Reversible devitrification in amorphous As2Se3 under pressure
文献类型：期刊论文
| 作者 | Ahmad, AS; Lou, HB; Lin, CL; Li, AG; Yang, K; Glazyrin, K; Liermann, HP; Franz, H; Stahl, K; Cui, S |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2016 |
| 卷号 | 94期号:19页码:- |
| ISSN号 | 2469-9950 |
| 通讯作者 | Jiang, JZ (reprint author), Zhejiang Univ, Sch Mat Sci & Engn, Int Ctr New Struct Mat, Hangzhou 310027, Peoples R China. ; Jiang, JZ (reprint author), Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon Mat, Lab New Struct Mat, Hangzhou 310027, Peoples R China. |
| 英文摘要 | In pressure-induced reversible structural transitions, the term "reversible" refers to the recovery of the virgin structure in a material upon complete decompression. Pressure-induced amorphous-to-crystalline transitions have been claimed to be reversible, but evidence that amorphous material recovers its virgin amorphous structure upon complete depressurization has been lacking. In amorphous As2Se3 (a-As2Se3) chalcogenide, however, we report a novel reversible amorphous-to-crystalline transition that provides compelling experimental evidence that upon complete decompression, the recovered amorphous phase is structurally the same as that of the virgin (as-cast) amorphous phase. Combining the experimental results with ab initio molecular dynamics simulations, we elucidate that the amorphization ismediated by a surplus of total free energy in the high-pressure face-centered cubic phase as compared to the virgin amorphous phase and that the structural recovery to the virgin amorphous phase is a consequence of an enhancement in covalent bonding character over interlayer forces upon complete decompression. Furthermore, we observed a two-dimensional to three-dimensional network transition under compression and its reversibility upon decompression. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000388818000012 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/26615]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Ahmad, AS,Lou, HB,Lin, CL,et al. Reversible devitrification in amorphous As2Se3 under pressure[J]. PHYSICAL REVIEW B,2016,94(19):-. |
| APA | Ahmad, AS.,Lou, HB.,Lin, CL.,Li, AG.,Yang, K.,...&Jiang, JZ.(2016).Reversible devitrification in amorphous As2Se3 under pressure.PHYSICAL REVIEW B,94(19),-. |
| MLA | Ahmad, AS,et al."Reversible devitrification in amorphous As2Se3 under pressure".PHYSICAL REVIEW B 94.19(2016):-. |
入库方式： OAI收割
来源：上海应用物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。