Journal article

Coupled Cu and Mn charge and orbital orders in YBa₂Cu₃O₇/Nd 0.65 (Ca 1-y Sr y ) 0.35 MnO₃ multilayers

  • Perret, Edith Department of Physics and Fribourg Center for Nanomaterials, University of Fribourg, Switzerland - Laboratory for Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland
  • Monney, Claude Department of Physics and Fribourg Center for Nanomaterials, University of Fribourg, Switzerland - Physik-Institut, Universität Zürich, Switzerland
  • Johnston, S. Department of Physics and Astronomy, The University of Tennessee, Knoxville, USA - Joint Institute for Advanced Materials, The University of Tennessee, Knoxville, USA
  • Khmaladze, Jarji Department of Physics and Fribourg Center for Nanomaterials, University of Fribourg, Switzerland
  • Lyzwa, Fryderyk Department of Physics and Fribourg Center for Nanomaterials, University of Fribourg, Switzerland
  • Gaina, Roxana Department of Physics and Fribourg Center for Nanomaterials, University of Fribourg, Switzerland - Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, Villligen, Switzerland
  • Dantz, M. Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland
  • Pelliciari, Jonathan Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland
  • Piamonteze, C. Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland
  • Mallett, B. P. P. Department of Physics and Fribourg Center for Nanomaterials, University of Fribourg, Switzerland - The Photon Factory, The University of Auckland, New Zealand
  • Minola, M. Max-Planck-Institut für Festkörperforschung, Stuttgart, Germany
  • Keimer, B. Max-Planck-Institut für Festkörperforschung, Stuttgart, Germany
  • Schmitt, Thorsten Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland
  • Bernhard, Christian Department of Physics and Fribourg Center for Nanomaterials, University of Fribourg, Switzerland
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    15.08.2018
Published in:
  • Communications Physics. - 2018, vol. 1, no. 1, p. 45
English The observation of a charge density wave in the underdoped cuprate high Tc superconductors (Cu-CDW) raised a debate about its relationship with superconductivity. In bulk YBa2Cu3O7−δ the Cu-CDW is incipient and mainly pinned by defects. Nevertheless, a large magnetic field can induce a true long-range Cu- CDW order as it suppresses superconductivity. An enhanced Cu-CDW order was also observed in YBa2Cu3O7/La2/3Ca1/3MnO3 multilayers. Here, we show that the magnitude of the Cu-CDW in YBa2Cu3O7−δ / Nd0.65(Ca1-ySry)0.35MnO3 multilayers can be varied by adjusting the strength of the manganite charge and orbital order via the Sr content (tolerance factor). Furthermore, we resolve the reconstruction of the crystal field levels of the interfacial Cu ions that are also affected by the manganite charge and orbital order. This tuneable interfacial coupling and Cu- CDW in YBa2Cu3O7−δ can be used for studying the relationship between the Cu- CDW and superconductivity and, possibly, for inducing new intertwined quantum states.
Faculty
Faculté des sciences et de médecine
Department
Département de Physique
Language
  • English
Classification
Physics
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/307492
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