FERROELECTRIC NANOSHELL DEVICES

摘要

Disclosed herein are nanoscale devices comprising one or more ferroelectric nanoshells characterized as having an extreme curvature in at least one spatial dimension. Also disclosed are ferroelectric field effect transistors and metal ferroelectric metal capacitors comprising one or more ferroelectric nanoshells. Methods for controlling spontaneous ferroelectric polarization in nanoshell devices are also disclosed.

主权项

1. A method for controlling spontaneous ferroelectric polarization in a nanoshell device comprising:
applying a voltage via one or more electrodes to switch the spontaneous ferroelectric polarization of a nanoshell device, the nanoshell device comprising an inner nanoshell surface having a radius of curvature in the range of from about 3 nm to about 300 nm, an outer nanoshell surface having a radius of curvature in the range of from about 5 nm to about 500 nm, a thickness between said inner nanoshell surface and said outer nanoshell surface in the range of from greater than about 1 nm to less than about 100 nm, and wherein the ferroelectric nanoshell is characterized as being ferroelectric, ferromagnetic, or both.