【摘 要】
：
La0.7Sr0.3MnO3(LSMO) nanorods were synthesized by a method combining sol-gel with molten salts at 950 ℃ for 10 h,which employed KCl+NaCl(mass ratio 4:1) as eut
【机 构】
：
Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education
【基金项目】
：
Basic Research Fund of Harbin Engineering University,China;Research Fund for the Doctoral Program of Higher Education of China for New Teach-ers;国家自然科学基金;Natural Science Foundation of Heilong-jiang Pr
论文部分内容阅读
La0.7Sr0.3MnO3(LSMO) nanorods were synthesized by a method combining sol-gel with molten salts at 950 ℃ for 10 h,which employed KCl+NaCl(mass ratio 4:1) as eutectic molten salts.The morphologies and magnetic properties of the resulting LSMO nanorods were investigated by X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),and vibrating sample magnetometer(VSM) measurements.It was found that the obtained perovskite manganite LSMO was a uniform nanorod with a diameter of about 50 nm and a length of longer than 500 nm.The Curie temperature(Tc) of the LSMO nanorod used here was 262 K,much lower than that of bulky single crystal LSMO(360 K).The low Curie temperature might be a result of the great disorder near the grain boundary,which could be observed clearly from the TEM picture.
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