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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…
Finite-temperature ordering in a two-dimensional highly frustrated spin model
A. Honecker, D. C. Cabra, H. -U. Everts +2
We investigate the classical counterpart of an effective Hamiltonian for a strongly trimerized kagome lattice. Although the Hamiltonian only has a discrete symmetry, the classical…
High field magnetisation of the frustrated one dimensional quantum antiferromagnet LiCuVO4
M. G. Banks, F. Heidrich-Meisner, A. Honecker +3
We have investigated the high field magnetisation of the frustrated one dimensional compound LiCuVO4. In zero field, LiCuVO4 undergoes long range antiferromagnetic order at T_{N} ~…
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…
Strong disorder fixed points in the two-dimensional random-bond Ising model
Marco Picco, Andreas Honecker, Pierre Pujol
The random-bond Ising model on the square lattice has several disordered critical points, depending on the probability distribution of the bonds. There are a finite-temperature mul…
Frustrated ferromagnetic spin-1/2 chain in a magnetic field: The phase diagram and thermodynamic properties
F. Heidrich-Meisner, A. Honecker, T. Vekua
The frustrated ferromagnetic spin-1/2 Heisenberg chain is studied by means of a low-energy field theory as well as the density-matrix renormalization group and exact diagonalizatio…