Hello Ali, chromium will always form a thin, tight oxide (passivation) layer when it is exposed to air. This is the reason for its resistance against corrosion. We use sputtered chromium as an adhesion layer and the nano-scaled oxide layer never seemed to be problematic. If it should be a problem for you (why?), I would recommend to choose another metal. Regards, André -----Ursprüngliche Nachricht----- Von: mems-talk-bounces+aboedecker=imsas.uni-bremen.de@memsnet.org [mailto:mems-talk-bounces+aboedecker=imsas.uni-bremen.de@memsnet.org] Im Auftrag von Ali Alsaqqa Gesendet: Dienstag, 13. Oktober 2015 02:45 An: mems-talk@memsnet.org Betreff: [mems-talk] Best way to make elemental Cr films Hello all, I would like to know what is the best way to prepare films of elemental Chromium. Exact thickness does not matter, but something like hundreds of nanometers should be fine. The target measurement is simple transport (I, V) in the presence of some magnetic field. My main concern here is oxidization. I was thinking about depositing the films using e-beam evaporator, but it can attain a vacuum of only 10-7 Torr, and with this level oxidization will occur. MBE is not an option at the moment. I was also thinking about buying wafers from commercial sectors, but I will run into the same problem, i.e. the surface will oxidize as soon as it contacts air. Are there any suggestions? Ali M. Alsaqqa, PhD candidate, Department of Physics, University at Buffalo, NY, USA _______________________________________________ Hosted by the MEMS and Nanotechnology Exchange, the country's leading provider of MEMS and Nanotechnology design and fabrication services. Visit us at http://www.mems-exchange.org Want to advertise to this community? See http://www.memsnet.org To unsubscribe: http://mail.mems-exchange.org/mailman/listinfo/mems-talk _______________________________________________ Hosted by the MEMS and Nanotechnology Exchange, the country's leading provider of MEMS and Nanotechnology design and fabrication services. Visit us at http://www.mems-exchange.org Want to advertise to this community? See http://www.memsnet.org To unsubscribe: http://mail.mems-exchange.org/mailman/listinfo/mems-talk