Oxygen and disorder effect in the magnetic properties of manganite films

M.SIRENA, N.HABERKORN, M.GRANADA, L.B.STEREN, J.GUIMPEL

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

Elsevier

Lugar: Amsterdam; Año: 2004 vol. 272 p. 1171 - 1173

0304-8853

We have made a systematic study of the magnetic properties of low doped manganite .lms submitted to different oxygenation treatments.We have found that oxygenation dynamics depends critically of the strain .eld in the sample. The T and the Mr increase as the oxygen content is increased.A decrease of the coercive .eld of the LSMO-STO .lms was observed,indicating that annealing treatments increase the oxygen content reducing oxygen vacancies.T and the Mr increase as the oxygen content is increased.A decrease of the coercive .eld of the LSMO-STO .lms was observed,indicating that annealing treatments increase the oxygen content reducing oxygen vacancies.