LaB6 Work Function and Structural Stability under High Pressure

The work functions of the (110) and (10(3) surfaces of LaB6 are determined from ambient pressure to 39.1 GPa. The work function of the (110) surface slowly decreases but that of the (100) surface remains at a relatively constant value. To determine the reason for this difference, the electron densit...

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Veröffentlicht in:中国物理快报:英文版 2017-06, Vol.34 (7), p.185-189
1. Verfasser: 李鹏善 崔巍然 李蕊 孙华蕾 李延春 杨栋亮 宫宇 李晖 李晓东
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Sprache:eng
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Zusammenfassung:The work functions of the (110) and (10(3) surfaces of LaB6 are determined from ambient pressure to 39.1 GPa. The work function of the (110) surface slowly decreases but that of the (100) surface remains at a relatively constant value. To determine the reason for this difference, the electron density distribution (EDD) is determined from high-pressure single-crystal x-ray diffraction data by the maximum entropy method. The EDD results show that the chemical bond properties in LaB6 play a key role also investigated by single-crystal x-ray diffraction. In observed from ambient pressure to 39.1 GPa. The structural stability of LaB6 under high pressure is this study, no structural or electronic phase transition is
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/34/7/076201