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High-pressure structural phase transition in MnWO4

DOI: 10.1103/PhysRevB.91.104109 DOI Help

Authors: Javier Ruiz Fuertes (Goethe-Universit) , A. Friedrich (Goethe-Universit) , Oscar Gomis (Universidad Politécnica de Valencia) , Daniel Errandonea (Universidad de Valencia) , W. Morgenroth (Goethe-Universit) , Juan Angel Sans Tresserras (Universitat Politècnica de València, Spain) , David Santamaria Perez (Universitat de Valencia)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Physical Review B , VOL 91 (10)

State: Published (Approved)
Published: March 2015
Diamond Proposal Number(s): 6517

Abstract: The pressure-induced phase transition of the multiferroic manganese tungstate MnWO4 is studied on single crystals using synchrotron x-ray diffraction and Raman spectroscopy. We observe the monoclinic P2/c to triclinic P1 phase transition at 20.1 GPa and get insight on the phase transition mechanism from the appearance of tilted triclinic domains. Selective Raman spectroscopy experiments with single crystals have shown that the onset of the phase transition occurs 5 GPa below the previously reported pressure obtained from experiments performed with powder samples

Subject Areas: Physics


Instruments: I15-Extreme Conditions