Hoc Quang Nguyen, Nhi Quynh Nguyen, Mai Thi Dao, Vien Cong Tran, Tra Thi Thu Lai, Anh Thi Van Le, An Thi Thuy Nguyen
{"title":"Thermodynamic properties of perovskite MgSiO3 with cubic structure under extreme conditions","authors":"Hoc Quang Nguyen, Nhi Quynh Nguyen, Mai Thi Dao, Vien Cong Tran, Tra Thi Thu Lai, Anh Thi Van Le, An Thi Thuy Nguyen","doi":"10.1140/epjb/s10051-024-00804-2","DOIUrl":null,"url":null,"abstract":"<div><p>The article applies the thermodynamic theory built by statistical moment method (SMM) to determine numerically the temperature and pressure dependences of the thermal expansion coefficient, the heat capacity constant pressure and the Gruneisen parameter of MgSiO<sub>3</sub> perovskite in the temperature range from 0 to 4000 K and in the pressure range from 0 to 135 GPa. Our SMM numerical results for MgSiO<sub>3</sub> perovskite are compared with that for CaSiO<sub>3</sub> perovskite, experimental data and results calculated by other methods. Our SMM numerical results are new and predictive of experimental results. This is the first application of SMM to study the thermodynamic characteristics of cubic MgSiO<sub>3</sub> perovskite under extreme conditions of the Earth’s lower mantle.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":787,"journal":{"name":"The European Physical Journal B","volume":"97 10","pages":""},"PeriodicalIF":1.6000,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The European Physical Journal B","FirstCategoryId":"4","ListUrlMain":"https://link.springer.com/article/10.1140/epjb/s10051-024-00804-2","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, CONDENSED MATTER","Score":null,"Total":0}
引用次数: 0
Abstract
The article applies the thermodynamic theory built by statistical moment method (SMM) to determine numerically the temperature and pressure dependences of the thermal expansion coefficient, the heat capacity constant pressure and the Gruneisen parameter of MgSiO3 perovskite in the temperature range from 0 to 4000 K and in the pressure range from 0 to 135 GPa. Our SMM numerical results for MgSiO3 perovskite are compared with that for CaSiO3 perovskite, experimental data and results calculated by other methods. Our SMM numerical results are new and predictive of experimental results. This is the first application of SMM to study the thermodynamic characteristics of cubic MgSiO3 perovskite under extreme conditions of the Earth’s lower mantle.
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