新型富硼硒化物B6Se和B12Se的状态方程

IF 1.2 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

High Pressure Research Pub Date : 2021-06-08 DOI:10.1080/08957959.2021.1961765

K. Cherednichenko, Y. Le Godec, V. Solozhenko

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引用次数: 2

摘要

近年来，在高压高温条件下合成了两种新型的富硼硒化物，正交B6Se和菱形B12Se。利用同步加速器粉末X射线衍射在金刚石砧座室中研究了这些相的室温压缩率。通过三阶Birch–Murnaghan状态方程对实验p–V数据进行拟合，得出体积模量为155（2） B12Se和144的GPa（3） B6Se的GPa。在所研究的压力范围内，即高达35，未观察到压力引起的相变 GPa。

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Equations of state of new boron-rich selenides B6Se and B12Se

ABSTRACT Two novels boron-rich selenides, orthorhombic B6Se and rhombohedral B12Se, have been recently synthesized at high pressures and high temperatures. Room-temperature compressibilities of these phases were studied in a diamond anvil cell using synchrotron powder X-ray diffraction. A fit of experimental p–V data by the third-order Birch–Murnaghan equation of state yielded the bulk moduli of 155(2) GPa for B12Se and 144(3) GPa for B6Se. No pressure-induced phase transitions have been observed in the studied pressure range, that is, up to 35 GPa.

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来源期刊

High Pressure Research 物理-物理：综合

CiteScore

3.80

自引率

5.00%

发文量

审稿时长

2 months

期刊介绍： High Pressure Research is the leading journal for research in high pressure science and technology. The journal publishes original full-length papers and short research reports of new developments, as well as timely review articles. It provides an important forum for the presentation of experimental and theoretical advances in high pressure science in subjects such as: condensed matter physics and chemistry geophysics and planetary physics synthesis of new materials chemical kinetics under high pressure industrial applications shockwaves in condensed matter instrumentation and techniques the application of pressure to food / biomaterials Theoretical papers of exceptionally high quality are also accepted.