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

Perret, Edith; Monney, Claude; Johnston, S.; Khmaladze, Jarji; Lyzwa, Fryderyk; Gaina, Roxana; Dantz, M.; Pelliciari, Jonathan; Piamonteze, C.; Mallett, B. P. P.; Minola, M.; Keimer, B.; Schmitt, Thorsten; Bernhard, Christian

doi:10.1038/s42005-018-0046-z

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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

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

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