Compressibility of natural manganite at high pressure: Influence of Jahn-Teller effect and hydrogen bond

	Compressibility of natural manganite at high pressure: Influence of Jahn-Teller effect and hydrogen bond
	Xu, JG ; Li XD(李晓东); Xie, HS ; Li, XD; Zhou, WG ; Fan, DW ; Kuang, YQ ; Zhang, B3 ; Zhao, DY
刊名	HIGH TEMPERATURES-HIGH PRESSURES
	2017
卷号	46 期号:1 页码:61-79
关键词	High-pressure Natural manganite X-ray diffraction Equation of state Jahn-Teller effect
ISSN号	0018-1544
文献子类	Article
英文摘要	The pressure-volume relations of a natural manganite [gamma-MnOOH] were measured at ambient temperature and high pressures up to 12.7 GPa using a diamond anvil cell ( DAC) equipment and synchrotron radiation X-ray diffraction technique. No phase transition has been observed within the whole pressure range in this study. Analysis of pressure-volume data on P21/c setting structure to a third-order Birch-Murnaghan equation of state yielded: zero-pressure volume V0 = 135.46( 4) angstrom(3), isothermal bulk modulus K-0 = 86( 2) GPa and its pressure derivative K'(0) = 6.8( 6). The axial compression behavior shows that the manganite is a compression anisotropic mineral with K-ao = 93( 4) GPa, K-b0 = 62( 5) GPa, K-c0 = 82( 4) GPa, which reveals that the a-axis is the least compressible, then b-axis is the most compressible, and c-axis is between them. Comparing the compressibility of manganite based on P2(1)/c with B2(1)/d setting showed that the different of crystallization orientation was the unique reason for the different axial modulus. Furthermore, we also compared the compressional properties manganite with pyrolusite ( beta-MnO2) and the hydroxides of InOOH-related structure which were isotopological to manganite (B2(1)/d), and inferred that the combinations of Jahn-Teller effect and hydroxyl were the major reasons for the far less bulk modulus of manganite than that of the pyrolusite, and the Jahn-Teller effect and the least electronegativity central coordinated cation-Mn3+ in manganite were the reasons for having the smallest bulk modulus of manganite among the InOOH-related hydroxides.
电子版国际标准刊号	1472-3441
WOS关键词	X-RAY-DIFFRACTION ; EQUATION-OF-STATE ; DELTA-ALOOH ; CRYSTAL-STRUCTURE ; RUTILE-TYPE ; ROOM-TEMPERATURE ; OXIDE HYDROXIDE ; PHASE ; GPA ; REFINEMENT
WOS研究方向	Thermodynamics ; Mechanics ; Materials Science
语种	英语
WOS记录号	WOS:000396463700006
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284240]
专题	高能物理研究所_多学科研究中心
作者单位	1.Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geochem, Key Lab High Temp & High Pressure Study Earths In, Guiyang 550002, Peoples R China
推荐引用方式 GB/T 7714	Xu, JG,Li XD,Xie, HS,et al. Compressibility of natural manganite at high pressure: Influence of Jahn-Teller effect and hydrogen bond[J]. HIGH TEMPERATURES-HIGH PRESSURES,2017,46(1):61-79.
APA	Xu, JG.,李晓东.,Xie, HS.,Li, XD.,Zhou, WG.,...&Zhao, DY.(2017).Compressibility of natural manganite at high pressure: Influence of Jahn-Teller effect and hydrogen bond.HIGH TEMPERATURES-HIGH PRESSURES,46(1),61-79.
MLA	Xu, JG,et al."Compressibility of natural manganite at high pressure: Influence of Jahn-Teller effect and hydrogen bond".HIGH TEMPERATURES-HIGH PRESSURES 46.1(2017):61-79.