Comprehensive magnetic-field-temperature (H-T ) phase diagram of solid oxygen including the θ phase is discussed in the context of the ultrahigh-field measurement and the magnetocaloric effect (MCE) measurement. The problems originating from the short duration of the pulse field, non-equilibrium condition and MCEs, are pointed out and dealt with. The obtained phase diagram manifests the entropy relation between the phases as Sθ ∼ Sα < Sβ << Sϒ.
|Publication status||Published - May 29 2017|
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