Aberration corrected Lorentz scanning transmission electron microscopy

Abstract:

We present results from an aberration corrected scanning transmission electron microscope which has been customised for high resolution quantitative Lorentz microscopy with the sample located in a magnetic field free or low field environment. We discuss the innovations in microscope instrumentation and additional hardware that underpin the imaging improvements in resolution and detection with a focus on developments in differential phase contrast microscopy. Examples from materials possessing nanometre scale variations in magnetisation illustrate the potential for aberration corrected Lorentz imaging as a tool to further our understanding of magnetism on this lengthscale.

Año de publicación:

2015

Keywords:

• Magnetic thin films
• Lorentz microscopy
• Aberration correction
• Differential phase contrast

Fuente:

scopus