Field enhancement of a 12.5-T magnet using holmium poles Hoard, R. ; Mance, S. ; Leber, R. ; Dalder, E. ; Chaplin, M. ; Blair, K. ; Nelson, D. ; van Dyke, D. Abstract Publication: IEEE Transactions on Magnetics Pub Date: March 1985 DOI: 10.1109/TMAG.1985.1063692 Bibcode: 1985ITM....21..448H