Experimental Evidence of Ferroelectric Negative Capacitance in Nanoscale Heterostructures

Details Experimental Evidence of Ferroelectric Negative Capacitance in Nanoscale Heterostructures Experimental Evidence of Ferroelectric Negative Capacitance in Nanoscale Heterostructures

2011-03-22

arxiv.org/abs/1103.4419v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

We report a proof-of-concept demonstration of negative capacitance effect in a nanoscale ferroelectric-dielectric heterostructure. In a bilayer of ferroelectric, Pb(Zr0.2Ti0.8)O3 and dielectric, SrTiO3, the composite capacitance was observed to be larger than the constituent SrTiO3 capacitance, indicating an effective negative capacitance of the constituent Pb(Zr0.2Ti0.8)O3 layer. Temperature is shown to be an effective tuning parameter for the ferroelectric negative capacitance and the degree of capacitance enhancement in the heterostructure. Landau's mean field theory based calculations show qualitative agreement with observed effects. This work underpins the possibility that by replacing gate oxides by ferroelectrics in MOSFETs, the sub threshold slope can be lowered below the classical limit (60 mV/decade).

Affiliated with

Also associated with

No associations

Rating

Experimental Evidence of Ferroelectric Negative Capacitance in Nanoscale Heterostructures does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Experimental Evidence of Ferroelectric Negative Capacitance in Nanoscale Heterostructures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Experimental Evidence of Ferroelectric Negative Capacitance in Nanoscale Heterostructures will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-440522