%N 23 %T Circularly Polarized X Rays as a Probe of Noncollinear Magnetic Order in Multiferroic TbMnO3 (vol 102, 237205, 2009) %A F Fabrizi %A HC Walker %A L Paolasini %A F de Bergevin %A AT Boothroyd %A D Prabhakaran %A DF McMorrow %V 106 %D 2011 %J PHYS REV LETT %L discovery1315011 %I AMER PHYSICAL SOC %O © 2011 American Physical Society %X Erratum: Circularly Polarized X Rays as a Probe of Noncollinear Magnetic Order in Multiferroic TbMnO3 [Phys. Rev. Lett. 102, 237205 (2009)]