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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2000, Vol. 1 Issue (2): 121-124    DOI: 10.1631/jzus.2000.0121
Science & Engineering     
TRANSPORT PROPERTIES ON La0.7Sr0.3MnO3/Al2O3/Fe TUNNEL JUNCTIONS
PAN Feng-ming, JIAO Zheng-kuan
Physics Department, Yuquan Campus of Zhejiang University, Hangzhou 310027, China
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Abstract  Manganese oxide La0.7Sr0.3MnO3 produced on (001) LaAlO3 substrate by means of sol-gel spin-coating method was used as the base electrode of LaSrMnO/Al2O3/Fe tunnel junctions. The I-V characteristic in the high bias region of this system was shown to be similar to that of the conventional tunnel junctions. Anomalous temperature dependence of tunneling resistance was observed to be a positive temperature coefficient of resistance. This phenomenon was attributed to the high voltage applied and was simply elucidated from the density states vs. energy diagram.

Key words： tunnel junctions      manganese oxide      transport properties     
Received: 22 December 1998     
CLC:  O469  
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PAN Feng-ming
JIAO Zheng-kuan
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PAN Feng-ming, JIAO Zheng-kuan. TRANSPORT PROPERTIES ON La0.7Sr0.3MnO3/Al2O3/Fe TUNNEL JUNCTIONS. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2000, 1(2): 121-124.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2000.0121     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2000/V1/I2/121

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