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- Title
Influence of yttrium element on the crystallization performance of ZnSb alloy for phase change memory application.
- Authors
Fu, Bowen; Wu, Weihua; Zhang, Pei; Gu, Han; Zhou, Xiaochen; Zhu, Xiaoqin
- Abstract
The crystallization behavior and electrical performance of Y-doped Zn15Sb85 phase change material were proposed and experimental examined. The relationship between the resistance and temperature reveals that the Y dopant is able to enhancing the thermal stability (Tc ~ 237°C, T10 ~ 169 °C) and resistivity (Ra ~ 105 Ω, Rc ~ 102 Ω) of Zn15Sb85 films, which are suitable for automobile design and surface mount technology. XRD results indicate that the Y dopant could effectively inhibit grain growth and reduce grain size. Meanwhile, XPS illustrates that Y is more likely to form bonds with Sb. Further, the resistance drift index and surface roughness become small after doping Y element, which is of great benefit to improving the reliability and electrical performance of the device. Moreover, T-shaped phase change memory cells based on Y0.36(Zn15Sb85)0.64 film were also built and analyzed. The characteristic of current − voltage (I-V) and resistance − voltage (R-V) prove that the SET and RESET operations can be achieved by electric induction, implying the excellent candidate of Y-doped Zn15Sb85 material for high thermal and high reliability application.
- Subjects
PHASE change memory; SURFACE mount technology; ELECTRIC displacement; YTTRIUM; CRYSTALLIZATION; SHAPE memory alloys; PHASE change materials
- Publication
European Physical Journal - Applied Physics, 2023, Vol 98, Issue 1, p1
- ISSN
1286-0042
- Publication type
Article
- DOI
10.1051/epjap/2023230054