Physics – Condensed Matter – Materials Science
Scientific paper
2009-07-30
Physics
Condensed Matter
Materials Science
4 pages with 1 figure embedded. More information at http://www.icmab.es/dmmis/leem/jorge
Scientific paper
10.1103/PhysRevLett.103.267205
We present a first-principles scheme for computing the magnetoelectric response of multiferroics. We apply our method to BiFeO3 (BFO) and related compounds in which Fe is substituted by other magnetic species. We show that under certain relevant conditions -- i.e., in absence of incommensurate spin modulation, as in BFO thin films and some BFO-based solid solutions -- these materials display a large linear magnetoelectric response. Our calculations reveal the atomistic origin of the coupling and allow us to identify the most promising strategies to enhance it.
Íñiguez Jorge
Wojdel Jacek C.
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