Magnetite: Raman study of the high-pressure and low-temperature effects - art. no. 10A922

  title={Magnetite: Raman study of the high-pressure and low-temperature effects - art. no. 10A922},
  author={L. Gasparov and D. Arenas and K.-Y. Choi and G. Guntherodt and H. Berger and L. Forr{\'o} and G. Margaritondo and V. Struzhkin and R. Hemley},
  journal={Journal of Applied Physics},
We report the results of a low-temperature (300 K-15 K) high-pressure (up to 22 GPa) Raman study of the Verwey transition in magnetite (Fe3O4). We use additional Raman modes observed below the Verwey transition to determine how the transition temperature changes with the quasihydrostatic pressure. Increase of the pressure results in the linear decrease of the Verwey transition temperature, with no discontinuity. The corresponding pressure coefficient dT(v)/dP is found to be -5.16 +/- 1.19 K/GPa… Expand

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