Elasticity of quasi-bcc ammonia hemihydrate at high pressures

doi:10.1088/1674-1056/ae330a

中国物理B ›› 2026, Vol. 35 ›› Issue (3): 36101-036101.doi: 10.1088/1674-1056/ae330a

所属专题： SPECIAL TOPIC — Structures and properties of materials under high pressure

Elasticity of quasi-bcc ammonia hemihydrate at high pressures

Mengqiong Pu(蒲梦琼), Jiacheng Zhang(张家诚), Xinyang Li(李新阳)†, Xiaomei Yuan(苑晓美), Xue Zhang(张雪), Shuo Gao(高硕), Chenlu Wang(王晨璐), Liang Li(李亮), Fangfei Li(李芳菲), and Qiang Zhou(周强)

Synergetic Extreme Condition High-Pressure Science Center, State Key Laboratory of High Pressure and Superhard Materials, College of Physics, Jilin University, Changchun 130012, China

收稿日期:2025-11-24 修回日期:2025-12-24 接受日期:2026-01-04 出版日期:2026-02-11 发布日期:2026-03-03
通讯作者: Xinyang Li E-mail:lixinyang@jlu.edu.cn
基金资助:
This work was supported by the Synergetic Extreme Condition User Facility (SECUF), the National Natural Science Foundation of China (Grants Nos. 42472065, 12274168, and 42102030), the Jilin Provincial Science and Technology Development Project (Grant No. SKL202502017JC), the Technology Development Plan Project of Changchun, China (Grant No. 2024GZZ06), the Project of ”Medical+X” Interdisciplinary Innovation Team of Norman Bethune Health Science Center of Jilin University (Grant No. 2025JBGS03).

Elasticity of quasi-bcc ammonia hemihydrate at high pressures

Synergetic Extreme Condition High-Pressure Science Center, State Key Laboratory of High Pressure and Superhard Materials, College of Physics, Jilin University, Changchun 130012, China

Received:2025-11-24 Revised:2025-12-24 Accepted:2026-01-04 Online:2026-02-11 Published:2026-03-03
Contact: Xinyang Li E-mail:lixinyang@jlu.edu.cn
Supported by:
This work was supported by the Synergetic Extreme Condition User Facility (SECUF), the National Natural Science Foundation of China (Grants Nos. 42472065, 12274168, and 42102030), the Jilin Provincial Science and Technology Development Project (Grant No. SKL202502017JC), the Technology Development Plan Project of Changchun, China (Grant No. 2024GZZ06), the Project of ”Medical+X” Interdisciplinary Innovation Team of Norman Bethune Health Science Center of Jilin University (Grant No. 2025JBGS03).

摘要/Abstract

摘要： Ammonia hydrates are important components in planetary interiors, among which ammonia hemihydrate (AHH) exhibits remarkable stability under high pressure. In this study, we report for the first time the elastic properties of the recently discovered quasibcc ammonia hemihydrate (AHH-$q$bcc) at high pressures, using externally heated diamond anvil cells combined with Raman spectroscopy and Brillouin scattering. We synthesized single crystals of AHH-$q$bcc in the diamond anvil cell (DAC). Subsequently, we measured its full elastic tensor up to 17.6 GPa at room temperature via Brillouin scattering. The results show that the elastic constants increase linearly with increasing pressure. Based on the obtained elastic constants, we calculated the bulk modulus, shear modulus, Poisson's ratio, and velocity anisotropy. The results reveal significant anisotropy in wave velocities and Poisson's ratio on the (110) crystallographic plane of AHH-$q$bcc. Compared to ice VII, AHH-$q$bcc has a lower bulk modulus and shear modulus, yet exhibits a higher compressional wave velocity and a similar shear wave velocity. Our findings provide important constraints for understanding the internal structure and seismic velocity profiles of icy planets.

关键词: high pressure, ammonia hemihydrate, Brillouin scattering, Raman spectroscopy

Abstract: Ammonia hydrates are important components in planetary interiors, among which ammonia hemihydrate (AHH) exhibits remarkable stability under high pressure. In this study, we report for the first time the elastic properties of the recently discovered quasibcc ammonia hemihydrate (AHH-$q$bcc) at high pressures, using externally heated diamond anvil cells combined with Raman spectroscopy and Brillouin scattering. We synthesized single crystals of AHH-$q$bcc in the diamond anvil cell (DAC). Subsequently, we measured its full elastic tensor up to 17.6 GPa at room temperature via Brillouin scattering. The results show that the elastic constants increase linearly with increasing pressure. Based on the obtained elastic constants, we calculated the bulk modulus, shear modulus, Poisson's ratio, and velocity anisotropy. The results reveal significant anisotropy in wave velocities and Poisson's ratio on the (110) crystallographic plane of AHH-$q$bcc. Compared to ice VII, AHH-$q$bcc has a lower bulk modulus and shear modulus, yet exhibits a higher compressional wave velocity and a similar shear wave velocity. Our findings provide important constraints for understanding the internal structure and seismic velocity profiles of icy planets.

