TY  - JOUR
AU  - Tavabi, Amir Hossein
AU  - Beleggia, Marco
AU  - Migunov, Vadim
AU  - Savenko, Alexey
AU  - Öktem, Ozan
AU  - Dunin-Borkowski, Rafal
AU  - Pozzi, Giulio
TI  - Tunable Ampere phase plate for low dose imaging of biomolecular complexes
JO  - Scientific reports
VL  - 8
IS  - 1
SN  - 2045-2322
CY  - London
PB  - Nature Publishing Group
M1  - FZJ-2018-01952
SP  - 5592
PY  - 2018
AB  - A novel device that can be used as a tunable support-free phase plate for transmission electron microscopy of weakly scattering specimens is described. The device relies on the generation of a controlled phase shift by the magnetic field of a segment of current-carrying wire that is oriented parallel or antiparallel to the electron beam. The validity of the concept is established using both experimental electron holographic measurements and a theoretical model based on Ampere’s law. Computer simulations are used to illustrate the resulting contrast enhancement for studies of biological cells and macromolecules.
LB  - PUB:(DE-HGF)16
C6  - pmid:29618785
UR  - <Go to ISI:>//WOS:000429095600001
DO  - DOI:10.1038/s41598-018-23100-3
UR  - https://juser.fz-juelich.de/record/844545
ER  -