| Electron emission from La-doped Pb（Zr,Sn,Ti）O3 antiferroelectrics by pulse electric field and the relevant physical mechanism |
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| 作者姓名： | ZHANG LinLi FENG YuJun XU Zhuo SHENG ZhaoXuan |
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| 作者单位： | [1]Department of Physics, Xi＇an University of Architecture and Technology, Xi＇an 710055, China [2]Electronic Materials Research Laboratory, Xi＇an Jiaotong University, Xi＇an 710049, China |
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| 基金项目： | 10474077, 50632030) and National Basic Research Program of China (Grant No. 2002CB613307) |
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| 摘 要： | We investigate the characteristics of emission current waves of antiferroelectric cathode material lanthanum-doped lead zirconate stannate titanate （PLZST） triggered by pulse field, and analyze the relationship of the emission current waveforms with the extraction voltage. The close correlation between the triggering pulse polarity and emission current waveform observed evidences the relevant physical process of electron emission. We speculate that the primary emission may result from local phase transition and field emission in the vicinity of triple junctions, and the plasma formation may enhance the electron emission.
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| 关 键 词： | 电子散射 电子学 掺杂 PLZST |
| 收稿时间： | 2009-01-16 |
| 修稿时间： | 2009-04-05 |
Electron emission from La-doped Pb(Zr,Sn,Ti)O3 anti-ferroelectrics by pulse electric field and the relevant physical mechanism |
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| ZHANG LinLi,FENG YuJun,XU Zhuo,SHENG ZhaoXuan.Electron emission from La-doped Pb(Zr,Sn,Ti)O3 anti-ferroelectrics by pulse electric field and the relevant physical mechanism[J].Chinese Science Bulletin,2009,54(19):3489-3493. |
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| Authors: | LinLi Zhang YuJun Feng Zhuo Xu ZhaoXuan Sheng |
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| Institution: | 1 Department of Physics, Xi’an University of Architecture and Technology, Xi’an 710055, China;
2 Electronic Materials Research Laboratory, Xi’an Jiaotong University, Xi’an 710049, China |
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| Abstract: | We investigate the characteristics of emission current waves of antiferroelectric cathode material lanthanum-doped lead zirconate stannate titanate (PLZST) triggered by pulse field, and analyze the relationship of the emission current waveforms with the extraction voltage. The close correlation between the triggering pulse polarity and emission current waveform observed evidences the relevant physical process of electron emission. We speculate that the primary emission may result from local phase transition and field emission in the vicinity of triple junctions, and the plasma formation may enhance the electron emission. |
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| Keywords: | ferroelectric cathode antiferroelectric electron emission |
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