Resumo

GRIGERA, S. A et al. An intermediate state between the kagome-ice and the fully polarized state in Dy2Ti2O7. Pap. Phys. [online]. 2015, vol.7, n.2. ISSN 1852-4249.

Dy₂ Ti₂O₇ is at present the cleanest example of a spin-ice material. Previous theoretical and experimental work on the first-order transition between the kagome-ice and the fully polarized state has been taken as a validation for the dipolar spinice model. Here we investigate in further depth this phase transition using ac-susceptibility and dc-magnetization, and compare this results with Monte-Carlo simulations and previous magnetization and specific heat measurements. We find signatures of an intermediate state between the kagome-ice and full polarization. This signatures are absent in current theoretical models used to describe spin-ice materials.

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