Fig. 4 | Nature Communications

Fig. 4

From: Phase transitions in few-monolayer spin ice films

Fig. 4The alternative text for this image may have been generated using AI.

Two-dimensional (2D) F-model realisation. a Residual of the specific heat for the series of thin films xDTO||YTO(100) with x = 4, 8, 44 monolayers, after subtraction of the bulk DTO contribution. The full line (grey) is the exact solution for the 2D F-model with splitting parameter ε = 0.55 K. Inset shows energy splitting of the Pauling manifold, that is, from six degenerate states per tetrahedron to two ground states plus four excited states. b Splitting parameter dependence of the calculated 2D F-model residual specific heat (lines) plotted against 8DTO||YTO(100) as a guide to the eye. DTO Dy2Ti2O7, YTO Y2Ti2O7

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