Recent developments in dynamic transmission electron microscopy

Recent Progress in Lorentz Transmission Electron Microscopy

After a brief review of the basic methods of Lorentz transmission electron microscopy (LTEM), including the Transport-of-Intensity formalism for phase reconstruction, we present a few examples of the application of LTEM to multiferroic materials, in this case ferromagnetic shape memory alloys. We discuss observations of magnetic domain walls pinned to anti-phase boundaries in Ni2MnGa, and domai...

Recent developments in cryo-electron microscopy reconstruction of single particles.

Cryo-electron microscopy and single-particle 3D image reconstruction techniques have been used to examine a broad spectrum of samples ranging from 500 kDa protein complexes to large subcellular organelles. The attainable resolution has improved rapidly over the past few years. Structures of both symmetric and asymmetric assemblies at approximately 7.5 A have been reported. Together with X-ray c...

Some recent developments in the field of electron microscopy.

Modern Developments in Electron Microscopy

The caliber of many of the papers was less than optimum. For instance, in the paper on, "The effects of Insulin on Water Intake in the Rat," the author made no attempt to determine if hypoglycemia, shock, or anoxia had occurred after 16-32 units of crystalline insulin was given intravenously to rats. For the reader interested in the complex physio-psychological problem of thirst this symposium ...

Electron Holography: Recent Developments

With the ever increasing speed of modern computers, computing-power hungry applications as electron holography can become more interactive and user friendly and be available for live-time application. New phase unwrapping algorithms and improved reconstruction techniques are discussed together with new approaches to improve the signal/noise ratio in reconstructed phase and amplitude images. Whi...