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History Dependent Phenomena in the Transverse Ising Ferro-Glass: the Free Energy Landscape

Grest, Gary S.

In this paper the authors investigate the relationship between glassy and ferromagnetic phases in disordered Ising ferromagnets in the presence of transverse magnetic fields, {Lambda}. Iterative mean field simulations probe the free energy landscape and suggest the existence of a glass transition line in the {Lambda}, temperature T plane well within the ferromagnetic phase. New experimental field-cooled and zero-field-cooled data on LiHo{sub x} Y{sub 1{minus}x}F{sub 4} provide support for our theoretical picture.