TY - JOUR
T1 - First-principles investigation of morphotropic transitions and phase-change functional responses in BiFeO3-BiCoO3 multiferroic solid solutions
AU - Diéguez, Oswaldo
AU - Añiguez, Jorge
PY - 2011/7/26
Y1 - 2011/7/26
N2 - We present an ab initio study of the BFCO solid solution formed by multiferroics BiFeO3 (BFO) and BiFeO3 (BCO). We find that BFCO presents a strongly discontinuous morphotropic transition between BFO-like and BCO-like ferroelectric phases. Further, for all compositions such phases remain (meta)stable and retain well-differentiated properties. Our results thus suggest that an electric field can be used to switch between these structures and show that such a switching involves large phase-change effects of various types, including piezoelectric, electric, and magnetoelectric ones.
AB - We present an ab initio study of the BFCO solid solution formed by multiferroics BiFeO3 (BFO) and BiFeO3 (BCO). We find that BFCO presents a strongly discontinuous morphotropic transition between BFO-like and BCO-like ferroelectric phases. Further, for all compositions such phases remain (meta)stable and retain well-differentiated properties. Our results thus suggest that an electric field can be used to switch between these structures and show that such a switching involves large phase-change effects of various types, including piezoelectric, electric, and magnetoelectric ones.
UR - http://www.scopus.com/inward/record.url?scp=79961120136&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.107.057601
DO - 10.1103/PhysRevLett.107.057601
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AN - SCOPUS:79961120136
SN - 0031-9007
VL - 107
JO - Physical Review Letters
JF - Physical Review Letters
IS - 5
M1 - 057601
ER -