A standardised sample holder increases the possibilities for collaboration between laboratories working in the field of the AC-QHE. The main objective of this project was to provide other laboratories interested in the AC QHE with a new sample holder developed at METAS for this application.
A description of the sample holder, printed circuit board and T08-adapter was sent to nineteen laboratories. Six laboratories (NMi, UME, CEM, BIPM, SP and JV) ordered a total of 14 AC QHR sample holders, 47 printed circuit boards and 11 T08-adapters.
Although the project is now finished, it is still possible to order AC QHR sample holders, a few units are still available.