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Report No.

Phase diagram of the Eu-H system at high temperatures and high hydrogen pressures

Saito, Hiroyuki; Machida, Akihiko; Matsuoka, Takehiro*; Aoki, Katsutoshi*

The phase boundary between the hydrogen rich phases EuH$$_{it{x}}$$-III and EuH$$_{it{x}}$$-IV is determined by X-ray diffraction and infrared absorption measurements. Phase IV is characterized as a high temperature phase of phase III over an investigated pressure range of 4 - 10 GPa. The transition temperature exhibits a maximum value of 550 K at 7 GPa, where the slope of the boundary switches from positive to negative.



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Category:Physics, Condensed Matter



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