$\Delta$S$^z$=2 quantum magnetization discontinuities proportional in number to the spin s in C$_{60}$: Origin and the role of symmetry
Nikolaos P. Konstantinidis
Abstract:The quantum antiferromagnetic Heisenberg model on the fullerene C_{60}60 in a magnetic field has 4s4s ground-state magnetization discontinuities with \Delta S^z=2ΔSz=2 as a function of the spin quantum number ss that disappear at the classical limit. The molecule can be seen as the fullerene C_{20}20 with interpentagon interactions that generate the discontinuities when sufficiently strong. The discontinuities originate from the antiferromagnetic Ising limit for both molecules. The results show how spatial sym… Show more
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