Layered perovskites with giant spontaneous polarizations for nonvolatile memories
SCIE
SCOPUS
- Title
- Layered perovskites with giant spontaneous polarizations for nonvolatile memories
- Authors
- Chon, U; Jang, HM; Kim, MG; Chang, CH
- Date Issued
- 2002-08-19
- Publisher
- AMERICAN PHYSICAL SOC
- Abstract
- A series of titanate-based layered perovskites having large values of the spontaneous polarization P-s were developed for their applcations to nonvolatile ferroelectric random access memories. Among these, the Nd-modified bismuth titanate [Bi4-xNdxTi3O12 (BNdT)] system exhibited the most remarkable ferroelectric properties. The c-axis oriented BNdT capacitor was characterized by a switchable remanent polarization 2P(r) of over 100 muC/cm(2) and imprinting and fatigue-free behavior. The active Ti site responsible for the giant P-s was identified with the help of Rietveld analysis, x-ray absorption near-edge structure study, and ab initio quantum computations.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/12417
- DOI
- 10.1103/PhysRevLett.89.087601
- ISSN
- 0031-9007
- Article Type
- Article
- Citation
- PHYSICAL REVIEW LETTERS, vol. 89, no. 8, 2002-08-19
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