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

Razzoli, Elia; 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

doi:10.1103/PhysRevB.95.224504

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Journal article

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

Razzoli, Elia Swiss Light Source, Paul Scherrer Institute, Villigen PSI, Switzerland - Département de Physique and Fribourg Center for Nanomaterials, Université de Fribourg, Switzerland
Matt, Christian E. Swiss Light Source, Paul Scherrer Institute, Villigen PSI, Switzerland - Laboratory for Solid State Physics, ETH Zurich, Switzerland
Sassa, Y. Swiss Light Source, Paul Scherrer Institute, Villigen PSI, Switzerland - Laboratory for Solid State Physics, ETH Zurich, Switzerland - Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
Månsson, M. Laboratory for Quantum Magnetism (LQM), Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland - Laboratory for Neutron Scattering, Paul Scherrer Institut, Villigen PSI, Switzerland - KTH Royal Institute of Technology, Materials Physics, Stockholm, Sweden
Tjernberg, O. KTH Royal Institute of Technology, Materials Physics, Stockholm, Sweden
Drachuck, G. Physics Department, Technion, Israel Institute of Technology, Haifa, Israel
Monomo, M. Department of Applied Sciences, Muroran Institute of Technology, Muroran, Japan
Oda, M. Department of Physics, Hokkaido University, Sapporo, Japan
Kurosawa, T. Department of Physics, Hokkaido University, Sapporo, Japan
Huang, Y. Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing, China
Plumb, N. C. Swiss Light Source, Paul Scherrer Institute, Villigen PSI, Switzerland
Radovic, M. Swiss Light Source, Paul Scherrer Institute, Villigen PSI, Switzerland
Keren, Amit Physics Department, Technion, Israel Institute of Technology, Haifa, Israel
Patthey, Luc Swiss Light Source, Paul Scherrer Institute, Villigen PSI, Switzerland
Mesot, Joël Swiss Light Source, Paul Scherrer Institute, Villigen PSI, Switzerland - Laboratory for Solid State Physics, ETH Zurich, Switzerland - Institut de la Matiere Complexe, EPF Lausanne, Lausanne, Switzerland
Shi, Ming Swiss Light Source, Paul Scherrer Institute, Villigen PSI, Switzerland

07.06.2017

Published in:

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

English 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 shift the primary band along the zone diagonal direction. Furthermore, the folded bands appear only with qa=(π,0) vector, but not with qb=(0,π). We demonstrate that the absence of qb reconstruction is not due to the matrix-element effects in the photoemission process, which indicates the fourfold symmetry is broken in the system.

Faculty

Faculté des sciences et de médecine

Department

Département de Physique

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