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典型文献
Direct H-He chemical association in superionic FeO2H2He at deep-Earth conditions
文献摘要:
Hydrogen and helium are known to play crucial roles in geological and astrophysical environments;however,they are inert toward each other across wide pressure-temperature(P-T)conditions.Given their prominent presence and influence on the formation and evolution of celestial bodies,it is of fundamental interest to explore the nature of interactions between hydrogen and helium.Using an advanced crystal structure search method,we have identified a quaternary compound FeO2H2He stabilized in a wide range of P-T conditions.Ab initio molecular dynamics simulations further reveal a novel superionic state of FeO2H2He hosting liquid-like diffusive hydrogen in the FeO2He sublattice,creating a conducive environment for H-He chemical association,at P-T conditions corresponding to the Earth's lowest mantle regions.To our surprise,this chemically facilitated coalescence of otherwise immiscible molecular species highlights a promising avenue for exploring this long-sought but hitherto unattainable state of matter.This finding raises strong prospects for exotic H-He mixtures inside Earth and possibly also in other astronomical bodies.
文献关键词:
作者姓名:
Jurong Zhang;Hanyu Liu;Yanming Ma;Changfeng Chen
作者机构:
International Center for Computational Method and Software&State Key Laboratory of Superhard Materials&Key Laboratory of Physics and Technology for Advanced Batteries(Ministry of Education),College of Physics,Jilin University,Changchun 130012,China;Shandong Provincial Engineering and Technical Center of Light Manipulations&Shandong Provincial Key Laboratory of Optics and Photonic Device,School of Physics and Electronics,Shandong Normal University,Jinan 250358,China;International Center of Future Science,Jilin University,Changchun 130012,China;Department of Physics and Astronomy,University of Nevada,Las Vegas,NV 89154,USA
引用格式:
[1]Jurong Zhang;Hanyu Liu;Yanming Ma;Changfeng Chen-.Direct H-He chemical association in superionic FeO2H2He at deep-Earth conditions)[J].国家科学评论(英文版),2022(07):56-63
A类:
FeO2H2He,FeO2He
B类:
Direct,association,superionic,deep,Earth,conditions,Hydrogen,helium,are,known,play,crucial,roles,geological,astrophysical,environments,however,they,inert,toward,each,across,wide,pressure,temperature,Given,their,prominent,presence,influence,formation,evolution,celestial,bodies,fundamental,interest,explore,nature,interactions,between,hydrogen,Using,advanced,crystal,structure,search,method,have,identified,quaternary,compound,stabilized,range,Ab,initio,molecular,dynamics,simulations,further,reveal,novel,state,hosting,liquid,like,diffusive,sublattice,creating,conducive,corresponding,lowest,mantle,regions,To,our,surprise,this,chemically,facilitated,coalescence,otherwise,immiscible,species,highlights,promising,avenue,exploring,long,sought,but,hitherto,unattainable,matter,This,finding,raises,strong,prospects,exotic,mixtures,inside,possibly,also,astronomical
AB值:
0.700363
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