Specific Process Knowledge/Thin film deposition/Deposition of Magnesium
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Deposition of Magnesium
Magnesium is a relatively volatile metal and we have never deposited it here at Nanolab. Because of its high vapor pressure it is not well suited for deposition in multi-user systems as it will easily re-evaporate from the chamber surfaces and contaminate the films of subsequent users. We are also concerned about deposition of Mg in a chamber with a cryo pump as a very volatile metal may clog the pump.
If you wish to deposit magnesium, please explore options with collaborators at other institutions.
Below is a summary of information compiled Spring 2020 when we considered depositing Mg at Nanolab.
Mg advice spring 2020
Input collected by Rebecca (reet)
- None of the groups we wrote to have mentioned that they have experience with using the chamber for something else after using it for Mg.
- At Penn State they used a cryo pump with Mg e-beam evaporation for many experiments (at least 2 students and several papers) apparently without issues with the pump.
- More detailed info may be found in LabIntra (requires login).