%0 Conference Paper
%K energy efficiency
%K iron
%K Transient analysis
%K ferroelectricity
%K negative capacitance
%K Ferroelectric devices
%K Ferroelectric capacitors
%K Single-crystalline
%K Capacitance
%K Ferroelectric switching
%K Capacitors
%K Resistors
%K Semiconductor devices
%K Switches
%K External resistors
%K Semiconductor device measurements
%K Subthreshold characteristics
%K Transistor structure
%A A.I Khan
%A K Chatterjee
%A Ramamoorthy Ramesh
%A S Salahuddin
%B 2015 4th Berkeley Symposium on Energy Efficient Electronic Systems, E3S 2015 - Proceedings
%D 2015
%G eng
%I Institute of Electrical and Electronics Engineers Inc.
%R 10.1109/E3S.2015.7336793
%T Understanding negative capacitance dynamics in ferroelectric capacitors
%@ 9781467385688
%X We investigate negative capacitance transients-the time period during ferroelectric switching when the voltage across a ferroelectric changes in a direction opposite to that of the charge-by constructing a simple series network of an isolated single crystalline ferroelectric capacitor and an external resistor. A study of negative capacitance dynamics in such a circuit reveals that the time scale of this phenomenon is controlled by the external resistor rather than by the material dependent intrinsic speeds. As a canonical approach for directly measuring ferroelectric negative capacitance, these experiments could guide the efforts to stabilize negative capacitance in a transistor structure for sub-60 mV/decade subthreshold characteristics as well as help assess negative capacitance response speed at technologically relevant dimensions. © 2015 IEEE.