請用此 Handle URI 來引用此文件：
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/56374完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 陳政維(Jeng-Wei Chen) | |
| dc.contributor.author | Chi-Shen Li | en |
| dc.contributor.author | 李啟申 | zh_TW |
| dc.date.accessioned | 2021-06-16T05:25:39Z | - |
| dc.date.available | 2014-08-21 | |
| dc.date.copyright | 2014-08-21 | |
| dc.date.issued | 2014 | |
| dc.date.submitted | 2014-08-14 | |
| dc.identifier.citation | [1] G. Huo, S. Liu, Y. Wang, Y. Wang, J. Alloys Compd. 428 (2007) L1.
[2] J. Androulakis, J. Giapintzakis, Physica B 405 (2010) 107. [3] R.N. Mahato, K. Sethupathi, V. Sankaranarayanan, R. Nirmala, J. Magn. Magn. Mater. 322 (2010) 2537. [4] L. Han, C. Chen, J. Mater. Sci. Technol. 26 (3) (2010) 234. [5] P.A. Salvador, K.B. Greenwod, J.R. Mawdsley, K.R. Poeppelmeier, T.O. Mason, Chem. Mater. 11 (1999) 1760. [6] P.W. Rehrig, S.E. Park, S. Trolier-McKinstry, G.L. Messing, B. Jones, T.R. Shrout, J. Appl. Phys. 86 (1999) 1657. [7] R. von Helmolt, J. Wecker, B. Holzapfel, L. Schultz, K. Samwer, Phys. Rev. Lett. 71 (1993) 2331. [8] Y. Tokura, Y. Tomioka, J. Magn. Magn. Mater. 200 (1999) 23. [9] X.X. Zhang, J. Tejada, Y. Xin, G.F. Sun, K.W. Wong, X. Bohigas, Appl. Phys. Lett. 69 (1996) 3596. [10] A. Daoudi and G. Le Flem, J. Solid State Chem. 5 (1972) 57. [11] C. Chaumont, A. Daoudi, G. Le Flem and P. Hagenmuller, J. Solid State Chem. 14 (1975) 335. [12] N. Kamegashira, A. Shimono, H. W. Xu, H. Satoh, K. Hayashi and T. Kikuchi, Mater. Chem. Phys. 26 (1990) 483. [13] J. Takahashi, T. Kikuchi, H. Satoh and N. Kamegashira, J. Alloys and Compds. 192 (1993) 96. [14] N. Chihaoui, R. Dhahri, M. Bejar, E. Dhahri, L.C. Costa, M.P.F. Grac﹐ a, Solid State Commun. 151 (2011) 1331. [15] J. Takahashi, N. Kamegashira, Mater. Res. Bull. 28 (1993) 451. [16] Hewlett-Packard Inc., Basics of Measuring the Dielectric Properties of Materials, Application Note 1217-1. [17] D. C. Sinclair F. D. Morrison, and A. R. West, J. Am. Ceram. Soc. 84 (2001) 31. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/56374 | - |
| dc.description.abstract | 本論文研究稀土取代鈣錳氧化物 [Ca2-xLnxMnO4, 其中 Ln = Nd and Y] 的製作、特性、介電性質，而介電性質在絕對溫度20 K ~ 300 K之間以20 Hz ~ 1 MHz外加電壓頻率作研究。
Ln = Nd或Y時，在x > 0.3時觀察低溫的介電的相，活化能會隨著取代量x增加而增加。研究介電常數、損耗因子、熱激發的活化能、模數和柯爾柯爾圖等極化性質。 | zh_TW |
| dc.description.abstract | The synthesis, characterization and dielectric properties of rare earths substituted calcium manganese oxides [Ca2-xLnxMnO4, where Ln = Nd and Y] compounds were investigated. The dielectric properties of these compounds were studied in the frequency range from 20 Hz to 1 MHz between 20 K and 300 K.
The low temperature dielectric properties is studied when x > 0.3 for Ln = Nd and Y. The activation energies increase as the amount of substitution x increase. Compounds for x > 0.3 are studied in dielectric permittivity, dissipation factor, activation energy with thermally activated process, modulus spectra, and cole-cole plot. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-16T05:25:39Z (GMT). No. of bitstreams: 1 ntu-103-R01222058-1.pdf: 1872466 bytes, checksum: 0b754cab0794b4ba356b2f00c0081388 (MD5) Previous issue date: 2014 | en |
| dc.description.tableofcontents | 致 謝 i
摘 要 ii Abstract iii Tables of Contents iv List of Pictures vi List of Tables xi Chapter 1 Introduction 1 Chapter 2 General Background 3 a. Complex Permittivity 3 b. The Mechanism of Polarization 5 c. Debye Equations 8 d. Arrhenius law 11 Chapter 3 Experimental Details 12 A. Sample Preparation 12 a.Ca2MnO4 12 b.Ca2-xNdxMnO4 13 c.Ca2-xYxMnO4 14 B. X-ray diffraction 15 C. Dielectric Properties Measurement 16 Chapter 4 Results and Discussion 17 a. Ca2MnO4 17 b.Ca1.7Nd0.3MnO4 24 c. Ca1.6Nd0.4MnO4 31 d. Ca1.5Nd0.5MnO4 38 e. Ca1.7Y0.3MnO4 47 f. Ca1.6Y0.4MnO4 54 g. Ca1.5Y0.5MnO4 62 h. CaYMnO4 70 Chapter 5 Conclusion 78 References 81 | |
| dc.language.iso | zh-TW | |
| dc.subject | 釹 | zh_TW |
| dc.subject | 活化能 | zh_TW |
| dc.subject | 介電常數 | zh_TW |
| dc.subject | 鈣錳氧化物 | zh_TW |
| dc.subject | 釔 | zh_TW |
| dc.subject | 損耗因子 | zh_TW |
| dc.subject | activation energy | en |
| dc.subject | Calcium Manganese Oxides | en |
| dc.subject | Neodymium | en |
| dc.subject | Yttrium | en |
| dc.subject | dielectric permittivity | en |
| dc.subject | dissipation factor | en |
| dc.title | 稀土取代鈣錳氧化物的介電性質 | zh_TW |
| dc.title | Dielectric Response of Rare Earths Substituted Calcium Manganese Oxides | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 102-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 陳銘堯(Ming-Yau Chern),傅昭銘(Chao-Ming Fu) | |
| dc.subject.keyword | 鈣錳氧化物,釹,釔,介電常數,損耗因子,活化能, | zh_TW |
| dc.subject.keyword | Calcium Manganese Oxides,Neodymium,Yttrium,dielectric permittivity,dissipation factor,activation energy, | en |
| dc.relation.page | 82 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2014-08-15 | |
| dc.contributor.author-college | 理學院 | zh_TW |
| dc.contributor.author-dept | 物理研究所 | zh_TW |
| 顯示於系所單位： | 物理學系 | |
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