Gil Drachuck

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

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.Gil Drachuck, Elia Razzoli, 3 Galina Bazalitski, Amit Kanigel, Christof Niedermayer, Ming Shi, and Amit Keren Department of Physics, Technion Israel Institute of Technology, Haifa, 32000, Israel Swiss Light Source, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland Dpartement de Physique and Fribourg Center for Nanomaterials, Universit de Fribourg, CH-1700 Fribourg, Switzerland Laboratory for Neutron Scattering, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland (Dated: February 28, 2014)

The Fermi surface and band folding in La2−xSrxCuO4, probed by angle-resolved photoemission

A systematic angle-resolved photoemission study of the electronic structure of La2−xSrxCuO4 in a wide doping range is presented in this paper. In addition to the main energy band, we observed a weaker additional band, the (π, π) folded band, which shows unusual doping dependence. The appearance of the folded band suggests that a Fermi surface reconstruction is doping dependent and could already occur at zero magnetic field.

Collapsed tetragonal phase transition in LaRu2P2

The structural properties of LaRu

Linking dynamic and thermodynamic properties of cuprates: An angle-resolved photoemission study of ( Ca x La 1 − x ) (Ba 1.75 − x La 0.25 + x )Cu 3 O y ( x = 0.1 and 0.4)

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Parallel and perpendicular susceptibility aboveTcin La2−xSrxCuO4single crystals

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Rotation symmetry breaking in La2-xSrxCuO4 revealed by angle-resolved photoemission spectroscopy

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Opening a nodal gap by fluctuating spin-density wave in lightly dopedLa2−xSrxCuO4

under external pressure have been studied up to 14 GPa, employing high-energy x-ray diffraction in a diamond-anvil pressure cell. At ambient conditions, LaRu

Correlation of the Superconducting Critical Temperature with Spin and Orbital Excitation Energies In (Ca{x}La{1-x})(Ba{1.75-x}La{0.25+x})Cu{3}O{y} as Measured by Resonant Inelastic X-ray Scattering

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Relation between cuprate superconductivity and magnetism: A Raman study of(CaLa)1(BaLa)2Cu3Oy

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New Perspectives for Cuprate Research: (CaxLa1−x)(Ba1.75−xLa0.25+x)Cu3Oy Single Crystals

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