Structural evolution behavior of manganese monophosphide under high pressure: experimental and theoretical study

doi:10.1088/1361-648X/aa6554

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	Structural evolution behavior of manganese monophosphide under high pressure: experimental and theoretical study
	Yu, ZH; Wu, W; Lu, PC; Zhao, JG; Cheng, JG; Hu, QY; Yuan, Y; Li, X; Pei, CY; Chen, FJ; Yan, ZP; Yan, S; Yang, K; Sun, J; Luo, JL; Wang, L
	2017
发表期刊	JOURNAL OF PHYSICS-CONDENSED MATTER
ISSN	0953-8984
卷号	29 期号:25 页码:-
文章类型	期刊论文
摘要	The influence of external pressure on the structural properties of manganese monophosphides (MnP) at room temperature has been studied using in situ angle dispersive synchrotron x-ray powder diffraction (AD-XRD) with a diamond anvil cell. The crystal structure of MnP is stable between 0 to 15 GPa. However, the compressibility of b-axis is much larger than those of a- and c-axes. From this result we suggested that the occurrence of superconductivity in MnP was induced by suppression of the long-range antiferromagnetically ordered state rather than a structural phase transition. Furthermore, the present experimental results show that the Pnma phase of MnP undergoes a pressure-induced structural phase transition at similar to 15.0 GPa. This finding lighted up-to-date understanding of the common prototype B31 structure (Strukturbericht Designation: B31) in transition metal monophosphides. No additional structural phase transition was observed up to 35.1 GPa (Run 1) and 40.2 GPa (Run 2) from the present AD-XRD results. With an extensive crystal structure searching and ab initio calculations, we predict that MnP underwent two pressure-induced structural phase transitions of Pnma -> P2(1)3 and P2(1)3 -> Pm-3m (CsCl-type) at 55.0 and 92.0 GPa, respectively. The structural stability and the electronic structures of manganese monophosphides under high pressure are also briefly discussed.
关键词	Manganese-based Superconductor High-pressure Effects Phase Transitions
DOI	10.1088/1361-648X/aa6554
收录类别	SCI
语种	英语
WOS记录号	WOS:000402433000002
引用统计
文献类型	期刊论文
条目标识符	http://ir.sinap.ac.cn/handle/331007/27452
专题	中科院上海应用物理研究所2011-2018年
推荐引用方式 GB/T 7714	Yu, ZH,Wu, W,Lu, PC,et al. Structural evolution behavior of manganese monophosphide under high pressure: experimental and theoretical study[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2017,29(25):-.
APA	Yu, ZH.,Wu, W.,Lu, PC.,Zhao, JG.,Cheng, JG.,...&Wang, L.(2017).Structural evolution behavior of manganese monophosphide under high pressure: experimental and theoretical study.JOURNAL OF PHYSICS-CONDENSED MATTER,29(25),-.
MLA	Yu, ZH,et al."Structural evolution behavior of manganese monophosphide under high pressure: experimental and theoretical study".JOURNAL OF PHYSICS-CONDENSED MATTER 29.25(2017):-.

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