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Updated: Jul 11, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Crystalline phase of strongly interacting fermi mixtures
D S Petrov1, G E Astrakharchik, D J Papoular
1Laboratoire de Physique Théorique et Modèles Statistiques, CNRS, Université Paris Sud, 91405 Orsay, France.
Abstract:
We show that the system of weakly bound molecules of heavy and light fermionic atoms is characterized by a long-range intermolecular repulsion and can undergo a gas-crystal quantum transition if the mass ratio exceeds a critical value. For the critical mass ratio above 100 obtained in our calculations, this crystalline order can be observed as a superlattice in an optical lattice for heavy atoms with a small filling factor. We also find that this novel system is sufficiently stable with respect to molecular relaxation into deep bound states and to the process of trimer formation.
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