| 温度对La_0.8Ca_0.2MnO_3/Si异质结的整流特性的影响 |
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| 引用本文： | 王磊,杨渭,贾兴涛,王世红.温度对La_0.8Ca_0.2MnO_3/Si异质结的整流特性的影响[J].青岛大学学报(自然科学版),2008,21(1):57-60. |
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| 作者姓名： | 王磊 杨渭 贾兴涛 王世红 |
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| 作者单位： | 1. 中国石油大学(华东),物理科学与技术学院,山东,东营,257061
2. 中国石油大学(华东),化学化工学院,山东,东营,257061 |
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| 摘 要： | 采用磁控溅射制备了LCMO／Si异质结，研究了异质结在不同温度以及低磁场下的电学特性。分析表明该p-n结在80-300K温度范围内具有很好的整流特性，并且随着温度升高，内建电势随之降低，整流效果有所提高。结电阻对低磁场敏感，0．3T的磁场下，磁电阻可达到42％。通过改变电压可以对磁电阻进行调节。
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| 关 键 词： | P-N结 镧钙锰氧 硅 磁电阻 |
| 文章编号： | 1006-1037(2008)01-0057-04 |
| 修稿时间： | 2007年9月25日 |
Temperature Effect on Rectifying Characteristics of La0.8Ca0.2MnO3/Si Hetero-Structure |
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| WANG Lei,YANG Wei,JIA Xing-tao,WANG Shi-hong.Temperature Effect on Rectifying Characteristics of La0.8Ca0.2MnO3/Si Hetero-Structure[J].Journal of Qingdao University(Natural Science Edition),2008,21(1):57-60. |
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| Authors: | WANG Lei YANG Wei JIA Xing-tao WANG Shi-hong |
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| Institution: | WANG Lei, YANG Wei, JIA Xing-tao, WANG Shi-hong(China University of Petroleum ( and Technology; 2. college of Huadong), 1. college of physics science chemistry and chemical Engineering) |
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| Abstract: | The La0.8 Ca0.2 MnO3 thin films are prepared by magnetron sputtering and the electrics characteristics are investigate under different temperatures and low magnetic field. These junctions shows good rectifying characteristics from 80-300 K. With the temperature increasing, the build-in voltage decrease and the characteristics of commutation improves. The junction magnetoresistance was to 420% at 0.3 T, which can be adjusted by changing voltage. |
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| Keywords: | p-n j unction LCMO Si magnetoresistance |
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