2012/12/14 by M. Huecker, M. Hücker, M. v. Zimmermann +7
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Algorithm #Charge (physics) #Computer science #Magnetic and transport properties of perovskites and related materials #Order (exchange) #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.87.014501
published as Phys. Rev. B 87, 014501 (2013) · 6 pages, 4 figures
arxiv created 2012/12/14 · openalex publication_date 2013/01/02 · arxiv updated 2015/06/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The effect of a magnetic field on the charge stripe order in La_2\ensuremath-xBaxCuO4 has been studied by means of high-energy (100 keV) x-ray diffraction for charge carrier concentrations ranging from strongly underdoped to optimally doped. We find that charge stripe order can be significantly enhanced by a magnetic field applied along the c axis, but only at temperatures and dopings where it coexists with bulk superconductivity at zero field. The field also increases stripe correlations between the planes, which can result in an enhanced frustration of the interlayer Josephson coupling. Close to the famous x=(1)/(8) compound, where zero field stripe order is pronounced and bulk superconductivity is suppressed, charge stripe order is independent of a magnetic field. The results for La_2\ensuremath-xBaxCuO4 resemble recent observations in YBa2Cu3O_6+\ensuremathδ and, independent of potential differences in the microscopic origin of charge order in these two compounds, imply a very similar competition with three-dimensionally coherent superconductivity.