| Comment on "Magnetic Order in the Pseudogap Phase of High-Tc Superconductors'' (2008) | |||||||||
Abstract | |||||||||
| In a recent Letter, Fauque et al. [Phys. Rev. Lett. 96, 197001 (2006)] reported the detection of a novel magnetic order in YBCO near the pseudogap transition temperature T*. They remark that this magnetic order has not been clearly identified by local probes and, in particular, by muon spin resonance. The purpose of this Comment is to point out that this is untrue, and together with the more recent detection of broken time reversal symmetry by polar Kerr effect measurements [J. Xia et al. Phys. Rev. Lett. 100, 127002 (2008)], there are now three very different kinds of experiments that provide evidence for this magnetic transition.. Comment: 1 page, 1 figure | |||||||||
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