Multiferroic Properties of Self-Aligned BiMnO_3 Nanosquares

摘要

We investigate the ferroelectric properties of epitaxial BiMnO_3 (BMO) nanosquares and thin films deposited by pulsed laser deposition techniques. The size of the BMO nanosquares is found to increase as the deposition time increases. The multiferroic BMO nanosquares exhibit ferroelectric and ferromagnetic characteristics. The BMO nanosquares with upward and downward ferroelectric polarizations exhibit low and high resistance states, respectively.