Pressure-Induced Collapse of Magnetic Order in Jarosite. Academic Article uri icon


  • We report a pressure-induced phase transition in the frustrated kagom material jarosite at 45GPa, which leads to the disappearance of magnetic order. Using a suite of experimental techniques, we characterize the structural, electronic, and magnetic changes in jarosite through this phase transition. Synchrotron powder x-ray diffraction and Fourier transform infrared spectroscopy experiments, analyzed in aggregate with the results from density functional theory calculations, indicate that the material changes from a R3[over ]m structure to a structure with a R3[over ]c space group. The resulting phase features a rare twisted kagom lattice in which the integrity of the equilateral Fe^{3+} triangles persists. Based on symmetry arguments we hypothesize that the resulting structural changes alter the magnetic interactions to favor a possible quantum paramagnetic phase at high pressure.

published proceedings

  • Phys Rev Lett

altmetric score

  • 0.25

author list (cited authors)

  • Klein, R. A., Walsh, J., Clarke, S. M., Liu, Z., Alp, E. E., Bi, W., ... Freedman, D. E.

citation count

  • 2

complete list of authors

  • Klein, Ryan A||Walsh, James PS||Clarke, Samantha M||Liu, Zhenxian||Alp, E Ercan||Bi, Wenli||Meng, Yue||Altman, Alison B||Chow, Paul||Xiao, Yuming||Norman, MR||Rondinelli, James M||Jacobsen, Steven D||Puggioni, Danilo||Freedman, Danna E

publication date

  • August 2020