128 citations · 793 across the 55 of their papers we have counts for
3 papers · 1 filter
Symplectic integrators for classical spin systems
Robin Steinigeweg, Heinz-Jürgen Schmidt
We suggest a numerical integration procedure for solving the equations of motion of certain classical spin systems which preserves the underlying symplectic structure of the phase…
Classes of integrable spin systems
Robin Steinigeweg, Heinz-Jürgen Schmidt
We investigate certain classes of integrable classical or quantum spin systems. The first class is characterized by the recursively defined property saying that the spin system…
Metamagnetic phase transition of the antiferromagnetic Heisenberg icosahedron
Christian Schröder, Heinz-Jürgen Schmidt, Jürgen Schnack +1
The observation of hysteresis effects in single molecule magnets like Mn-acetate has initiated ideas of future applications in storage technology. The appearance of a hyster…