TY - JOUR AU - Tingting Fan AU - Patrik Grychtol AU - R. Knut AU - Carlos Hernández-García AU - Daniel Hickstein AU - Dmitriy Zusin AU - Christian Gentry AU - Franklin Dollar AU - Christopher Mancuso AU - C.W. Hogle AU - Ofer Kfir AU - Dominik Legut AU - Karel Carva AU - Jennifer Ellis AU - Kevin Dorney AU - Cong Chen AU - Oleg Shpyrko AU - Eric Fullerton AU - Oren Cohen AU - Peter Oppeneer AU - Dejan Milošević AU - Andreas Becker AU - Agnieszka Jaron-Becker AU - Tenio Popmintchev AU - Margaret Murnane AU - Henry Kapteyn AB - We present the first circularly-polarized soft X-ray harmonics to photon energies >160eV. Bright phase matched beams are used to characterize important materials with intrinsic perpendicular magnetic anisotropy for the first time using tabletop sources. BT - Proceedings of the National Academy of Sciences of the United States of America DA - 2015-11 DO - 10.1073/pnas.1519666112 IS - 46 N2 - We present the first circularly-polarized soft X-ray harmonics to photon energies >160eV. Bright phase matched beams are used to characterize important materials with intrinsic perpendicular magnetic anisotropy for the first time using tabletop sources. PY - 2015 SP - 14206 EP - 14211 T2 - Proceedings of the National Academy of Sciences of the United States of America TI - Bright circularly polarized soft X-ray high harmonics for X-ray magnetic circular dichroism VL - 112 ER -