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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...