TY - JOUR
T1 - Structure and transport properties of Cr doped La214 system
AU - Xu, Gaojie
AU - Mao, Zhiqiang
AU - Jin, Hao
AU - Jia, Yunbo
AU - Yan, Hongjie
AU - Zhang, Jianwu
AU - Zhang, Yuheng
N1 - Funding Information:
This work was supported by the National Foundation for Outstanding Young Scientists, the National Center for Research and Development on Superconductivity, China Postdoctoral Science Foundation.
PY - 1999/3/20
Y1 - 1999/3/20
N2 - The structure and normal state transport properties of La1.85-xSr0.15-xCu1-xCrxO4 (0≤x≤0.30) have been investigated by means of XRD, resistivity and thermoelectric power. The analysis of experimental results indicates that Cr doping introduces disorder into the system, which causes an obvious metal-insulator (MI) transition in the samples with high doping level. This MI transition can be well interpreted in the context of the Anderson theory of disorder-induced localization. In addition, Cr doping leads to the broad peaks in the S-T curves shifting up to high temperature, which is in contrast to that of the non-magnetic element, Al, doped system. This discrepancy is analyzed in terms of the changes of d-p hybridization and spin correlation.
AB - The structure and normal state transport properties of La1.85-xSr0.15-xCu1-xCrxO4 (0≤x≤0.30) have been investigated by means of XRD, resistivity and thermoelectric power. The analysis of experimental results indicates that Cr doping introduces disorder into the system, which causes an obvious metal-insulator (MI) transition in the samples with high doping level. This MI transition can be well interpreted in the context of the Anderson theory of disorder-induced localization. In addition, Cr doping leads to the broad peaks in the S-T curves shifting up to high temperature, which is in contrast to that of the non-magnetic element, Al, doped system. This discrepancy is analyzed in terms of the changes of d-p hybridization and spin correlation.
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U2 - 10.1016/S0921-4534(99)00176-8
DO - 10.1016/S0921-4534(99)00176-8
M3 - Article
AN - SCOPUS:0032654570
VL - 314
SP - 263
EP - 268
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 3
ER -