Abstract
A low-energy electron diffraction (LEED) apparatus which works at temperatures down to about 100mK is designed to obtain structural information of 2D helium on graphite. This very low temperature system can be realized by reducing the thermal inflow from the LEED optics to the sample which is cooled by cryogen-free dilution refrigerator. The atomic scattering factor of He is also estimated using a kinematical model, which suggests that the diffraction signal from He atom can well be obtained by using a delay-line detector instead of a fluorescent screen.
| Original language | English |
|---|---|
| Article number | 052019 |
| Journal | Journal of Physics: Conference Series |
| Volume | 400 |
| Issue number | PART 4 |
| DOIs | |
| Publication status | Published - 2012 |
| Externally published | Yes |
| Event | 26th International Conference on Low Temperature Physics, LT 2011 - Beijing, China Duration: Aug 10 2011 → Aug 17 2011 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy