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High Tc Superconductors

Science 288, 1811 (2000).
Phys. Rev. B. 78, 184508 (2008).
Phys. Rev. Lett. 103, 037002 (2009).
Phys. Rev. B. 85, 094510 (2012).
Momentum dependence of superconducting gap, strong-coupling dispersion kink, and tightly bound Cooper pairs in the high-Tc (Sr,Ba)1-x(K,Na)xFe2As2 superconductors
Published in L. Wray, D. Qian, D. Hsieh et al., Phys. Rev. B. 78, 184508 (2008)

Fermi Surface Topology and Low-Lying Quasiparticle Dynamics of Parent Fe1+xTe/Se Superconductor.
Published in Y. Xia, D. Qian, L. Wray, et al., Phys. Rev. Lett. 103, 037002 (2009).


We report a first study of low energy electronic structure and Fermi surface topology for the recently discovered iron-based superconductor Ca10(Pt3As8)(Fe2As2)5 (the 10-3-8 phase, with Tc ~8K), via angle resolved photoemission spectroscopy (ARPES). Our results suggest that intermediary layers Pt3As8 couple only weakly to the FeAs layers in this new superconductor.

Fermi surface topology and low-lying electronic structure of a new iron-based superconductor Ca10(Pt3As8)(Fe2As2)5.
Published in Madhab Neupane, C. Liu, S.-Y. Xu, et al., Phys. Rev. B. 85, 094510 (2012).