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| Compressibilities of MnFe2O4 polymorphs | |
| Lijin Ye; Shuangmeng Zhai; Xiang Wu; Chaowen Xu; Ke Yang; Yuji Higo | |
| 2015 | |
| Source Publication | Physics and Chemistry of Minerals
 |
| Volume | 42Issue:7Pages:569-577 |
| Abstract | The high-pressure behavior and stability of synthetic jacobsite MnFe2O4 have been investigated up to 39.55 GPa at room temperature by means of in situ synchrotron X-ray diffraction using diamond anvil cell and multi-anvil high-pressure apparatus. The MnFe2O4 spinel undergoes a phase transition at about 18 GPa to form a denser antiferromagnetic CaMn2O4-type (CMafm) polymorph. The CMafm MnFe2O4 is stable up to 39.55 GPa in this study and remains after decompression. Fitting the pressure-volume data using a third-order Birch-Murnaghan equation of state, the isothermal bulk modulus values and the first pressure derivatives were obtained as K-0 = 169.7 (35) GPa, K-0' = 2.87 (40) for spinel-type MnFe2O4 and K-0 = 149.2 (24) GPa, K-0' = 3.98 (19) for CMafm MnFe2O4, respectively. If K-0' is fixed to 4, K-0 was obtained as 160.6 (11) GPa for spinel-type MnFe2O4 and 148.9 (7) GPa for CMafm MnFe2O4. The effects of cation substitution on the isothermal bulk modulus and pressure for phase transition of Fe3+-bearing spinels were discussed. |
| Subject Area | 地球深部物质与流体作用地球化学 |
| Indexed By | SCI |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | http://ir.gyig.ac.cn/handle/352002/6052 |
| Collection | 地球内部物质高温高压实验室_地球内部物质高温高压实验室_期刊论文 |
| Recommended Citation GB/T 7714 | Lijin Ye,Shuangmeng Zhai,Xiang Wu,et al. Compressibilities of MnFe2O4 polymorphs[J]. Physics and Chemistry of Minerals,2015,42(7):569-577. |
| APA | Lijin Ye,Shuangmeng Zhai,Xiang Wu,Chaowen Xu,Ke Yang,&Yuji Higo.(2015).Compressibilities of MnFe2O4 polymorphs.Physics and Chemistry of Minerals,42(7),569-577. |
| MLA | Lijin Ye,et al."Compressibilities of MnFe2O4 polymorphs".Physics and Chemistry of Minerals 42.7(2015):569-577. |
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