Imaging Magnetic Materials and Nanoparticles

October 20, 2020 | 11:00 am EDT

Can a scanning electron microscope (SEM) image magnetic material? This is a commonly asked question, and there are legitimate concerns about putting magnetic samples in an SEM (e.g., magnetic distortion, damage to the final lens).

In this webinar, we will answer these questions in detail and introduce the advantages of the ZEISS Gemini column for imaging such materials. Through examples of several applications, we will highlight the optimal conditions and methods for imaging and performing analytics such as EDS and EBSD on demagnetized and magnetic samples and nanoparticles that will enable you to get the most out of your SEM. Finally, we will discuss a special contrast mechanism that enables imaging of magnetic domains using Type I magnetic contrast.

Key Learning Objectives

  • Understand the differences between immersion and field-free objectives and their influences in imaging magnetic materials.
  • Learn the optimal SEM conditions for imaging magnetized and demagnetized samples and nanoparticles at high resolution.
  • Investigate magnetic contrast using low-voltage SEM imaging.