important role in the switching uniformity of the nanodot array.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2008
Accession Number
ADA495998

Entities

People

  • June W. Lau

Organizations

  • National Institute of Standards and Technology

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Ceramic Materials
  • Electron Beam Lithography
  • Electron Diffraction
  • Electron Microscopes
  • Electron Microscopy
  • Electrons
  • Grain Size
  • Magnetic Properties
  • Microscopes
  • Microscopy
  • Microstructure
  • Nanostructures
  • Nucleation
  • Roughness
  • Standards
  • Switching
  • Transmission Electron Microscopy

Fields of Study

  • Physics

Readers

  • Microwave Engineering.
  • Nanofabrication and Microfabrication.
  • Structural Health Monitoring of Composite Structures.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene