topotactic
/təˈpɒtəkˌætɪk/Definitions
1. adjective
Describing a type of phase transition where the crystal structure remains unchanged, but the occupancy of lattice sites by atoms changes.
“The topotactic transformation in the material was observed under high pressure conditions.”
2. noun
A phase transition that is topotactic in nature.
“The researchers studied the topotactic phase transition in the new material.”
3. verb
To undergo a topotactic phase transition.
“The material topotactically transformed under the influence of the external field.”