中国物理B ›› 2017, Vol. 26 ›› Issue (11): 116202-116202.doi: 10.1088/1674-1056/26/11/116202
• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇 下一篇
Yin-Juan Liu(刘银娟), Jia-Wei Zhang(张佳威), Duan-Wei He(贺端威), Chao Xu(许超), Qi-Wei Hu(胡启威), Lei Qi(戚磊), A-Kun Liang(梁阿坤)
Yin-Juan Liu(刘银娟)1,2, Jia-Wei Zhang(张佳威)1,2, Duan-Wei He(贺端威)1,2, Chao Xu(许超)1,2, Qi-Wei Hu(胡启威)1,2, Lei Qi(戚磊)1,2, A-Kun Liang(梁阿坤)1,2
摘要: In the present work, a third form, the so-called HP-BiNbO4 synthesized at high pressure and high temperature is investigated with the in-situ angle-dispersive x-ray diffraction (ADXRD) measurements under high pressure. We explore the compression behavior and phase stability of HP-BiNbO4. The structure of HP-BiNbO4 is first determined. The x-ray diffraction data reveal that the structure HP-BiNbO4 is stable under pressures up to 24.1 GPa. The ADXRD data yield a bulk modulus Ko=185 (7) GPa with a pressure derivative Ko'=2.9 (0.8). Furthermore, the data are compared with those of other ABO4 compounds. The results show that the bulk modulus of HP-BiNbO4 (about 185 GPa) is slightly higher than that of tetragonal BiVO4 and significantly greater than those of the tungstates and molybdates.
中图分类号: (High-pressure effects in solids and liquids)