Shlyakhtin, OA Oh, YJ Tretyakov, YD 2024-01-21T16:11:59Z 2024-01-21T16:11:59Z 2021-09-03 1999-01 0038-1098 https://pubs.kist.re.kr/handle/201004/142614 Evolution of magnetoresistance at H = 1.5 T during sintering of ceramics is studied for La0.7Ca0.3MnO3 samples obtained using solid state (SS) synthesis and freeze-drying (FD) methods. Significant enhancement of magnetoresistance peak values and lowering of peak temperature for dense SS samples can be related to larger oxygen non-stoichiometry due to complicated oxygen diffusion or influence of La-doped MnOx inclusions, generating new pinning centers. (C) 1999 Published by Elsevier Science Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD GIANT MAGNETORESISTANCE OXYGEN STOICHIOMETRY GRAIN-BOUNDARIES FILMS LA0.67CA0.33MNO3 PARTICLE SIZE Influence of chemical prehistory on the colossal magnetoresistance of La0.7Ca0.3MnO3 ceramics Article 10.1016/S0038-1098(99)00261-6 1 SOLID STATE COMMUNICATIONS, v.111, no.12, pp.711 - 715 SOLID STATE COMMUNICATIONS 111 12 711 715 scie scopus 000082196700010 2-s2.0-0032592848 Physics, Condensed Matter Physics Article GIANT MAGNETORESISTANCE OXYGEN STOICHIOMETRY GRAIN-BOUNDARIES FILMS LA0.67CA0.33MNO3 PARTICLE SIZE magnetically ordered materials chemical synthesis scanning and transmission electron microscopy flux pinning and creep