eprintid: 3795 rev_number: 10 eprint_status: archive userid: 436 dir: disk0/00/00/37/95 datestamp: 2019-12-12 09:40:23 lastmod: 2019-12-12 09:41:05 status_changed: 2019-12-12 09:40:23 type: article metadata_visibility: show creators_name: Hoang, Nam Nhat creators_id: nhathn@vnu.edu.vn title: Compressibility of a periodic lattice of atomic hydrogen ispublished: pub subjects: Scopus divisions: fac_physic abstract: We report on the compressibility of a pseudo-cubic P1 lattice of atomic hydrogen from 0 up to 3000 GPa by modeling the lattice under hydraulic stress using the Density Functional Theory (DFT). The lattice compression does not fit well to the known Murnaghan's equation and shows sharp increase near 2500 GPa. On the other hand, the bulk modulus shows anomalous behavior in the vicinity of 280 GPa. We also obtain the values of ground state energy and enthalpy for pressure up to 2500 GPa, above this pressure the convergence fails as the H-H distance approaches the bonding length in H2. date: 2019-06-01 date_type: published publisher: IR JET official_url: https://irjet.net/archives/V6/i6/IRJET-V6I6614.pdf full_text_status: public publication: IR JET volume: 6 number: 6 pagerange: 3023-3024 refereed: TRUE issn: 2395-0072 citation: Hoang, Nam Nhat (2019) Compressibility of a periodic lattice of atomic hydrogen. IR JET, 6 (6). pp. 3023-3024. ISSN 2395-0072 document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/3795/2/IRJET-V6I6614-ofprint.pdf