Transport propeties of polycrystalline La2/3Ca1/3Mn1−xCuxO3prepared by Sol-Gel
✍ Scribed by Yang Ying-ping; Yuan Song-liu; Xia Zheng-cai; Zhang Guo-hong; Zhang Li-jiang
- Publisher
- Wuhan University of Technology
- Year
- 2002
- Tongue
- English
- Weight
- 422 KB
- Volume
- 17
- Category
- Article
- ISSN
- 1000-2413
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It is reported here that colossal constant magnetoresistance (CCMR) over the whole temperature range below the insulatormetal transition can be realized at low magnetic fields through doping 4% Cu in the sol-gel prepared La 2/3 Ca 1/3 MnO 3 sample sintered at 950 8C. The magnetoresistance defined as
Pb(Znl/3Nb2/a)O3 thick films with the perovskite structure were prepared by the sol-gel method. Niobium ethoxide Nb(OC2Hs)4, lead acetate Pb(CH3COO)2, and Zinc 2ethylhexanoate Zn(O2CsH15)2 were reacted in 2-methoxyethanol to form the precursor. Titanium isopropoxide, Ti(O.i-C3HT)4 and barium isoprop