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强关联锰氧化物Nd_(0.5)Ca_(0.5)Mn_(0.85)Al_(0.15)O_3低温下磁性质的研究 被引量：2

Magnetic Properties of Strong Associations Manganese Oxide Nd_(0.5)Ca_(0.5)Mn_(0.85)Al_(0.15)O_3
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摘要 选用高温固相反应法制备多晶样品Nd0.5Ca0.5Mn0.85Al0.15O3.通过XRD表明样品为单相正交的钙钛矿结构,空间群Pnma.通过物理性质测量系统对样品M-T,M-H性质进行测量,表明低温下样品呈相分离态,磁有序的冻结温度为32 K,铁磁团簇的自旋阻塞温度为4 K.2 K温度下有磁滞现象. Polyerystalline sample Nd0.5 Ca0.5 Mn0.85 Al0.15 O3 was synthesized by high temperatrue solid - state reaction. XRD results show that the sample is single -phase orthorhombic structure, Pmna space group. The M- T,M- H were tested through physical property measurement system. Samples show that low temperature separation condition. The freezing temperature of magnetic order is 32 K. Spin ferromagnetic clusters of blocking the temperature is 4 K. There is hysteresis phenomenon under 2 K temoerature.
作者 李玉 郭子心 戚大伟
机构地区 东北林业大学
出处 《哈尔滨师范大学自然科学学报》 CAS 2015年第5期76-78,共3页 Natural Science Journal of Harbin Normal University
基金 黑龙江省博士后特别资助(批准号:LBH-TZ0413) 中国博士后科学基金(批准号:2012M510904) 黑龙江省博士后启动经费(批准号:LBH-Q11188) 国家自然科学基金(批准号:31170518)
关键词 高温固相反应法 相分离 磁滞 High temperatrue solid - state reaction Separation condition Hysteresis
分类号 S776.04 [农业科学—森林工程] O482.54 [一般工业技术—材料科学与工程]
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参考文献13

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二级参考文献29

共引文献36

同被引文献22

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哈尔滨师范大学自然科学学报
2015年 第5期

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