The magnetic Hamiltonian and phase diagram of the quantum spin liquid Ca 10 Cr

Christian Balz, 2, ∗ Bella Lake, 2 A.T.M. Nazmul Islam, Yogesh Singh, Jose A. Rodriguez-Rivera, 5 Tatiana Guidi, Elisa M. Wheeler, Giovanna G. Simeoni, and Hanjo Ryll Helmholtz-Zentrum Berlin für Materialien und Energie, 14109 Berlin, Germany Institut für Festkörperphysik, Technische Universität Berlin, 10623 Berlin, Germany† Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, Mohali 140306, India NIST Center for Neutron Research, National Institute of Standards and Technology, 20899 Gaithersburg, USA Department of Materials Science, University of Maryland, College Park, 20742 Maryland, USA ISIS Facility, STFC Rutherford Appleton Laboratory, Oxfordshire OX11 0QX, UK Institut Laue-Langevin, 38042 Grenoble, France Heinz Maier-Leibnitz Zentrum, Technische Universitat München, 85748 Garching, Germany (Dated: April 20, 2017)