Key words: high pressure, ammonia hemihydrate, Brillouin scattering, Raman spectroscopy

中图分类号: (Crystallographic aspects of phase transformations; pressure effects)

61.50.Ks

07.35.+k (High-pressure apparatus; shock tubes; diamond anvil cells) 52.38.Bv (Rayleigh scattering; stimulated Brillouin and Raman scattering) 91.60.Lj (Acoustic properties)

Mengqiong Pu(蒲梦琼), Jiacheng Zhang(张家诚), Xinyang Li(李新阳), Xiaomei Yuan(苑晓美), Xue Zhang(张雪), Shuo Gao(高硕), Chenlu Wang(王晨璐), Liang Li(李亮), Fangfei Li(李芳菲), and Qiang Zhou(周强). Elasticity of quasi-bcc ammonia hemihydrate at high pressures[J]. 中国物理B, 2026, 35(3): 36101-036101.

参考文献

[1] Lunine J I and Stevenson D J 1987 Icarus 70 61
[2] Guillot T 2005 Annu. Rev. Earth Planet. Sci. 33 493
[3] Ohta K 2023 Nat. Phys. 19 1227
[4] Helled R, Anderson J D, Podolak M and Schubert G 2011 Astrophys. J. 726 15
[5] Teanby N A, Irwin P G J, Moses J I and Helled R 2020 Phil. Trans. R. Soc. A 378 20190489
[6] Helled R, Nettelmann N and Guillot T 2020 Space Sci. Rev. 216 38
[7] Tobie G, Grasset O, Lunine J I, Mocquet A and Sotin C 2005 Icarus 175 496
[8] Waite Jr J H, Lewis W S, Magee B A, Lunine J I, McKinnon W B, Glein C R, Mousis O, Young D T, Brockwell T, Westlake J, Nguyen M J, Teolis B D, Niemann H B, McNutt Jr R L, Perry M and IpWH 2009 Nature 460 487
[9] Grasset O, Bunce E J, Coustenis A, Dougherty M K, Erd C, Hussmann H, Jaumann R and Prieto-Ballesteros O 2013 Astrobiology 13 991
[10] Sohl F, Solomonidou A, Wagner F W, Coustenis A, Hussmann H and Schulze-Makuch D 2014 J. Geophys. Res.: Planets 119 1013
[11] Fortes A D and Choukroun M 2010 Space Sci. Rev. 153 185
[12] Fagents S A, Lopes RMC, Quick L C and Gregg T K P 2022 Planetary Volcanism Across the Solar System, (Amsterdam: Elsevier), pp. 161- 234
[13] Li X, Shi W, Liu X and Mao Z 2019 Am. Mineral. 104 1307
[14] Zhang H, Datchi F, Andriambariarijaona L M, Zhang G, Queyroux J A, Beneut K, Mezouar M and Ninet S 2020 J. Chem. Phys. 153 154503
[15] Wilson CW, Bull C L, Stinton G and Loveday J S 2012 J. Chem. Phys. 136 094506
[16] Wilson C W, Bull C L, Stinton G W, Amos D M, Donnelly M E and Loveday J S 2015 J. Chem. Phys. 142 094707
[17] Naden Robinson V, Marques M, Wang Y, Ma Y and Hermann A 2018 J. Chem. Phys. 149 234501
