Pressure-induced ferromagnetism in EuTe

The Phase Diagram of the Second-Type Antiferromagnet

“…The structure of our diagrams (especially Fig. 1a and b) confirms qualitatively the phase diagram obtained experimentally for EuTe [6]. However, in order to describe the phase transition temperature vs. lattice constant α (as it was experimentally found in Ref.…”

“…On the other hand, for a given compound, the lattice constant can be changed using the high external pressure. For instance, the recent experiment performed for EuTe showed that at the external pressure above 9 GPa the ferromagnetic phase is established [6] .…”

“…However, in order to describe the phase transition temperature vs. lattice constant α (as it was experimentally found in Ref. [6]), the detailed dependence of J1(α), J2(α), and Α(α) should be known for a given compound. Α continuation of such studies is planned as our future work.…”

Theoretical studies of model thin EuTe films with surface elastic stresses

“…It should be tested experimentally whether the elastic interactions on the surface, leading to the change of J º;¹ 1 , can be really strong enough to force the AF/F phase transitions. Nevertheless, one should note the fact that the analogous AF/F phase transition has been discovered in the bulk EuTe, under high external pressure [6,14]. The theoretical explanation of that experiment has been done under assumption that the exchange integrals are dependent on the inter-atomic Unauthenticated Download Date | 5/12/18 1:46 PM distance [7,13].…”

Calculations of EuTe Magnetic Phase Diagram for External Pressure

“…The increasing interest in studies of EuTe is connected with the measurements under high pressure [11][12][13][14]. The magnetic phase diagram of EuTe has been found in [13] for a different external pressure and lattice constant a corresponding to it.…”