Journal of Materials Science

, Volume 42, Issue 8, pp 2582–2585 | Cite as

High pressure Raman spectroscopic study of structural phase transition in samarium oxide

  • Teruhisa Hongo
  • Ken-ichi Kondo
  • Kazutaka G. NakamuraEmail author
  • Toshiyuki Atou


High pressure Raman spectroscopic study of Sm2O3 poly crystal was performed up to 21.0 GPa and room temperature using a diamond anvil cell. Pressure induced phase transition was observed at 2.6 GPa in the pressure increasing process. This phase transition corresponds to the monoclinic B type phase → the hexagonal A type transformation. The A type phase was stable up to 21.0 GPa. In the pressure release process, the A type phase was stable above 1.8 GPa, and was completely reverted to the B type phase at 1.1 GPa. The phase transition was confirmed to be reversible with a hysteresis of approximately 1.0 GPa.


Samarium Gd2O3 Diamond Anvil Cell Phase Transition Pressure Raman Spectroscopic Study 
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The authors thank S. Oguchi for his assistance in experiments.


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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  • Teruhisa Hongo
    • 1
  • Ken-ichi Kondo
    • 1
  • Kazutaka G. Nakamura
    • 1
    Email author
  • Toshiyuki Atou
    • 2
  1. 1.Materials and Structures LaboratoryTokyo Institute of Technology R3-10YokohamaJapan
  2. 2.Institute for Materials ResearchTohoku UniversitySendaiJapan

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