The low temperature magnetic phase diagram of EuxSr1−xTiO3
1 Physik-Institut der Universität
2 Max-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, 70569 Stuttgart, Germany
Received in final form: 31 July 2013
Published online: 1 October 2013
Specific heat and magnetization measurements demonstrate that the antiferromagnetic (AFM) phase transition at TN = 5.7 K of EuTiO3 is rapidly suppressed with Sr doping in EuxSr1−xTiO3. Close to x = 0.25, TN = 0 K and AFM order vanishes. Above this critical concentration a finite transition temperature to an AFM phase is observed. The exchange couplings are derived as a function of x and the corresponding low temperature phase diagram is presented.
Key words: Solid State and Materials
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag, 2013