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High pressure synthesis of late rare earth RFeAs(O,F) superconductors; R = Tb and Dy

By J.P. Attfield, Huxley A.D., Sokolov D.A., Rodgers J.A., Penny G.B.S. and Bos J.W.G.


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

Topics: 43 k; metal
Year: 2008
DOI identifier: 10.1039/b808474b
OAI identifier:

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