33 citations · 37 across the 2 of their papers we have counts for
2 papers
cond-mat2002★ 33 cited
Linear energy bounds for Heisenberg spin systems
H. -J. Schmidt
Recently obtained results on linear energy bounds are generalized to arbitrary spin quantum numbers and coupling schemes. Thereby the class of so-called independent magnon states,…
cond-mat.stat-mech2001★ 4 cited
Approximating parabolas as natural bounds of Heisenberg spectra: Reply on the comment of O. Waldmann
H. -J. Schmidt, J. Schnack, Marshall Luban
O. Waldmann has shown that some spin systems, which fulfill the condition of a weakly homogeneous coupling matrix, have a spectrum whose minimal or maximal energies are rather poor…