Thermally mediated multiferroic composites for the magnetoelectric materials

TitleThermally mediated multiferroic composites for the magnetoelectric materials
Publication TypeJournal Article
Year of Publication2010
AuthorsLu SG, Fang Z, Furman E, Wang Y, Zhang QM, Mudryk Y, Gschneidner KA, Pecharsky VK, Nan CW
Journal TitleApplied Physics Letters
Volume96
Pages102902
Date Published03/08
ISBN Number0003-6951
Accession NumberISI:000275588000059
Keywordstemperature
Abstract

A magnetoelectric (ME) composite through thermal mediation is presented, which is different from the traditional strain/stress mediated ME composites. The ME laminate uses the large magnetocaloric effect, that is, a temperature change induced in the ferromagnetic Gd crystal by a magnetic field, and a large pyroelectric response in the relaxor ferroelectric polymer. Consequently, a simple laminate composite can produce a ME response similar to 0.5 V/(cm Oe). The ME coefficient was further enhanced to similar to 0.9 V/(cm Oe) by exploiting the magnetic flux concentration effect. The approach opens up an avenue in developing ME materials for broad range of applications. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3358133]

URL<Go to ISI>://000275588000059
DOI10.1063/1.3358133