High-pressure spectroscopic investigation of multiferroic Ni3TeO6

Source Publication (e.g., journal title)

Physical Review B

Authors

Kenneth Robert O'NealFollow
Amanda Clune, University of Tennessee, Knoxville
Nathan C. Harms, University of Tennessee, Knoxville
Sang-Wook Cheong, Pohang University of Science and Technology, Korea
Junjie Yang, Central Michigan University
Zhenxian Liu, Carnegie Institution of Washington, Washington D.C.
Turan Birol, Chemical Engineering and Materials Science, University of Minnesota, Minneapolis
Janice L. Musfeldt, University of Tennessee, Knoxville

Document Type

Article

Publication Date

11-1-2018

DOI

10.1103/PhysRevB.98.184101

Abstract

We combined diamond anvil cell techniques, infrared and Raman spectroscopies, and lattice dynamics calculations to explore the high pressure properties of multiferroic Ni3TeO6. Using a frequency trend analysis, we trace a subtle decrease in compressibility near 4 GPa to a minimum in the O-Ni2-O bond angle. This unique behavior emanates from the proximity of the Ni2 center in the Ni3-Ni2-Ni1-Te chain to a flexible pocket that is intrinsic to the crystal structure. At the same time, predicted trends in the superexchange pathways are consistent with greater antiferromagnetic character under compression, in line with both phase stability calculations and direct susceptibility measurements. These findings highlight opportunities for local structure control of corundumlike materials.

Recommended Citation

O'Neal, Kenneth Robert; Clune, Amanda; Harms, Nathan C.; Cheong, Sang-Wook; Yang, Junjie; Liu, Zhenxian; Birol, Turan; and Musfeldt, Janice L., "High-pressure spectroscopic investigation of multiferroic Ni3TeO6" (2018). Chemistry Publications and Other Works.
https://trace.tennessee.edu/utk_chempubs/52

Submission Type

Post-print