info:eu-repo/semantics/conferenceProceedings
White lines and electron occupancy for Ti 3d states in BaTiO3 by EELS
Autor
VERONICA GALLEGOS OROZCO
AUDEL SANTOS BELTRAN
FRANCISCO ESPINOSA MAGAÑA
Resumen
The electronic structure plays an important role in the study of phase transformations.
Ferroelectric BaTiO3 exists in polymorphs of different crystal symmetries related by simple
displacive transformations. Among all posible phase transformations, the most important is the
cubic to tetragonal ferroelectric transition, at TC = 120°C. The permanent electrical dipole is
the most important feature in this transformation. The potential applications of these materials
are in ultrahigh-density information storage, including dynamic random access memory
(DRAM), thermistors, electro-optic devices, varistors, multiplayer capacitors, etc [1].
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