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| Reversible devitrification in amorphous As2Se3 under pressure | |
| Ahmad, AS; Lou, HB; Lin, CL; Li, AG; Yang, K; Glazyrin, K; Liermann, HP; Franz, H; Stahl, K; Cui, S; Bureau, B; Zhang, DX; Wang, XD; Cao, QP; Greer, AL; Jiang, JZ; 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. | |
| 2016 | |
| Source Publication | PHYSICAL REVIEW B
 |
| ISSN | 2469-9950 |
| Volume | 94Issue:19Pages:- |
| Subtype | 期刊论文 |
| Abstract | 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. |
| DOI | 10.1103/PhysRevB.94.195211 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000388818000012 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/26615 |
| Collection | 中科院上海应用物理研究所2011-2018年 |
| Corresponding Author | 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. |
| Recommended Citation 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):-. |
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| Reversible devitrifi（1958KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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