The puzzle of the γ→α and other phase transitions in cerium
A.V. Tsvashchenkoc,b aInstitute of Physical Chemistry and Electro Chemistry, Russian Academy of Sciences, Leninskii prosp. 31, Moscow, 119991, Russian Federation bLomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Leninskie Gory 1 build. 2, Moscow, 119991, Russian Federation cInstitute for High Pressure Physics, Russian Academy of Sciences, Troitsk, Moscow, Russian Federation
We discuss recent research on phase transitions in cerium under pressure, including new experiments on the γ→α transition, which indicate that it is a hidden structural phase transition. We also discuss some models of relevance to the field, both theoretical and computational.