Li[Li_((1/3-x/3))Mn_((2/3-2x/3))Co_x]O_2(x=0.1)的团簇自旋玻璃态行为

Cluster spin glass behavior of Li[Li_((1/3-x/3))Mn_((2/3-2x/3))Co_x]O_2(x=0.1)

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摘要采用柠檬酸盐法制备了六方层状结构的Li[Li(1/3-x/3)Mn(2/3-2x/3)Cox]O2(x=0.1)材料.体系在高温区呈现顺磁态,通过拟合Curie-Weiss定律得到Curie和Weiss常数分别为1.70(2)m3 K/mol和-22(3)K.该材料的磁化率曲线在低温区表现出不可逆转变行为,并且这种不可逆转变行为也受到外加磁场的调制.结合Almeida-Thouless(AT)线分析,可以确定Li[Li0.3Mn0.6Co0.1]O2呈现团簇自旋玻璃态行为. Li[Li（1/3-x/3）Mn（2/3-2x/3）Cox]O2（x=0.1） was prepared by citrate precursor method and show paramagnetism during high-temperature region.By fitting Curie-Weiss law,the Curie and Weiss constant are obtained to be 1.70（2）m3 K/mol and-22（3） K,respectively.The susceptibility shows irreversibility behavior at low temperature and this irreversibility behavior is suppressed by applied fields.Together with Almeida-Thouless（AT）,Cluster spin glass behavior is suggested to be the ground state of Li[Li0.3Mn0.6Co0.1]O2.

作者高春歌王丽萍陈红王春忠

机构地区吉林大学物理学院白城师范学院物理系北华大学物理学院

出处《东北师大学报（自然科学版）》 CAS CSCD 北大核心 2011年第3期69-72,共4页 Journal of Northeast Normal University(Natural Science Edition)

基金吉林省科技发展计划项目(20100557)

关键词自旋玻璃态失措因子磁性 spin glass frustration parameter magnetism

分类号 O482 [理学—固体物理]

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参考文献18

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东北师大学报（自然科学版）

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Li[Li_((1/3-x/3))Mn_((2/3-2x/3))Co_x]O_2(x=0.1)的团簇自旋玻璃态行为

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