Theoretical model for the high-pressure melting process of MgO with the B1 structure
MgO is an abundant mineral in the rocky mantle of terrestrial planets, but its melting behaviors remain enigmatic. Here we introduce a simple theoretical model to investigate the B1-liquid transition of MgO up to 370 GPa. Vibrational free energies of B1-MgO are fully computed by the moment recurrenc...
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Vacuum
2021
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Online Access: | https://www.sciencedirect.com/science/article/abs/pii/S0042207X2100186X?via%3Dihub https://dlib.phenikaa-uni.edu.vn/handle/PNK/2828 https://doi.org/10.1016/j.vacuum.2021.110231 |
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oai:localhost:PNK-28282022-08-17T05:54:37Z Theoretical model for the high-pressure melting process of MgO with the B1 structure Tran Dinh Cuong Anh D.Phan Melting behavior Bulk modulus High pressure MgO is an abundant mineral in the rocky mantle of terrestrial planets, but its melting behaviors remain enigmatic. Here we introduce a simple theoretical model to investigate the B1-liquid transition of MgO up to 370 GPa. Vibrational free energies of B1-MgO are fully computed by the moment recurrence technique in quantum statistical physics. On that basis, we associate the melting temperature with the isothermal bulk modulus via the work-heat equivalence principle. This strategy allows us to quantitatively explain recent experimental data. Our numerical analyses would yield insights into planetary dynamics and evolution. 2021-09-13T04:24:48Z 2021-09-13T04:24:48Z 2021 Bài trích https://www.sciencedirect.com/science/article/abs/pii/S0042207X2100186X?via%3Dihub https://dlib.phenikaa-uni.edu.vn/handle/PNK/2828 https://doi.org/10.1016/j.vacuum.2021.110231 eng Vacuum |
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Melting behavior Bulk modulus High pressure |
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Melting behavior Bulk modulus High pressure Tran Dinh Cuong Anh D.Phan Theoretical model for the high-pressure melting process of MgO with the B1 structure |
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MgO is an abundant mineral in the rocky mantle of terrestrial planets, but its melting behaviors remain enigmatic. Here we introduce a simple theoretical model to investigate the B1-liquid transition of MgO up to 370 GPa. Vibrational free energies of B1-MgO are fully computed by the moment recurrence technique in quantum statistical physics. On that basis, we associate the melting temperature with the isothermal bulk modulus via the work-heat equivalence principle. This strategy allows us to quantitatively explain recent experimental data. Our numerical analyses would yield insights into planetary dynamics and evolution. |
format |
Bài trích |
author |
Tran Dinh Cuong Anh D.Phan |
author_facet |
Tran Dinh Cuong Anh D.Phan |
author_sort |
Tran Dinh Cuong |
title |
Theoretical model for the high-pressure melting process of MgO with the B1 structure |
title_short |
Theoretical model for the high-pressure melting process of MgO with the B1 structure |
title_full |
Theoretical model for the high-pressure melting process of MgO with the B1 structure |
title_fullStr |
Theoretical model for the high-pressure melting process of MgO with the B1 structure |
title_full_unstemmed |
Theoretical model for the high-pressure melting process of MgO with the B1 structure |
title_sort |
theoretical model for the high-pressure melting process of mgo with the b1 structure |
publisher |
Vacuum |
publishDate |
2021 |
url |
https://www.sciencedirect.com/science/article/abs/pii/S0042207X2100186X?via%3Dihub https://dlib.phenikaa-uni.edu.vn/handle/PNK/2828 https://doi.org/10.1016/j.vacuum.2021.110231 |
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1751856264413970432 |
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8.891695 |