TY - JOUR
T1 - Magnetic and transport properties of lanthanum perovskites with B-site half doping
AU - Dho, Joonghoe
AU - Hur, N. H.
PY - 2006/4
Y1 - 2006/4
N2 - We have synthesized various half doped lanthanum perovskites LaB0.5 B0.5′ O3 (BB′=MnV, MnCr, MnCo, MnNi, FeCr, FeMn, FeCo, FeNi) by solid state reaction method. The crystal structure was orthorhombic in all samples, but the magnetic and transport properties showed a large variation with the composition. A ferromagnetic feature was quite strong in the Mn-based perovskites but weak or non-existent in the Fe-based ones. The resistivity of Ni-doped ones was much smaller than those of the others. For all half doped perovskits, remarkably, the temperature dependent transport was well explained by variable range hopping model with different localization lengths.
AB - We have synthesized various half doped lanthanum perovskites LaB0.5 B0.5′ O3 (BB′=MnV, MnCr, MnCo, MnNi, FeCr, FeMn, FeCo, FeNi) by solid state reaction method. The crystal structure was orthorhombic in all samples, but the magnetic and transport properties showed a large variation with the composition. A ferromagnetic feature was quite strong in the Mn-based perovskites but weak or non-existent in the Fe-based ones. The resistivity of Ni-doped ones was much smaller than those of the others. For all half doped perovskits, remarkably, the temperature dependent transport was well explained by variable range hopping model with different localization lengths.
KW - A. Magnetically ordered materials
KW - D. Electronic transport
UR - http://www.scopus.com/inward/record.url?scp=33646118741&partnerID=8YFLogxK
U2 - 10.1016/j.ssc.2006.02.008
DO - 10.1016/j.ssc.2006.02.008
M3 - Article
AN - SCOPUS:33646118741
SN - 0038-1098
VL - 138
SP - 152
EP - 156
JO - Solid State Communications
JF - Solid State Communications
IS - 3
ER -