title: Three-dimensional charge density wave order in YBa2Cu3O6.67 at high magnetic fields.
abstract: Charge density wave (CDW) correlations have been shown to universally exist in cuprate superconductors. However, their nature at high fields inferred from nuclear magnetic resonance is distinct from that measured with x-ray scattering at zero and low fields. We combined a pulsed magnet with an x-ray free-electron laser to characterize the CDW in YBa2Cu3O6.67 via x-ray scattering in fields of up to 28 tesla. While the zero-field CDW order, which develops at temperatures below ~150 kelvin, is essentially two dimensional, at lower temperature and beyond 15 tesla, another three-dimensionally ordered CDW emerges. The field-induced CDW appears around the zero-field superconducting transition temperature; in contrast, the incommensurate in-plane ordering vector is field-independent. This implies that the two forms of CDW and high-temperature superconductivity are intimately linked.
authors.affiliation: Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory and Stanford University, Menlo Park, CA 94025, USA.
authors.forename: S
authors.initials: S
authors.lastname: Gerber
authors.affiliation: Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
authors.forename: H
authors.initials: H
authors.lastname: Jang
authors.affiliation: Institute for Materials Research, Tohoku University, Katahira 2-1-1, Sendai, 980-8577, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Nojiri
authors.affiliation: Institute for Materials Research, Tohoku University, Katahira 2-1-1, Sendai, 980-8577, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Matsuzawa
authors.affiliation: Institute for Materials Research, Tohoku University, Katahira 2-1-1, Sendai, 980-8577, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Yasumura
authors.affiliation: Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada. Canadian Institute for Advanced Research, Toronto, Ontario M5G 1Z8, Canada.
authors.forename: D A
authors.initials: DA
authors.lastname: Bonn
authors.affiliation: Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada. Canadian Institute for Advanced Research, Toronto, Ontario M5G 1Z8, Canada.
authors.forename: R
authors.initials: R
authors.lastname: Liang
authors.affiliation: Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada. Canadian Institute for Advanced Research, Toronto, Ontario M5G 1Z8, Canada.
authors.forename: W N
authors.initials: WN
authors.lastname: Hardy
authors.affiliation: The Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA.
authors.forename: Z
authors.initials: Z
authors.lastname: Islam
authors.affiliation: Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
authors.forename: A
authors.initials: A
authors.lastname: Mehta
authors.affiliation: Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
authors.forename: S
authors.initials: S
authors.lastname: Song
authors.affiliation: Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
authors.forename: M
authors.initials: M
authors.lastname: Sikorski
authors.affiliation: Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
authors.forename: D
authors.initials: D
authors.lastname: Stefanescu
authors.affiliation: Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
authors.forename: Y
authors.initials: Y
authors.lastname: Feng
authors.affiliation: Geballe Laboratory for Advanced Materials, Departments of Physics and Applied Physics, Stanford University, Stanford, CA 94305, USA.
authors.forename: S A
authors.initials: SA
authors.lastname: Kivelson
authors.affiliation: Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory and Stanford University, Menlo Park, CA 94025, USA.
authors.forename: T P
authors.initials: TP
authors.lastname: Devereaux
authors.affiliation: Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory and Stanford University, Menlo Park, CA 94025, USA. Geballe Laboratory for Advanced Materials, Departments of Physics and Applied Physics, Stanford University, Stanford, CA 94305, USA.
authors.forename: Z-X
authors.initials: ZX
authors.lastname: Shen
authors.affiliation: SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
authors.forename: C-C
authors.initials: CC
authors.lastname: Kao
authors.affiliation: Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory and Stanford University, Menlo Park, CA 94025, USA. dlzhu@slac.stanford.edu leews@stanford.edu jslee@slac.stanford.edu.
authors.forename: W-S
authors.initials: WS
authors.lastname: Lee
authors.affiliation: Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA. dlzhu@slac.stanford.edu leews@stanford.edu jslee@slac.stanford.edu.
authors.forename: D
authors.initials: D
authors.lastname: Zhu
authors.affiliation: Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA. dlzhu@slac.stanford.edu leews@stanford.edu jslee@slac.stanford.edu.
authors.forename: J-S
authors.initials: JS
authors.lastname: Lee