We investigate a ferromagnetic spin-1 Ising model with a transverse single-ion crystal-field term. By means of a mapping to the usual spin-1/2 transverse Ising model, we determine the location of the $T=0$ quantum critical point exactly in one dimension, and to high precision in higher dimensions. The nature of the excited states is also explored. We show how this approach can be generalized to higher spin values.We investigate a ferromagnetic spin-1 Ising model with a transverse single-ion crystal-field term. By means of a mapping to the usual spin-1/2 transverse Ising model, we determine the location of the $T=0$ quantum critical point exactly in one dimension, and to high precision in higher dimensions. The nature of the excited states is also explored. We show how this approach can be generalized to higher spin values.

Physical review. B, Condensed matterMay 8, 200333 citations

SPIN-1 ISING FERROMAGNET IN A RANDOM CRYSTAL FIELD

C. E. I. Carneiro, Vera B. Henriques, M. N. Tamashiro +1 more

Elsevier eBooksJan 1, 19910 citations

We investigate a ferromagnetic spin-1 Ising model with a transverse single-ion crystal-field term. By means of a mapping to the usual spin-1/2 transverse Ising model, we determine the location of the

T=0

quantum critical point exactly in one dimension, and to high precision in higher dimensions. The nature of the excited states is also explored. We show how this approach can be generalized to higher spin values.