High pressure synthesis of late rare earth RFeAs(O,F) superconductors; R = Tb and Dy |
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| Authors: | Bos Jan-Willem G Penny George B S Rodgers Jennifer A Sokolov Dmitry A Huxley Andrew D Attfield J Paul |
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| Institution: | Centre for Science at Extreme Conditions, University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh, UKEH9 3JZ. j.p.attfield@ed.ac.uk. |
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| Abstract: | New TbFeAs(O,F) and DyFeAs(O,F) superconductors with critical temperatures T(c) = 46 and 45 K and very high critical fields, >/=100 T, have been prepared at 1100-1150 degrees C and 10-12 GPa, demonstrating that high pressure may be used to synthesise late rare earth derivatives of the recently reported RFeAs(O,F) (R = La-Nd, Sm, Gd) high temperature superconductors. |
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