4-state anti-ferroelectric random access memory
Research output: Contribution to journal › Article › peer-review
Standard
4-state anti-ferroelectric random access memory. / Vopson, Melvin; Tan, Xiaoli.
In: IEEE Electron Device Letters, Vol. 37, No. 12, 03.10.2016, p. 1551-1554.Research output: Contribution to journal › Article › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - 4-state anti-ferroelectric random access memory
AU - Vopson, Melvin
AU - Tan, Xiaoli
PY - 2016/10/3
Y1 - 2016/10/3
N2 - Ferroelectric random access memory (FRAM) is a 2-state non-volatile memory, in which information is digitally encoded using switchable remanent polarization states within a ferroelectric thin film capacitor. Here we propose a novel nonvolatile memory based on anti-ferroelectric polycrystalline ceramics, termed anti-ferroelectric random access memory (AFRAM). The AFRAM memory cell architecture is similar to FRAM, but it requires a more complex operation protocol. Our initial experimental demonstration of the memory effect in antiferroelectric ceramic shows, remarkably, that the AFRAM technology encodes data in both ferroelectric sublattices of the anti-ferroelectric medium. This results in a 4-state non-volatile memory capable of storing 2 digital bits simultaneously, unlike the FRAM technology that has 2-memory states and it is capable to store 1 digital bit per cell.
AB - Ferroelectric random access memory (FRAM) is a 2-state non-volatile memory, in which information is digitally encoded using switchable remanent polarization states within a ferroelectric thin film capacitor. Here we propose a novel nonvolatile memory based on anti-ferroelectric polycrystalline ceramics, termed anti-ferroelectric random access memory (AFRAM). The AFRAM memory cell architecture is similar to FRAM, but it requires a more complex operation protocol. Our initial experimental demonstration of the memory effect in antiferroelectric ceramic shows, remarkably, that the AFRAM technology encodes data in both ferroelectric sublattices of the anti-ferroelectric medium. This results in a 4-state non-volatile memory capable of storing 2 digital bits simultaneously, unlike the FRAM technology that has 2-memory states and it is capable to store 1 digital bit per cell.
KW - random access memory
KW - nonvolatile memory
KW - computer architecture
KW - microprocessors
KW - ferroelectic films
KW - capacitors
KW - hysteresis
U2 - 10.1109/LED.2016.2614841
DO - 10.1109/LED.2016.2614841
M3 - Article
VL - 37
SP - 1551
EP - 1554
JO - IEEE Electron Device Letters
JF - IEEE Electron Device Letters
SN - 0741-3106
IS - 12
ER -
ID: 4926919