[18] Liu C, Mafety A, Queyroux J A, Wilson C W, Zhang H, Beneut K, Le Marchand G, Baptiste B, Dumas P, Garbarino G, Finocchi F, Loveday J S, Pietrucci F, Saitta A M, Datchi F and Ninet S 2017 Nat. Commun. 8 1065
[19] Zhu J, Feng D,Wang L, Li L, Li F, Zhou Q and Yan Y 2025 Chin. Phys. B 34 066102
[20] Liu Y, Wang Z, Li B, Zhao H, Wang S, Chen L, Ma H and Jia X 2023 Chin. Phys. B 32 128102
[21] Zhao M, Wu B, Liu J and Lei L 2023 Chin. Phys. B 32 090704
[22] Loveday J S and Nelmes R J 2004 High Pressure Res. 24 45
[23] Ma C, Li F, Zhou Q, Huang F, Wang J, Zhang M, Wang Z and Cui Q 2012 RSC Adv. 2 4920
[24] Xu W, Robinson V N, Zhang X, Zhang H C, Donnelly M E, Dalladay- Simpson P, Hermann A, Liu X D and Gregoryanz E 2021 Phys. Rev. Lett. 126 015702
[25] Andriambariarijaona L, Datchi F, Zhang H, Béneut K, Baptiste B, Guignot N and Ninet S 2023 Phys. Rev. B 108 174102
[26] Grimsditch M H and Ramdas A K 1975 Phys. Rev. B 11 3139
[27] Ma C, Wu X, Huang F, Zhou Q, Li F and Cui Q 2012 J. Chem. Phys. 137 104504
[28] Zhang C, Li F, Wei X, Guo M, Wei Y, Li L, Li X and Zhou Q 2022 Chin. Phys. Lett. 39 096201
[29] Ding S, Zhu Y, Liu Y L, Siu G G, Lee C M and Jiang Y J 2005 Chin. Phys. Lett. 22 1790
[30] He X K, Zeng L B,Wu Q S, Zhang L Y, Zhu K and Liu Y L 2012 Chin. Phys. B 21 067801
[31] Xia H, Zhang W, Li Z, Qu X, Chen K and Zhang X 1993 Chin. Phys. Lett. 10 627
[32] Xia H, Peng R, ZhangW, Hu A, Jiang S and Zhang X 1993 Chin. Phys. Lett. 10 569
[33] Shi L W, Duan Y F and Qin L X 2010 Chin. Phys. Lett. 27 080505
[34] Shi X H, Liu B, Yao Z and Liu B B 2020 Chin. Phys. Lett. 37 047101
[35] Wang Z G, Liu Y G, ZhouWG, SongW, Bi Y, Liu L and Xie H S 2013 Chin. Phys. Lett. 30 054302
[36] Pu M, Li X, Yuan X, Geng Y, Ouyang Y, Wang C, Zhang J, Li L, Li F and Zhou Q 2025 Phys. Rev. B 111 174109
[37] Shen G, Wang Y, Dewaele A, Wu C, Fratanduono D E, Eggert J, Klotz S, Dziubek K F, Loubeyre P, Fat’yanov O V, Asimow P D, Mashimo T and Wentzcovitch R M M 2020 High Pressure Res. 40 299
[38] Benedek G B and Fritsch K 1966 Phy. Rev. 149 647
[39] Whitfield C H, Brody E M and Bassett W A 1976 Rev. Sci. Instrum. 47 942
[40] Every A G 1980 Phys. Rev. B 22 1746
[41] Wu Z J, Zhao E J, Xiang H P, Hao X F, Liu X J and Meng J 2007 Phys. Rev. B 76 054115
[42] Marmier A, Lethbridge Z A D, Walton R I, Smith CW, Parker S C and Evans K E 2010 Comput. Phys. Commun. 181 2102

