金属氢的基态及超导电性

Ground State and Superconductivity of Metallic Hydrogen

LI Jun-jie^1,2, ZHENG Wei-tao³, JIN Zeng-sun¹ , ZHU Zai-wan², WANG Cui⁴

1. National Laboratory of Superhard Material, Jilin University, Changchun 130023, P.R.China;2. Department of Physics, College of Science and Engineering, Yanbian University, Yanji 133002, P.R.China;3. College of Materials Science and Engineering, Jilin University, Changchun 130023, P.R.China; 4. School of Information and Control Engineering, Qingdao College of Chemical Engineering,Qingdao 266042, P.R.China

Received:2001-09-12 Revised:1900-01-01 Online:2002-01-26 Published:2002-01-26
Contact: LI Jun-jie

Abstract

Abstract: In this paper, the expression of ground state energy in metallic hydrogen system is given, the possible structure of metallic hydrogen as well as the mechanical and the thermal properties of this matter is investigated. The calculation shows metallic hydorgen with an fcc structure is on the favorable energy situation with a lattice constant a=0.226 324 nm (zero pressure condition). Besides, the weak and strong coupling superconductivities of metallic hydrogen (fcc structure) are explored, an electron-phonon coupling constant λ=1.806 is obtained, and critical temperature Tc is 179.126 K.(using e=AKh-D=m=1 unit)

Key words: metallic hydrogen, ground state, superconductivity

CLC Number:

O414.12

LI Jun-jie, ZHENG Wei-tao, JIN Zeng-sun , ZHU Zai-wan, WANG Cui. Ground State and Superconductivity of Metallic Hydrogen[J].J4, 2002, 40(01): 84-87.

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Ground State and Superconductivity of Metallic Hydrogen

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