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博碩士論文 etd-0704101-125617 詳細資訊
Title page for etd-0704101-125617
論文名稱
Title
電子型超導體Pr1.85Ce0.15CuO4之比熱研究
Specific Heat Studies on the Electron-doped Superconductor Pr1.85Ce0.15CuO4
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
76
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2001-06-27
繳交日期
Date of Submission
2001-07-04
關鍵字
Keywords
低溫比熱研究
low-temperature specific heat
統計
Statistics
本論文已被瀏覽 5694 次,被下載 2820
The thesis/dissertation has been browsed 5694 times, has been downloaded 2820 times.
中文摘要
本篇論文是想探討電子型超導體Pr2-xCexCuO4 (0.14<x<0.18) 的配對對稱形式,我們為了達到上述實驗目的,設計了以下實驗步驟:

1. 合成Pr1.85Ce0.15CuO4之樣品,並藉由利用X-Ray粉末繞射儀分析來驗證其晶格結構。
2. 電阻率對溫度的量測,瞭解樣品的臨界溫度與傳輸機制。
3. 磁化率的量測,瞭解樣品的抗磁性,及其超導含量之多寡,以確認樣品的品質。
4. 此系統的氧含量多寡為決定超導與否的關鍵因素,藉由氧含量的量測,以瞭解氧含量與系統超導的相對關係。
5. 低溫比熱的量測來釐清高溫超導體的超導機制究竟是s-wave或是d-wave?若是d-wave配對形式,我們預期能於零磁場測量中,找出電子比熱的T2項。

經過上述實驗分析我們認為此系統是d-wave配對形式,這個結果和C. C. Tsuei 在2000年的PRL所發表的結果是相同的。
Abstract
In this thesis we synthesize Pr1.85Ce0.15CuO4 system by mean of X-ray diffraction, electrical resistivity, magnetic susceptibility and low-temperature specific heat.

From these data analysis, we hope to more clearly understand the transition of electron-doped superconductor Pr2-xCexCuO4 (0.14<x<0.7) system. The main results show that the system is d-wave pairing symmetry. This conclusion is consisted with C. C. Tsuei’s result. They present phase-sensitive evidence that the electron-doped cuprates Pr1.85Ce0.15CuO4 have d-wave pairing symmetry.
目次 Table of Contents
第一章 簡介
第二章 基本比熱理論
第三章 實驗方法
第四章 量測結果與分析
第五章 結論
參考文獻 References
[1] E. Dagotto, Rev. Mod Phys. 66,763 (1994)
[2] J. G. Bednorz and K. A. Muller, Z. Phys. B 64, 198 (1986)
[3] M. K. Wu, J. R. Ashburn, C. J. Torng, P. H. Hor, R. L. Meng, L. Gao, Z. J. Huang, Y. Q. Wang, and C. W. Chu, Phys. Rev. Lett. 58, 908 (1987)
[4] C. W. Chu, L. Gao, F. Chen, Z. J. Huang, R. L. Meng and Y. Y. Xue, Nature 365, 323 (1993)
[5] L. Gao, Y. Y. Xue, F. Chen, Q. Xiong, R. L. Meng, D. Ramirez and C. W. Chou, Phys. Rev. B 50, 4260 (1994)
[6] J. T. markert and M. B. Maple, Solid State Commum. 70, 145 (1989)
[7] J. T. Markert, E. A. Early, T. Bjornholm, S. Ghamaty, B. W. Lee, J. J. Neumeuer, R. D. Price, and M. B. Maple, Physica C 158, 178 (1989)
[8] E. A. Early, N. Y. Ayoub, J. Beille, J. T. Markert, and M. B. Maple, Physica C 160, 320 (1989)
[9] T. C. Huang, E, Moran, A. I. Nazzal, and J. B. Torrance, Physica C 158, 148 (1989)
[10] H. C. Ku, J. H. Shieh, and G. H. Hwang, J. Phys 30, 197 (1992)
[11] Y. T. Zhu and A. Manthiram, Phys. Rev. B 49, 6239 (1994)
[12] P. G. Radaelli, J. D. Jorgensen, A. J. Schultz, J. L. Peng, and R. L. Green, Phys. Rev. B 49, 15322 (1994)
[13] T. Kawashima and E. Takayama-Muromachi, Physica C 219, 389 (1994)
[14] D. Scalapino, Phys. Rep. 250, 329 (1995)
[15] J. F. Annett, N. D. Goldenfeld, and A. J. Leggett, in Physical Properties of High Temperature Superconductor V, edit By D. M. Ginsberg, World Scientific, Singapore (1990)
[16] C. C. Tsuei, and J. R. Kirtley, Phys. Rev. Lett. 85, 182 (2000)
[17] T. E. Hargreaves, H. Noma, J. Akimitsu, D. F. Brewer, N, E. Hussey, and A. L. Thomson, Physica C, 303, 33 (1998)
[18] N. Momono, and M. Ido, Physica C 264, 311 (1996)
[19] K. A. Moler, D. J. Baar, J. S. Urbach, Ruixing Liang, W. N. Hardy, and A. Kaputulnik, Phys. Rev. Lett. 73, 2744 (1994)
[20] K. A. Moler, D. L. Sisson, J. S. Urbach, M. R. Beasley, and A. Kapitulink, Phys. Rev. B 55 3954 (1997)
[21] N. W. Ashcroft and N. D. Mermin, in Solid State Physics, W. B. Saunder Company, Philadelphia (1976)
[22] J. Bardeen, L. N. Cooper, and J. R. Schrieffer, Phys. Rev. 108, 1175 (1957)
[23] W. S. Corak, B. B. Goodman, C. B. Satterthwaite, and A. Wexler, Phys. Rev. 102, 656 (1956)
[24] N. E. Phullips, CRC Crit. Rev. Solid State Sci. 467 (1971)
[25] D. Scalapino, Phys. Rep. 250, 329 (1995)
[26] M. Prohammer, A. Perez-Gonzalez, and J. P. Carbotte, Phys. Rev. B 47, 15152 (1993)
[27] G. E. Volovik, JETP Lett. 58, 469 (1993)
[28] G. E. volovik, JETP Lett. 65, 491 (1997)
[29] S. A. Simon and P.A. Lee, Phys. Rev. Lett. 78, 1548 (1997)
[30] C. Caroli, P. G. deGennes, and J. Matrucon, Phys. Lett. 9, 307 (1964)
[31] F. J. Blatt, P. A. Schroeder, C. L. Foiles, and D. Greig, in Thermoelectric Power of Metals, Plenum Publishing Corporation, New York (1976)
[32] Skoog and west, Fundamentals of Analytical Chamistry
[33] T. E. Hargreaves, H. Noma etc. Physica C 303, 33 (1998)
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