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Fermi arcs in a doped pseudospin-1/2 Heisenberg antiferromagnet
Kim, Y. K.,Krupin, O.,Denlinger, J. D.,Bostwick, A.,Rotenberg, E.,Zhao, Q.,Mitchell, J. F.,Allen, J. W.,Kim, B. J. American Association for the Advancement of Scienc 2014 Science Vol.345 No.6193
<P><B>Identifying a cuprate look-alike</B></P><P>Superconductivity in cuprate compounds remains poorly understood. Recreating its features in an unrelated material may provide insight. Kim <I>et al.</I> used a spectroscopic technique to study the electronic states of the material Sr<SUB>2</SUB>IrO<SUB>4</SUB> at relatively high temperatures. They observed phenomenology similar to that of cuprates as they varied the surface carrier concentration. The study highlights the essential properties a material needs in order to exhibit cuprate-like features in the normal (nonsuperconducting) state.</P><P><I>Science</I>, this issue p. 187</P>