| KTN的核磁共振研究 |
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| 引用本文： | 杨德林 Dimit.,C.KTN的核磁共振研究[J].河南科学,1996,14(2):144-147. |
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| 作者姓名： | 杨德林 Dimit. C |
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| 作者单位： | 郑州大学物理工程学院 |
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| 摘 要： | 研究了掺Ｎｂ浓度为０．１５的ＫＴＮ晶体中＾１８１Ｔａ和＾９３Ｎｂ的核磁共振信号的线宽和（积分）强度对温度的依赖性。通过两种核的信息分析，我们观察到在１２０Ｋ－２３０Ｋ之间晶体发生二次相变，而且发现两种核的共振线的展宽起源是不同的。我们也把＾１８１Ｔａ的信号与两种标定纯的ＫＴａＯ３晶体的相应信号作了比较，发现“消除”效应都存在。
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| 关 键 词： | NMR 信号强度 线宽 相变 KTN晶体 |
NMR STUDIES OF KTN |
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| Yang Delin, C.Dimitropoulos.NMR STUDIES OF KTN[J].Henan Science,1996,14(2):144-147. |
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| Authors: | Yang Delin CDimitropoulos |
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| Abstract: | We have studied the temperature dependence of the NMR Linewidth and (integral)intensity of 181Taand 93Nb in a KTN crystal with a nominal Nb fraction 0.15. By analysing the information of the two typesof nuclei,we observed two time phase transitions between 120K-230K and concluded that the sources ofbroadening are different for them. The 181Ta signal has been compared to that of two nominally pureKTaO3-MIT and BS-89 crystals, the wipeout-effect exists in all three crystals. |
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| Keywords: | Nuclear Magnetic Resonance(NMR) Phase transition Linewidth Signal intensity |
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