Abstract
The spin Hamiltonian for a bcc cluster of 16 atoms interacting via ring exchanges up through 6-spins has been diagonalized exactly. The calculatedH c1 is close to the experimental value. Using a Gaussian ensemble the “phase diagram” for this system has been derived.
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Sun, Z., Hetherington, J.H. Exact diagonalization of a 16-spin cluster of solid3He. J Low Temp Phys 89, 519–522 (1992). https://doi.org/10.1007/BF00694077
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DOI: https://doi.org/10.1007/BF00694077