@article{oai:iwate-u.repo.nii.ac.jp:00010339,
 author = {Marysko, M and Jirak, Z and Knizek, K and Novak, P and Hejtmanek, J and Naito, T and Sasaki, H and Fujishiro, H},
 issue = {7},
 journal = {JOURNAL OF APPLIED PHYSICS},
 month = {Jan},
 note = {The first-order character of the transition from the low-to-intermediate spin state in the system (Pr1−yYy)0.7Ca0.3CoO3 (y = 0.075–0.15) has been verified by magnetization measurements. For y = 0.075, the transition manifests itself in χ(T) steps at temperatures depending on external fields. In this case, isothermal measurements show a field-driven transition exhibiting a field hysteresis. The entropy contribution is evaluated and discussed. Qualitative analysis based on a two-level model suggests that the observed influence of the magnetic field can be explained only by assuming the presence of exchange interactions.},
 pages = {07E127-1--07E127-3},
 title = {Thermally and field-driven spin-state transitions in (Pr1-yYy)0.7Ca0.3CoO3},
 volume = {109},
 year = {2011}
}