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. 2015 May 13;5:10026. doi: 10.1038/srep10026

Figure 6. First-principles energies of FeRh under strain.

Figure 6

(a,b) Internal energy variations with strain and γ for (a) AF-FeRh and (b) FM-FeRh. In each of (a) and (b), energy is given relative to the unstrained ground state energy of the magnetic phase under consideration. In both (a) and (b), strain is given relative to the unstrained equilibrium FM-FeRh cell parameter a0,FeRhFM, i.e. strain = (aFeRh – a0,FeRhFM)/a0,FeRhFM. (c) Internal energy differences ΔE between FM-FeRh and AF-FeRh for the same strain and γ. Red dots represent the estimated experimental percentagewise strain states of FeRh on BTO c-domains and a-domains at the three temperatures indicated on the right.