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Updated: Nov 2, 2025

Synthesis of Non-uniformly Pr-doped SrTiO3 Ceramics and Their Thermoelectric Properties
Published on: August 15, 2015
Route to tunable room temperature electric polarization in SrTiO3-CoFe2O4 heterostructures
Laura Maurel1,2, Javier Herrero-Martín3, Federico Motti1,2
1Laboratory for Mesoscopic Systems, Department of Materials, ETH Zurich 8093 Zurich Switzerland laura.maurel.v@gmail.com valerios@ethz.ch.
Abstract:
Utilizing the magnetostrictive properties of CoFe2O4, we demonstrate reversible room temperature control of the Ti electronic structure in SrTiO3-CoFe2O4 heterostructures, by inducing local and reversible strain in the SrTiO3. By means of X-ray absorption spectroscopy, we have ascertained the changes that take place in the energy levels of the Ti 3d orbitals under the influence of an external magnetic field. The observed Ti electronic state when the sample is subjected to moderately large external magnetic fields and the disappearance of the induced phase upon their removal indicates lattice distortions that are suggestive of the development of a net electric polarization.
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