The Dresden in-situ (S)TEM special with a continuous-flow liquid-helium cryostat
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
Fundamental solid state physics phenomena often occur at very low temperatures, requiring liquid helium cooling in experimental studies. Transmission electron microscopy is a well-established characterization method, which allows probing crucial materials properties down to nanometre and even atomic resolution. Due to the limited space in the object plane, however, suitable liquid-helium cooling is very challenging. To overcome this limitation, resolving power was sacrificed in our Dresden in-situ (S)TEM special, resulting in more than 60 mm usable experimental space in all directions with the specimen in the centre. With the installation of a continuous-flow liquid-helium cryostat, any temperature between 6.5 K and 400 K can be set precisely and kept for days. The information limit of the Dresden in-situ (S)TEM special is about 5 nm. It is shown that the resolution of the Dresden in-situ (S)TEM special is currently not limited by aberrations, but by external instabilities.
Details
Originalsprache | Englisch |
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Seiten (von - bis) | 12-20 |
Seitenumfang | 9 |
Fachzeitschrift | Ultramicroscopy |
Jahrgang | 203 |
Publikationsstatus | Veröffentlicht - Aug. 2019 |
Peer-Review-Status | Ja |
Externe IDs
PubMed | 30902417 |
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Schlagworte
ASJC Scopus Sachgebiete
Schlagwörter
- In-situ, Instrumentation, STEM, TEM