KAJIAN PEROVSKITE LA0,73CA0,27MN1 - XCUXO3 DENGAN 0 < X < 0,19 SEBAGAI KATODA BAHAN BAKAR OKSIDA PADAT
Abstract: We have
performed the synthesis
and characterization of
materials
La0.73Ca0.27Mn1-xCuxO3 for 0
<x< 0.19 using neutron
scattering diffraction (HRPD)
and SQUID.All the
samples are already
in phase with
the crystal structure orthorombic and space group P nma.
Parameters of the Mn-O bond length obtained from the charactyerization HRPD.
From the parameters of Mn-O bond length can be determined the value of
Jahn-Teller distortion. The greater x
will result in an average radius of position B (<rB>) increasing
and the tolerance factor t decreasing. From the characterization of the SQUID
was found that the maximum value of conductivity for Cu-doped samples will be
lower when compare to the sample without doping, except for Cu=0.10. If the
value of the conductivity is getting smaller, the activation energy will be
higher.
Penulis: Y. E. Gunanto, A. Purwanto, B. Kurniawan, S. Poertadji, E.
Steven, J. S. Brooks
Kode Jurnal: jpfisikadd1407923
