caa a22 4500 445382198 CHVBK 20180317143020.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10948-010-0938-y doi (NATIONALLICENCE)springer-10.1007/s10948-010-0938-y Mössbauer and Magneto Caloric Effect forLa0.7Ca0.3Mn0.99 57Fe0.01O3 [Elektronische Daten] [Il Park, Sam Kim, Chul Kim] The crystallographic and magneto caloric effects of La0.7Ca0.3Mn0.99 57Fe0.01O3 powders were studied by using X-ray diffraction, vibrating sample magnetometer, and Mössbauer spectroscopy. To investigate the effect of sintering conditions on LCMO, the samples were sintered in air and evacuated sealed quartz tube. The calculated magnetic entropy change in the magnetic fields of 1.5T for the samples which sintered in air and evacuated sealed quartz tube are 1.6J/kg K and 3.2J/kg K, respectively. The temperatures of the maximum slope in dM/dT for the samples which sintered in air and evacuated sealed quartz tube are 242K and 262K, respectively. For the explanation of the Mössbauer line broadening, we applied the presence the fluctuating magnetic field, which jumps between the values of hyperfine field, +H and −H, along the z-axis with a frequencyf. We calculated anisotropy energy from Mössbauer relaxation analysis. Springer Science+Business Media, LLC, 2010 Magneto caloric effects nationallicence Mössbauer spectroscopy nationallicence LCMO nationallicence Anisotropy energy nationallicence Park Il Department of Physics, Kookmin University, 136-702, Seoul, Korea aut Kim Sam Department of Physics, Kookmin University, 136-702, Seoul, Korea aut Kim Chul Department of Physics, Kookmin University, 136-702, Seoul, Korea aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 689-692 1557-1939 24:1-2<689 2011 24 10948 https://doi.org/10.1007/s10948-010-0938-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-0938-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Park Il Department of Physics, Kookmin University, 136-702, Seoul, Korea aut NATIONALLICENCE 700 1- Kim Sam Department of Physics, Kookmin University, 136-702, Seoul, Korea aut NATIONALLICENCE 700 1- Kim Chul Department of Physics, Kookmin University, 136-702, Seoul, Korea aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 689-692 1557-1939 24:1-2<689 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer