Melting of atomic materials under high pressures using computer simulations
ABSTRACTEnormous progress has been made in high-pressure research over the last decades in both, experiments and computer simulations, many challenges still remain. This is evidenced by controversial experimental and numerical data even for the simplest atomic systems exhibiting different types of b...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2023-12-01
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| Series: | Advances in Physics: X |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/23746149.2023.2235060 |
| _version_ | 1827789529794215936 |
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| author | Diana Yu Elke Pahl |
| author_facet | Diana Yu Elke Pahl |
| author_sort | Diana Yu |
| collection | DOAJ |
| description | ABSTRACTEnormous progress has been made in high-pressure research over the last decades in both, experiments and computer simulations, many challenges still remain. This is evidenced by controversial experimental and numerical data even for the simplest atomic systems exhibiting different types of bonding. Here we discuss the determination of the solid–liquid co-existence (melting) lines reviewing the computational techniques for studying the high-pressure melting of atomic systems based on molecular dynamic or Monte Carlo algorithms. Some emphasis is put on presenting the parallel-tempering Monte Carlo method that gives direct access to heat capacity curves and entropic information as a function of temperature allowing for an easy detection and interpretation of the melting transition. For molecular dynamics simulations there exist a variety of methods to extract melting information – here we include a more thorough discussion of thermodynamic integration as it is frequently used for high-pressure melting. Applications of these techniques and discussion for different atomic systems are presented including an overview of experimental and numerical results of the weakly, van-der-Waals bond noble gases, of diamond as a representative for covalent bonding and of alkali metals and iron. We conclude by summarizing some outstanding problems and challenges for numerical simulations. |
| first_indexed | 2024-03-11T17:21:07Z |
| format | Article |
| id | doaj.art-faa24e784eaa4bc692bdf55c4c6af2d1 |
| institution | Directory Open Access Journal |
| issn | 2374-6149 |
| language | English |
| last_indexed | 2024-03-11T17:21:07Z |
| publishDate | 2023-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Advances in Physics: X |
| spelling | doaj.art-faa24e784eaa4bc692bdf55c4c6af2d12023-10-19T13:03:27ZengTaylor & Francis GroupAdvances in Physics: X2374-61492023-12-018110.1080/23746149.2023.2235060Melting of atomic materials under high pressures using computer simulationsDiana Yu0Elke Pahl1MacDiarmid Institute for Advanced Materials and Nanotechnology and Department of Physics, University of Auckland, Private Bag, Auckland, New ZealandMacDiarmid Institute for Advanced Materials and Nanotechnology and Department of Physics, University of Auckland, Private Bag, Auckland, New ZealandABSTRACTEnormous progress has been made in high-pressure research over the last decades in both, experiments and computer simulations, many challenges still remain. This is evidenced by controversial experimental and numerical data even for the simplest atomic systems exhibiting different types of bonding. Here we discuss the determination of the solid–liquid co-existence (melting) lines reviewing the computational techniques for studying the high-pressure melting of atomic systems based on molecular dynamic or Monte Carlo algorithms. Some emphasis is put on presenting the parallel-tempering Monte Carlo method that gives direct access to heat capacity curves and entropic information as a function of temperature allowing for an easy detection and interpretation of the melting transition. For molecular dynamics simulations there exist a variety of methods to extract melting information – here we include a more thorough discussion of thermodynamic integration as it is frequently used for high-pressure melting. Applications of these techniques and discussion for different atomic systems are presented including an overview of experimental and numerical results of the weakly, van-der-Waals bond noble gases, of diamond as a representative for covalent bonding and of alkali metals and iron. We conclude by summarizing some outstanding problems and challenges for numerical simulations.https://www.tandfonline.com/doi/10.1080/23746149.2023.2235060High-pressure physicsmeltingphase diagramsparallel-tempering Monte Carlomolecular dynamics simulationsthermodynamic integration |
| spellingShingle | Diana Yu Elke Pahl Melting of atomic materials under high pressures using computer simulations Advances in Physics: X High-pressure physics melting phase diagrams parallel-tempering Monte Carlo molecular dynamics simulations thermodynamic integration |
| title | Melting of atomic materials under high pressures using computer simulations |
| title_full | Melting of atomic materials under high pressures using computer simulations |
| title_fullStr | Melting of atomic materials under high pressures using computer simulations |
| title_full_unstemmed | Melting of atomic materials under high pressures using computer simulations |
| title_short | Melting of atomic materials under high pressures using computer simulations |
| title_sort | melting of atomic materials under high pressures using computer simulations |
| topic | High-pressure physics melting phase diagrams parallel-tempering Monte Carlo molecular dynamics simulations thermodynamic integration |
| url | https://www.tandfonline.com/doi/10.1080/23746149.2023.2235060 |
| work_keys_str_mv | AT dianayu meltingofatomicmaterialsunderhighpressuresusingcomputersimulations AT elkepahl meltingofatomicmaterialsunderhighpressuresusingcomputersimulations |