TY - JOUR
KW - Domain walls
KW - Bismuth compounds
KW - Domain structure
KW - Epitaxial films
KW - Strain control
KW - Stress concentration
KW - Thermodynamic stability
KW - Ferroelastic domain stability
KW - Piezoelectric force microscopy (PEM)
AU - M.P Cruz
AU - Y.H Chu
AU - J.X Zhang
AU - P.L Yang
AU - F Zavaliche
AU - Q He
AU - P Shafer
AU - L.Q Chen
AU - Ramamoorthy Ramesh
AB - We have studied the stability of domains and domain walls in multiferroic BiFeO3 thin films using a combination of piezoelectric force microscopy and phase-field simulations. We have discovered that a film-substrate misfit strain may result in a drastically different thermodynamic stability of two parallel domain walls with the same orientation. A fundamental understanding of the underlying physics, the stress distribution in a domain structure, leads to a novel approach to control the ferroelastic domain stability in the multiferroic BiFeO3 system. © 2007 The American Physical Society.
BT - Physical Review Letters
DO - 10.1103/PhysRevLett.99.217601
LA - eng
M1 - 21
N1 - cited By 87
N2 - We have studied the stability of domains and domain walls in multiferroic BiFeO3 thin films using a combination of piezoelectric force microscopy and phase-field simulations. We have discovered that a film-substrate misfit strain may result in a drastically different thermodynamic stability of two parallel domain walls with the same orientation. A fundamental understanding of the underlying physics, the stress distribution in a domain structure, leads to a novel approach to control the ferroelastic domain stability in the multiferroic BiFeO3 system. © 2007 The American Physical Society.
PB - American Physical Society
PY - 2007
T2 - Physical Review Letters
TI - Strain control of domain-wall stability in epitaxial BiFeO3 (110) films
VL - 99
SN - 00319007
ER -