Systematic materials design for phase-change memory with small density changes for high-endurance non-volatile memory applications

Yuta Saito, Shogo Hatayama, Yi Shuang, Satoshi Shindo, Paul Fons, Alexander V. Kolobov, Keisuke Kobayashi, Yuji Sutou

研究成果: Article査読

5 被引用数 (Scopus)

抄録

The optical properties of transition-metal-based ternary tellurides have been systematically examined by density functional theory simulations. Based on an empirical law, which correlates density change with the optical contrast between the amorphous and crystalline phases of chalcogenides, the density changes occurring upon crystallization for hypothetical materials have been predicted. Cr2Ge2Te6 was found theoretically to be one of the best materials for phase-change memory applications owing to its small density change. This novel criterion will be useful in the screening of materials yet to be experimentally realized, and will help target promising materials for high-endurance phase-change memory applications.

本文言語English
論文番号051008
ジャーナルApplied Physics Express
12
5
DOI
出版ステータスPublished - 2019 5月 1

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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