| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
|
|
|
|
Evidence for a High-Pressure Isostructural Transition in Nitrogen |
| Chunmei Fan1, Shan Liu1, Jingyi Liu1, Binbin Wu1, Qiqi Tang1, Yu Tao1, Meifang Pu1, Feng Zhang1, Jianfu Li2, Xiaoli Wang2*, Duanwei He1, Chunyin Zhou3, and Li Lei1* |
1Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
2School of Opto-Electronic Information Science and Technology, Yantai University, Yantai 264005, China
3Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
|
|
| Cite this article: |
|
Chunmei Fan, Shan Liu, Jingyi Liu et al 2022 Chin. Phys. Lett. 39 026401 |
|
|
|
|
Abstract We observed an isostructural phase transition in the solid nitrogen $\lambda$-N$_{2}$ at approximately 50 GPa accompanied by anomalies in lattice parameters, atomic volume and Raman vibron modes. The anomalies are ascribed to a slight reorientation of the nitrogen molecules, which does not seem to affect the monoclinic symmetry (space group $P2_{1}/c$). Our ab initio calculations further confirm the phenomena, and suggest an optimized structure for the $\lambda$-N$_{2}$ phase. In addition, a new high-pressure amorphous phase of $\eta '$-N$_{2}$ was also discovered by a detailed investigation of the pressure-temperature phase diagram of nitrogen with the aim of probing the phase stability of $\lambda$-N$_{2}$. Our result may provide helpful information about the crystallographic nature of dissociation transitions in diatomic molecular crystals (H$_{2}$, O$_{2}$, N$_{2}$, etc).
|
|
Received: 05 January 2022
Express Letter
Published: 23 January 2022
|
|
|
|
|
|
|
|
| [1] | Pratesi G, Cicco A D, Minicucci M, and Itiè J P 2005 J. Phys.: Condens. Matter 17 2625 |
| [2] | Li Z and Tse J S 2000 Phys. Rev. Lett. 85 5130 |
| [3] | Kechin V V 2001 Phys. Rev. B 63 045119 |
| [4] | Occelli F et al. 2004 Phys. Rev. Lett. 93 095502 |
| [5] | Ma Y M et al. 2005 Phys. Rev. B 72 174103 |
| [6] | Dubrovinsky L et al. 2015 Nature 525 226 |
| [7] | Li G et al. 2014 RSC Adv. 4 42523 |
| [8] | Sun L, Kikegawa T, Wu Q, Zhan Z, and Wang W 2001 Chin. Phys. Lett. 18 1401 |
| [9] | Queyroux J A et al. 2020 Phys. Rev. Lett. 125 195501 |
| [10] | Datchi F et al. 2006 Phys. Rev. B 73 174111 |
| [11] | Ninet S et al. 2009 Phys. Rev. B 79 100101(R) |
| [12] | Ji C et al. 2019 Nature 573 558 |
| [13] | Akahama Y, Kawamura H, Hausermann D, Hanfland M, and Shimomura O 1995 Phys. Rev. Lett. 74 4690 |
| [14] | Freiman Y A, Jodl H J, and Crespo Y 2018 Phys. Rep. 743 1 |
| [15] | Jiang S et al. 2018 Nat. Commun. 9 2624 |
| [16] | Loubeyre P, Occelli F, and Dumas P 2020 Nature 577 631 |
| [17] | Li Y W et al. 2018 Nat. Commun. 9 722 |
| [18] | Shi X H, Liu B, Yao Z, and Liu B B 2020 Chin. Phys. Lett. 37 047101 |
| [19] | Wu B B et al. 2021 Matter Radiat. Extremes 6 038401 |
| [20] | Miao J Y, Lu Z S, Peng L, and Lu C 2021 Chin. Phys. Lett. 38 066201 |
| [21] | Wang X L et al. 2012 Phys. Rev. Lett. 109 175502 |
| [22] | Schuch A F and Mills R L 1970 J. Chem. Phys. 52 6000 |
| [23] | Streib W E, Jordan T H, and Lipscomb W N 1962 J. Chem. Phys. 37 2962 |
| [24] | Zinn A S, Schiferl D S, and Nicol M F 1987 J. Chem. Phys. 87 1267 |
| [25] | Mills R L and Schuch A F 1969 Phys. Rev. Lett. 23 1154 |
| [26] | Olijnyk H 1990 J. Chem. Phys. 93 8968 |
| [27] | Scheerboom M I M and Schouten J A 1993 Phys. Rev. Lett. 71 2252 |
| [28] | Hanfland M, Lorenzen M, Wassilew-Reul C, and Zontone F 1998 Rev. High Press. Sci. Technol. 7 787 |
| [29] | Stinton G W, Loa I, Lundegaard L F, and McMahon M I 2009 J. Chem. Phys. 131 104511 |
| [30] | Eremets M I et al. 2004 J. Chem. Phys. 121 11296 |
| [31] | Gregoryanz E, Goncharov A F, Hemley R J, and Mao H K 2001 Phys. Rev. B 64 052103 |
| [32] | Gregoryanz E et al. 2007 J. Chem. Phys. 126 184505 |
| [33] | Gregoryanz E 2002 Phys. Rev. B 66 224108 |
| [34] | Ma Y, Oganov A R, Li Z, Xie Y, and Kotakoski J 2009 Phys. Rev. Lett. 102 065501 |
| [35] | Laniel D, Geneste G, Weck G, Mezouar M, and Loubeyre P 2019 Phys. Rev. Lett. 122 066001 |
| [36] | Lei L, Tang Q Q, Zhang F, Liu S, Wu B B, and Zhou C Y 2020 Chin. Phys. Lett. 37 068101 |
| [37] | Ji C et al. 2020 Sci. Adv. 6 eaba9206 |
| [38] | Laniel D et al. 2020 Phys. Rev. Lett. 124 216001 |
| [39] | Eremets M I, Hemley R J, Mao H K, and Gregoryanz E 2001 Nature 411 170 |
| [40] | Pu M F, Liu S, Lei L, Zhang F, Feng L H, Qi L, and Zhang L L 2019 Solid State Commun. 298 113645 |
| [41] | Frost M, Howie R T, Dalladay-Simpson P, Goncharov A F, and Gregoryanz E 2016 Phys. Rev. B 93 024113 |
| [42] | Liu S, Pu M, Tang Q Q, Zhang F, Wu B B, and Lei L 2020 Solid State Commun. 310 113843 |
| [43] | Sontising W and Beran G J 2019 Phys. Rev. Mater. 3 095002 |
| [44] | Pickard C J and Needs R J 2009 Phys. Rev. Lett. 102 125702 |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
