外延
亚稳态
材料科学
兴奋剂
氧气
分子束外延
基质(水族馆)
凝聚态物理
结晶学
分析化学(期刊)
化学物理
矿物学
纳米技术
化学
光电子学
物理
有机化学
地质学
海洋学
色谱法
图层(电子)
作者
Yanhan Fang,Wenjie Sun,Lu Han,Zeya Li,Haoying Sun,H. Q. Yuan,Zheng‐Bin Gu,Yuefeng Nie
出处
期刊:Journal of vacuum science & technology
[American Vacuum Society]
日期:2021-12-28
卷期号:40 (1)
被引量:4
摘要
In doped manganites, a substantial tuning of the magnetic and electrical transport properties can be realized by engineering the concentration of oxygen vacancies. To date, most oxygen-deficient La1−xSrxMnO3−δ (0 ≤ x ≤ 1) films are synthesized by after-growth treatments. However, the direct growth of La1−xSrxMnO3−δ films remains challenging due to the metastability of this material. Here, we report the epitaxial growth of high quality single crystalline La0.67Sr0.33MnO3−δ films with an extremely large out-of-plane lattice parameter of 4.26 Å by reactive oxide molecular beam epitaxy. To stabilize this metastable phase, Sr3Al2O6 buffer layers are used to block the oxygen diffusion from the SrTiO3 substrate to the film during the growth process. This work provides an efficient way to obtain metastable La0.67Sr0.33MnO3−δ films.
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