Magnetic non-uniformity and thermal hysteresis of magnetism in a manganite thin film

التفاصيل البيبلوغرافية
العنوان: Magnetic non-uniformity and thermal hysteresis of magnetism in a manganite thin film
المؤلفون: Singh, Surendra, Fitzsimmons, M. R., Lookman, T., Thompson, J. D., Jeen, H., Biswas, A., Roldan, M. A., Varela, M.
المصدر: Phys. Rev. Lett. 108, 077207 (2012)
سنة النشر: 2011
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Materials Science
الوصف: We measured the chemical and magnetic depth profiles of a single crystalline (La$_{1-x}$Pr$_x$)$_{1-y}$Ca$_y$MnO$_{3-{\delta}}$ (x = 0.52\pm0.05, y = 0.23\pm0.04, {\delta} = 0.14\pm0.10) film grown on a NdGaO3 substrate using x-ray reflectometry, electron microscopy, electron energy-loss spectroscopy and polarized neutron reflectometry. Our data indicate that the film exhibits coexistence of different magnetic phases as a function of depth. The magnetic depth profile is correlated with a variation of chemical composition with depth. The thermal hysteresis of ferromagnetic order in the film suggests a first order ferromagnetic transition at low temperatures.
نوع الوثيقة: Working Paper
DOI: 10.1103/PhysRevLett.108.077207
URL الوصول: http://arxiv.org/abs/1112.3393
رقم الأكسشن: edsarx.1112.3393
قاعدة البيانات: arXiv
الوصف
DOI:10.1103/PhysRevLett.108.077207