We analyze the quantum antiferromagnet on the maple leaf lattice in the presence of a magnetic field. Starting from its exact dimer ground state and for a magnetic field strength of the order of the local dimer spin exchange coupling, we perform a strong coupling expansion and extract an effective hardcore boson model. The interplay of effective many-body interactions, suppressed single-particle dynamics, and correlated hopping gives way to an intriguing series of superfluid to insulator transitions which correspond to magnetization plateaux in terms of the maple leaf spin degrees of freedom. While we find plateaux at intermediate magnetization to be dominated by bosonic density wave order, we conjecture plateau formation from multi-boson bound states due to correlated hopping for lower magnetization.
An extended non-magnetic phase in the spin-1/2 Heisenberg antiferromagnet from the ruby to the maple-leaf lattice
Freie Universität Berlin（柏林自由大学）；University of Cologne（科隆大学）；Helmholtz-Zentrum Berlin für Materialien und Energie（柏林亥姆霍兹材料与能源中心）；Indian Institute of Technology Madras（马德拉斯印度理工学院）
Thermodynamics of the Heisenberg antiferromagnet on the maple-leaf lattice
Helmholtz-Zentrum Berlin für Materialien und Energie（亥姆霍兹柏林材料能源中心）；Dahlem Center for Complex Quantum Systems and Fachbereich Physik, Freie Universität Berlin（达勒姆复杂量子系统中心与柏林自由大学物理系）；Max Planck Institute for the Physics of Complex Systems（马克斯·普朗克复杂系统物理研究所）；Institute of Physics, University of Bonn（波恩大学物理研究所）
Spin excitation of the Heisenberg antiferromagnet with frustration: from the bounce-lattice antiferromagnet through the maple-leaf-lattice antiferromagnet to the exact-dimer system
Graduate School of Science, University of Hyogo（兵库大学理学研究科）；National Institute for Quantum Science and Technology (QST) SPring-8（量子科学技术研究开发机构SPring-8）
Exact quantum spin liquids with topological order on maple-leaf and trellis lattices
Max Planck Institute for the Physics of Complex Systems（马克斯·普朗克复杂系统物理研究所）；T.C.M. Group, Cavendish Laboratory, University of Cambridge（剑桥大学卡文迪许实验室 T.C.M. 组）
