184 citations · 949 across the 21 of their papers we have counts for
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Frustrated Quantum Antiferromagnets: Application of High-Order Coupled Cluster Method
J. Richter, R. Darradi, R. Zinke +1
We report on recent results for strongly frustrated quantum - antiferromagnets in dimensionality d=1,2,3 obtained by the coupled cluster method (CCM). We demonstrate that…
Universal properties of highly frustrated quantum magnets in strong magnetic fields
Oleg Derzhko, Johannes Richter, Andreas Honecker +1
The purpose of the present paper is two-fold. On the one hand, we review some recent studies on the low-temperature strong-field thermodynamic properties of frustrated quantum spin…
Entanglement in the Majumdar-Ghosh model
Ravindra W. Chhajlany, Piotr Tomczak, Antoni Wojcik +1
We present an analysis of the entanglement characteristics in the Majumdar-Ghosh (MG) or - Heisenberg model. For a system consisting of up to 28 spins, there is a dev…
Exact eigenstates of highly frustrated spin lattices probed in high fields
J. Schnack, H. -J. Schmidt, A. Honecker +2
Strongly frustrated antiferromagnets such as the magnetic molecule {Mo72Fe30}, the kagome, or the pyrochlore lattice exhibit a variety of fascinating properties like low-lying sing…
Finite-temperature order-disorder phase transition in a frustrated bilayer quantum Heisenberg antiferromagnet in strong magnetic fields
Johannes Richter, Oleg Derzhko, Taras Krokhmalskii
We investigate the thermodynamic properties of the frustrated bilayer quantum Heisenberg antiferromagnet at low temperatures in the vicinity of the saturation magnetic field. The l…
Linear independence of localized magnon states
Heinz-Jürgen Schmidt, Johannes Richter, Roderich Moessner
At the magnetic saturation field, certain frustrated lattices have a class of states known as "localized multi-magnon states" as exact ground states. The number of these states sca…