The Raman scattering of trirutile structure MgTa2O6 single crystals grown by the optical floating zone method

Dapeng Xu; Shuohui Gao; Wenqiang Liu; Ying Liu; Qiang Zhou; Liang Li; Tian Cui; Hongming Yuan

doi:10.1039/c8ra06113k

The Raman scattering of trirutile structure MgTa₂O₆ single crystals grown by the optical floating zone method

RSC Adv. 2019 Jan 8;9(2):839-843. doi: 10.1039/c8ra06113k. eCollection 2019 Jan 2.

Authors

Dapeng Xu¹, Shuohui Gao², Wenqiang Liu^{1

3}, Ying Liu¹, Qiang Zhou¹, Liang Li^{1

4}, Tian Cui¹, Hongming Yuan⁵

Affiliations

¹ State Key Laboratory of Superhard Materials, College of Physics, Jilin University Changchun Jilin China [email protected].
² China-Japan Union Hospital of Jilin University Changchun 130000 P. R. China.
³ College of Physics, Harbin Institute of Technology Harbin Heilongjiang China.
⁴ College of Mechanical Engineering, University of Texas at Austin Austin Texas USA.
⁵ State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University Changchun Jilin China.

Abstract

Single crystals of the trirutile structure MgTa₂O₆ were grown via an optical floating zone method in an air atmosphere. The as-grown crystals were pale yellow and transparent and the natural cleavage plane formed during the crystal growth was determined by XRD2 to be along the c-axis direction. The variations in valence were investigated by XPS (X-ray photoelectron spectroscopy). The room-temperature axis-relative polarized Raman spectra of trirutile MgTa₂O₆ crystals were described. The order-disorder effect was detected via temperature-dependent Raman spectroscopy.