128 citations · 733 across the 25 of their papers we have counts for
6 papers · 1 filter
The delta-chain with ferro- and antiferromagnetic interactions in applied magnetic field
D. V. Dmitriev, V. Ya. Krivnov, J. Schnack +1
We study the thermodynamics of the delta-chain with competing ferro- and antiferromagnetic interactions in an external magnetic field which generalizes the field-free case studied…
Accuracy of the finite-temperature Lanczos method compared to simple typicality-based estimates
J. Schnack, J. Richter, R. Steinigeweg
We study trace estimators for equilibrium thermodynamic observables that rely on the idea of typicality and derivatives thereof such as the finite-temperature Lanczos method (FTLM)…
Magnon crystallization in the kagome lattice antiferromagnet
J. Schnack, J. Schulenburg, A. Honecker +1
We present numerical evidence for the crystallization of magnons below the saturation field at non-zero temperatures for the highly frustrated spin-half kagome Heisenberg antiferro…
Combined use of translational and spin-rotational invariance for spin systems
T. Heitmann, J. Schnack
Exact diagonalization and other numerical studies of quantum spin systems are notoriously limited by the exponential growth of the Hilbert space dimension with system size. A commo…
Evidence of Low-Energy Singlet Excited States in the Spin-1/2 Polyhedral Clusters {MoV} and {WV} with Strongly Frustrated Kagomé Networks
T. Kihara, H. Nojiri, Y. Narumi +5
Magnetization, specific heat, and electron spin resonance (ESR) measurements are carried out to clarify the low-energy excitations for the S = 1/2 polyhedral clusters {MoV$_…
Periodic thermodynamics of the Rabi model with circular polarization for arbitrary spin quantum numbers
Heinz-Jürgen Schmidt, Jürgen Schnack, Martin Holthaus
We consider a spin subjected to both a static and an orthogonally applied oscillating, circularly polarized magnetic field while being coupled to a heat bath, and analytically…