New type memory of ferroelectric thin films is proposed. Writing of information is performed by localheating of the film by laser beam up to the Curie temperature or above and cooling the film in external electric field. Reading can be made by nondestructive methods including pyroelectricity, piezoelectricity, birefringence, optical activity and photovoltaic effect.
机构:
Hong Kong Univ Sci & Technol, Dept Mech Engn, Kowloon, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China