TY - JOUR
T1 - Comprehensive study of the spin-charge interplay in antiferromagnetic La(2-x)Sr(x)CuO4
AU - Drachuck, Gil
AU - Razzoli, Elia
AU - Bazalitski, Galina
AU - Kanigel, Amit
AU - Niedermayer, Christof
AU - Shi, Ming
AU - Keren, Amit
N1 - Funding Information: The Technion team was supported by the Israeli Science Foundation (ISF) and the joint German-Israeli DIP project. E.R. was partially supported by the Fonds National Suisse pour la Recherche Scientifique through Div. II and the Swiss National Center of Competence in Research MaNEP. We thank the SLS, SµS and SINQ beam line staff at the Paul Scherrer Institute for their excellent support.
PY - 2014
Y1 - 2014
N2 - 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 La(2-x)Sr(x)CuO4. with x=1.92%. We perform angle-resolved photoemission spectroscopy measurements as a function of temperature and find: quasi-particle peaks, Fermi surface, anti-nodal gap and below 45 K a nodal gap. Muon spin rotation measurements ensure that the sample is indeed antiferromagnetic and that the doping is close, but below, the spin-glass phase boundary. We also perform elastic neutron scattering measurements and determine the thermal evolution of the commensurate and incommensurate magnetic order, where we find that a nodal gap opens well below the commensurate ordering at 140 K, and close to the incommensurate spin density wave ordering temperature of 30 K.
AB - 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 La(2-x)Sr(x)CuO4. with x=1.92%. We perform angle-resolved photoemission spectroscopy measurements as a function of temperature and find: quasi-particle peaks, Fermi surface, anti-nodal gap and below 45 K a nodal gap. Muon spin rotation measurements ensure that the sample is indeed antiferromagnetic and that the doping is close, but below, the spin-glass phase boundary. We also perform elastic neutron scattering measurements and determine the thermal evolution of the commensurate and incommensurate magnetic order, where we find that a nodal gap opens well below the commensurate ordering at 140 K, and close to the incommensurate spin density wave ordering temperature of 30 K.
UR - http://www.scopus.com/inward/record.url?scp=84903726712&partnerID=8YFLogxK
U2 - https://doi.org/10.1038/ncomms4390
DO - https://doi.org/10.1038/ncomms4390
M3 - مقالة
SN - 2041-1723
VL - 5
SP - 3390
JO - Nature Communications
JF - Nature Communications
M1 - 3390
ER -