| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
|
|
|
|
Reexploration of Structural Changes in Element Bromine through Pressure-Induced Decomposition of Solid HBr |
| Ming-Kun Liu, De-Fang Duan, Yan-Ping Huang, Yong-Fu Liang, Xiao-Li Huang**, Tian Cui** |
State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012
|
|
| Cite this article: |
|
Ming-Kun Liu, De-Fang Duan, Yan-Ping Huang et al 2019 Chin. Phys. Lett. 36 086401 |
|
|
|
|
Abstract Simple molecular solids have been an important subject in condensed matter physics, particularly for research of pressure-induced molecular dissociation. We re-explore the structural changes of element bromine through pressure-induced decomposition of solid HBr. The phase changes in HBr are investigated by Raman spectroscopy and synchrotron x-ray diffraction up to 125 GPa at room temperature. By applying pressure, HBr decomposes into solid bromine in the pressure range of 18.7–38 GPa. The solid bromine changes from molecular phase to incommensurate phase at 81 GPa, and finally to monatomic phase at 91 GPa. During the process of pressure-induced molecular dissociation, the intermediate incommensurate phase of element bromine is confirmed for the first time from the x-ray diffraction studies. The decomposition of HBr is irreversible since HBr cannot form again upon pressure decompression.
|
|
Received: 01 July 2019
Published: 22 July 2019
|
|
| PACS: |
64.60.-i
|
(General studies of phase transitions)
|
| |
62.50.-p
|
(High-pressure effects in solids and liquids)
|
| |
64.70.Rh
|
(Commensurate-incommensurate transitions)
|
| |
91.60.Hg
|
(Phase changes)
|
|
|
| Fund: Supported by the National Natural Science Foundation of China under Grant Nos 51572108, 51632002, 11504127, 11674122, 11574112, 11474127 and 11634004, the 111 Project (No B12011), Program for Changjiang Scholars and Innovative Research Team in University (No IRT-15R23), and the National Fund for Fostering Talents of Basic Science (No J1103202). |
|
|
|
| [1] | Ashcroft N 2004 Phys. Rev. Lett. 92 187002 | | [2] | Drozdov A P, Eremets M I, Troyan I A, Ksenofontov V and Shylin S I 2015 Nature 525 73 | | [3] | Duan D, Liu Y, Tian F, Li D, Huang X, Zhao Z, Yu H, Liu B, Tian W and Cui T 2015 Sci. Rep. 4 6968 | | [4] | Huang X, Wang X, Duan D, Sundqvist B, Li X, Huang Y, Li F, Zhou Q, Liu B and Cui T 2016 Nat. Sci. Rev. (accepted) | | [5] | Drozdov A P, Kong P P, Minkov V S and Eremets M I 2019 Nature 569 528 | | [6] | Drozdov A P, Eremets M I and Troyan I 2015 arXiv:1508.06224 | | [7] | Liu M, Huang X, Wang X, Huang Y, Li F, Wu G, Li X, Liang Y, Zhou D, Lu M, Liu B and Cui T 2018 J. Raman Spectrosc. 49 721 | | [8] | Ikeda T, Sprik M, Terakura K and Parrinello M 1998 Phys. Rev. Lett. 81 4416 | | [9] | Katoh E, Yamawaki H, Sakashita M and Aoki K 1999 Phys. Rev. B 59 11244 | | [10] | Kume T, Sasaki S and Shimizu H 1999 Physica B 265 97 | | [11] | Takashi Ikeda M S, Terakura K and Parrinello M 1999 Physica B 265 101 | | [12] | Matsumi Y, Tonokura K, Kawasaki M and Ibuki T 1990 J. Chem. Phys. 93 7981 | | [13] | Szczȩśniak R, Zemła T P and Szczȩśniak D 2016 Physica B 495 106 | | [14] | Shamp A and Zurek E 2015 J. Phys. Chem. Lett. 6 4067 | | [15] | Straaten J and Silvera I F 1986 Phys. Rev. Lett. 57 766 | | [16] | Duan D, Tian F, Huang X, Li D, Yu H, Liu Y, Ma Y, Liu B and Cui T 2015 arXiv:1504.01196v1 | | [17] | Kume T, Tsuji T, Sasaki S and Shimizu H 1999 Physica B 263–264 795 | | [18] | Eremets M I 2003 J. Raman Spectrosc. 34 515 | | [19] | Hammersley A P, Svensson S O, Hanfl, M, Fitch A N and Hausermann D 1996 High Press. Res. 14 235 | | [20] | Smith D K, Fiala J and Ryba E 1993 Powder Diffr. 8 252 | | [21] | Kume T, Hiraoka T, Ohya Y, Sasaki S and Shimizu H 2005 Phys. Rev. Lett. 94 065506 | | [22] | Jiang S, Huang X, Duan D, Zheng S, Li F, Yang X, Zhou Q, Liu B and Cui T 2014 J. Phys. Chem. C 118 3236 | | [23] | Li F, Duan D, Li M, Ma C, Cui Q, Cui T, Zhou Q, Li X, Li Y, Liu J and Zou G 2012 J. Raman Spectrosc. 43 526 | | [24] | Starr F W, Nielsen J K and Stanley H E 1999 Phys. Rev. Lett. 82 2294 | | [25] | Duan D F, Liu Y H, Ma Y M, Liu Z M, Cui T, Liu B B and Zou G T 2007 Phys. Rev. B 76 104113 |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
