Polymer-based magnetoelectric materials: To be or not to be

The authors thank the FCT - Fundacao para a Ciencia e Tecnologia - for financial support under framework of the Strategic Funding UID/FIS/04650/2013 and project PTDC/EEI-SII/5582/2014. Funds provided by FCT in the framework of EuroNanoMed 2016 call, Project LungChek ENMed/0049/2016 are also gratefully acknowledged as well as the FCT grant SFRH/BPD/96227/2013 (PM). The authors also acknowledge funding by the Spanish Ministry of Economy and Competitiveness (MINECO) through theproject MAT2016-76039-C4-3-R (AEI/FEDER, UE) and from the Basque Government Industry Department under the ELKARTEK and HAZITEK program.