In 2001 it would have been a world record, but by 2005 those kinds of superconducting magnets had become pretty regular pieces of equipment, at least for the ki

In 2001 it would have been a world record, but by 2005 those kinds of superconducting magnets had become pretty regular pieces of equipment, at least for the kind of nanophysics lab I was in. You should realize it creates that field only inside a small space with a diameter of a few cm. The entire thing is suspended in liquid helium, including the samples on which we did measurements. I believe we estimated that, at a meter from the magnet, the field had dropped to something like 3T. I'm not sure how much power it drew, but I seem to recall it was plugged into a regular socket.