MATERIALS 3 , 083604 ( 2019 ) Structural disorder and magnetic correlations driven by oxygen doping in Nd 2 NiO 4 + δ ( δ ∼ 0 . 11 )

Sumit Ranjan Maity,1,2 Monica Ceretti,3 Lukas Keller,1 Jürg Schefer,1 Tian Shang,4,5,6 Ekaterina Pomjakushina,4 Martin Meven,7 Denis Sheptyakov,1 Antonio Cervellino,5 and Werner Paulus3 1Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, Villigen CH-5232, Switzerland 2University of Geneva, Department of Quantum Matter Physics (DQMP), 24 Quai Ernest Ansermet, CH-1211 Genève 4, Switzerland 3Institut Charles Gerhardt Montpellier, UMR 5253, CNRS-UM-ENSCM, Université de Montpellier, 34095 Montpellier, France 4Laboratory for Multiscale Materials Experiments, Paul Scherrer Institut, Villigen CH-5232, Switzerland 5Swiss Light Source, Paul Scherrer Institut, Villigen CH-5232, Switzerland 6Institute of Condensed Matter Physics, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland 7Institute of Crystallography, RWTH Aachen University and Jülich Centre for Neutron Science (JCNS), Forschungszentrum Jülich GmbH at Heinz Maier-Leibnitz Zentrum (MLZ), 85747 Garching, Germany