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    Université de Fribourg

    Rotation symmetry breaking in ${\mathrm{La}}_{2-x}{\mathrm{Sr}}_{x}{\mathrm{CuO}}_{4}$ revealed by angle-resolved photoemission spectroscopy

    Razzoli, Ellias ; Matt, Christian E. ; Sassa, Y. ; Månsson, M. ; Tjernberg, O. ; Drachuck, G. ; Monomo, M. ; Oda, M. ; Kurosawa, T. ; Huang, Y. ; Plumb, N. C. ; Radovic, M. ; Keren, Amit ; Patthey, Luc ; Mesot, Joël ; Shi, Ming

    In: Physical Review B, 2017, vol. 95, no. 22, p. 224504

    Using angle-resolved photoemission spectroscopy it is revealed that in the vicinity of optimal doping the electronic structure of La2−xSrxCuO4 cuprate undergoes an electronic reconstruction associated with a wave vector qa=(π,0). The reconstructed Fermi surface and folded band are distinct to the shadow bands observed in BSCCO cuprates and in underdoped La2−xSrxCuO4 with x≤0.12, which...

    Université de Fribourg

    Comprehensive study of the spin-charge interplay in antiferromagnetic La2−xSrxCuO₄

    Drachuck, Gil ; Razzoli, Elia ; Bazalitski, Galina ; Kanigel, Amit ; Niedermayer, Christof ; Shi, Ming ; Keren, Amit

    In: Nature Communications, 2014, vol. 5, p. -

    The origin of the pseudogap and its relationship with superconductivity in the cuprates remains vague. In particular, the interplay between the pseudogap and magnetism is mysterious. Here we investigate the newly discovered nodal gap in hole-doped cuprates using a combination of three experimental techniques applied to one, custom made, single crystal. The crystal is an antiferromagnetic...

    2 results 1