Spin-Density Wave near the Vortex Cores of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$

Abstract

Competition with magnetism is at the heart of high temperature superconductivity, most intensely felt near a vortex core. To investigate vortex magnetism we have developed a spatially resolved probe using nuclear magnetic resonance. Our spin-lattice-relaxation spectroscopy is spatially resolved both within a conduction plane as well as from one plane to another. With this approach we have found a spin-density wave associated with the vortex core in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$, which is expected from scanning tunneling microscope observations of "checkerboard" patterns in the local density of electronic states.[1] We determine both the spin-modulation amplitude and decay length from the vortex core in fields up to H=30 T.

7 pages, 5 figures

References in corpus (5)

• A `checkerboard' electronic crystal state in lightly hole-doped Ca_{2-x}Na_{x}CuO_{2}Cl_{2}
• Charge density wave origin of cuprate checkerboard visualized by scanning tunneling microscopy
• Charge modulation, spin response, and dual Hofstadter butterfly in high-Tc cuprates
• Two-dimensional Vortices in Superconductors
• Calculated NMR T_2 relaxation due to vortex vibrations in cuprate superconductors