Differential voltage amplification from ferroelectric negative capacitance

作者：Khan Asif I; Hoffmann Michael; Chatterjee Korok; Lu Zhongyuan; Xu Ruijuan; Serrao Claudy; Smith Samuel; Martin Lane W; Hu Chenming; Ramesh Ramamoorthy; Salahuddin Sayeef

来源：Applied Physics Letters, 2017, 111(25): 253501.

DOI：10.1063/1.5006958

<jats:p>We demonstrate that a ferroelectric can cause a differential voltage amplification without needing an external energy source. As the ferroelectric switches from one polarization state to the other, a transfer of energy takes place from the ferroelectric to the dielectric, determined by the ratio of their capacitances, which, in turn, leads to the differential amplification. This amplification is very different in nature from conventional inductor-capacitor based circuits where an oscillatory amplification can be observed. The demonstration of differential voltage amplification from completely passive capacitor elements only has fundamental ramifications for next generation electronics.</jats:p>

• 出版日期2017-12-18