Comprehensive study of the spin-charge interplay in antiferromagnetic La(2-x)Sr(x)CuO4

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

פרסום מחקרי: פרסום בכתב עתמאמרביקורת עמיתים

תקציר

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.

שפה מקוריתאנגלית
מספר המאמר3390
עמודים (מ-עד)3390
מספר עמודים1
כתב עתNature Communications
כרך5
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 2014

ASJC Scopus subject areas

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  • ???subjectarea.asjc.1300.1300???
  • ???subjectarea.asjc.3100.3100???

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