Elasticity of quasi-bcc ammonia hemihydrate at high pressures

Elasticity of quasi-bcc ammonia hemihydrate at high pressures

RichHTML

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

本文评价

推荐阅读 0

[1]	Yanling Wu(吴艳玲), Q. Wu(吴穹), X. Yin(尹霞), Y. X. Huang(黄逸轩), Takeshi Nakagawa, Z. Y. Tian(田珍耘), Fei Sun(孙飞), Q. M. Zhang(张清明), Jun Chang(昌峻), Ho-kwang Mao(毛河光), Yang Ding(丁阳), and Jimin Zhao(赵继民). Phonon bottleneck effect due to finite shrinking gap revealed by high-pressure ultrafast dynamics[J]. 中国物理B, 2026, 35(3): 37802-037802.
[2]	Tao Wang(王涛), Ming-Hong Wen(温铭洪), Kai-Xuan Wang(王凯璇), Jia-Mei Liu(刘佳美), Wei-Hua Wang(王伟华), Xu-Ying Wang(王旭颖), and Pei-Fang Li(李培芳). Structural stability and mechanical properties of Ni_xMo_yN ternary nitrides under high pressure: A first-principles study[J]. 中国物理B, 2026, 35(3): 36102-036102.
[3]	Lun Xiong(熊伦), Mingquan Jiang(江明全), Jinxia Zhu(竹锦霞), Lin Xia(夏林), Hao Wang(王毫), Shenghan Zhang(张升瀚), Pengfei Tang(汤鹏飞), Zhiqiang Chen(陈志强), Sheng Jiang(蒋升), and Hongliang Dong(董洪亮). Physical properties of Cr₂S₃ at high pressure[J]. 中国物理B, 2026, 35(3): 36103-036103.
[4]	Rui Wang(王睿), Cai-Zi Zhang(张才姿), Qi-Wen Jiang(蒋其雯), En-Yu Wang(王恩宇), Jie Wei(魏杰), and Hong-Yang Zhu(祝洪洋). Structural stability and properties of Li₂XN₆ (X = Be, Mg, Ca) ternary nitrides[J]. 中国物理B, 2026, 35(3): 36201-036201.
[5]	Qiru Zeng(曾琪茹), Youjun Zhang(张友君), Yukai Zhuang(庄毓凯), Linfei Yang(杨林飞), Qiming Wang(王齐明), and Yi Sun(孙熠). Pressure-induced amorphization and metallization in orthorhombic SiP[J]. 中国物理B, 2025, 34(9): 96102-096102.
[6]	Guoshuai Du(杜国帅), Yubing Du(杜玉冰), Jiaxin Ming(明嘉欣), Zhixi Zhu(朱芷希), Jiaohui Yan(闫皎辉), Jiayin Li(李嘉荫), Tiansong Zhang(张天颂), Lina Yang(杨哩娜), Ke Jin(靳柯), and Yabin Chen(陈亚彬). Tunable thermal conductivity and mechanical properties of metastable silicon by phase engineering[J]. 中国物理B, 2025, 34(9): 96401-096401.
[7]	Xiao-Zhen Yan(颜小珍), Quan-Xian Wu(邬泉县), Lei-Lei Zhang(张雷雷), and Yang-Mei Chen(陈杨梅). Pressure-stabilized Li₂K electride with superconducting behavior[J]. 中国物理B, 2025, 34(9): 97405-097405.
[8]	Siyu Hou(侯思羽), Jiaxiang Wang(王家祥), Yijia Huang(黄乙甲), Ruijing Fu(付瑞净), and Lingrui Wang(王玲瑞). Pressure-induced band gap closing of lead-free halide double perovskite (CH₃NH₃)₂PtI₆[J]. 中国物理B, 2025, 34(8): 86106-086106.
[9]	Boyang Fu(符博洋), Wenfeng Zhou(周文风), Fuyang Liu(刘扶阳), Luhong Wang(王鲁红), Haozhe Liu(刘浩哲), Sheng-Ping Guo(郭胜平), and Weizhao Cai(蔡伟照). Structural evolution and bandgap modification of a robust mixed-valence compound Eu₉MgS₂B₂₀O₄₁ under pressure[J]. 中国物理B, 2025, 34(8): 86102-086102.
[10]	Liangchao Chen(陈良超), Xinyuan Miao(苗辛原), Zhuangfei Zhang(张壮飞), Biao Wan(万彪), Yuewen Zhang(张跃文), Qianqian Wang(王倩倩), Longsuo Guo(郭龙锁), and Chao Fang(房超). Low-temperature photoluminescence study of optical centers in HPHT-diamonds[J]. 中国物理B, 2025, 34(8): 86103-086103.
[11]	Xiaoci Ma(马孝慈), Yufei Ge(葛雨非), Yutong Hou(侯语同), Keyu Shi(施柯羽), Jiaqi Zhang(张佳琪), Gaoping Yue(岳高平), Qiang Tao(陶强), and Pinwen Zhu(朱品文). Heterogeneous TiC-based composite ceramics with high toughness[J]. 中国物理B, 2025, 34(8): 86104-086104.
[12]	Zhuang Li(李壮), Cun You(由存), Zhihui Li(李志慧), Xuepeng Li(李雪鹏), Guiqian Sun(孙贵乾), Xinglin Wang(王星淋), Qi Jia(贾琪), Qiang Tao(陶强), and Pinwen Zhu(朱品文). Synergistic improvements in mechanical and thermal performance of TiB₂ solid-solution-based composites[J]. 中国物理B, 2025, 34(8): 86105-086105.
[13]	Xiao Ma(马晓), Tao Wang(王涛), Jianfeng Wen(文剑锋), Zhenwei Zhou(周振玮), and Hongyu Zhu(朱红玉). First-principles study on structural, electronic, and superconducting properties of Laves-phase alloy HfZn₂ under pressure[J]. 中国物理B, 2025, 34(8): 86108-086108.
[14]	Min Wu(吴旻) and Zhongsen Sun(孙忠森). Structure and properties of MgO melt at high pressure: A first-principles study[J]. 中国物理B, 2025, 34(8): 86301-086301.
[15]	Xiangjiang Dong(董祥江), Bowen Zhang(张博文), Xubin Ye(叶旭斌), Peng Wei(魏鹏), Lei Lian(廉磊), Ning Sun(孙宁), Youwen Long(龙有文), Shangjie Tian(田尚杰), Shouguo Wang(王守国), Hechang Lei(雷和畅), and Runze Yu(于润泽). High pressure growth of transition-metal monosilicide RhGe single crystals[J]. 中国物理B, 2025, 34(8): 88101-088101.