Elastic, magnetic and electronic properties of iridium phosphide Ir2P

Authors

Pei Wang, University of Nevada, Las VegasFollow
Yonggang Wang, University of Nevada, Las VegasFollow
Liping Wang, University of Nevada, Las VegasFollow
X Zhang, Yanshan UniversityFollow
X Yu, Institute of Physics, Chinese Academy of SciencesFollow
Jinlong Zhu, University of Nevada, Las VegasFollow
Shanmin Wang, University of Nevada, Las VegasFollow
J Qin, Chulalongkorn University
K Leinenweber, Arizona State University
H Chen, Qinghai UniversityFollow
D He, Sichuan University
Yusheng Zhao, University of Nevada, Las VegasFollow

Document Type

Article

Publication Date

1-1-2016

Publication Title

Scientific Reports

Volume

6

Abstract

Cubic (space group: Fmm) iridium phosphide, Ir 2 P, has been synthesized at high pressure and high temperature. Angle-dispersive synchrotron X-ray diffraction measurements on Ir 2 P powder using a diamond-anvil cell at room temperature and high pressures (up to 40.6 GPa) yielded a bulk modulus of B 0 = 306(6) GPa and its pressure derivative B 0 ′ = 6.4(5). Such a high bulk modulus attributed to the short and strongly covalent Ir-P bonds as revealed by first - principles calculations and three-dimensionally distributed [IrP 4 ] tetrahedron network. Indentation testing on a well-sintered polycrystalline sample yielded the hardness of 11.8(4) GPa. Relatively low shear modulus of ∼64 GPa from theoretical calculations suggests a complicated overall bonding in Ir 2 P with metallic, ionic, and covalent characteristics. In addition, a spin glass behavior is indicated by magnetic susceptibility measurements.

Language

English

Repository Citation

Wang, P., Wang, Y., Wang, L., Zhang, X., Yu, X., Zhu, J., Wang, S., Qin, J., Leinenweber, K., Chen, H., He, D., Zhao, Y. (2016). Elastic, magnetic and electronic properties of iridium phosphide Ir2P. Scientific Reports, 6
http://dx.doi.org/10.1038/srep21787