Disappearance of Superconductivity and Anomalous Magnetic Ordering of PrBa2Cu3O7-y

Results of the depression of superconductivity by substitution of Pr in R0.8Pr0.2Ba2Cu3O7-y (R=Y and rare earths) and the effect of Fe, Co, Ni, Zn, and Ga substitution on the structural, magnetic and electrical properties of PrBa2Cu3O7-y are reported. The ΔTc, whereΔTc =Tc(RBa2Cu3O7-y)-Tc(R0.8Pr0.2Ba2Cu3O7-y), strongly depends on the ionic radius of rare-earth elements. It is interpreted that the strong hybridization between Pr 4f-electrons and conduction holes in Cu-02 planes plays a crucial role in the quenching of superconduvtivity in PrBa2Cu3O7-y. An almost opposite behavior in the depression of TN by the metal substitution observed in PrBa2Cu3O7-y and GdBa2Cu3O7-y indicates possibly different magnetic coupling mechanisms in these compounds. Meanwhile, the more Cu(1) site disorder is introduced, the more effective in suppressing TN and the more insulating behavior are observed. It suggests that the Cu-0 chain transport would play a key role in the magnetic coupling of PrBa2Cu3O7-y.

並列關鍵字

無資料

被引用紀錄

Chen, C. L. (2010). 以模糊理論與高頻項目集為基礎之文件分群研究 [doctoral dissertation, National Chiao Tung University]. Airiti Library. https://doi.org/10.6842/NCTU.2010.00448

張軒豪, H. H. C. (2007). 矽(111)-7×7表面奈米結構在受限制下的自組裝之研究:從晶界到奇異原子團 [doctoral dissertation, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU.2007.00827

Weng, Y. C. (2006). 奈米四氧化三鐵粉體之合成與分析 [master's thesis, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU.2006.00507

方馨怡（2015）。含浸多壁奈米碳管對活性碳纖維布電容器性質之影響〔碩士論文，逢甲大學〕。華藝線上圖書館。https://doi.org/10.6341/fcu.M0116630

廖述杭（2010）。質子交換膜燃料電池用碳奈米管/高分子奈米複合材料雙極板之製備與性質研究〔博士論文，國立清華大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0016-0211201015591135

延伸閱讀

Tai, M. F., Hsu, S. W., Hwang, J. R., Ku, H. C., & Lii, K. H. (1988). Superconducting Properties of the Pseudoquatemary System Y(Ba2-x Srx)Cu3O7-y. Chinese Journal of Physics, 26(1S), 146-151. https://www.airitilibrary.com/Article/Detail?DocID=05779073-198802-201303220001-201303220001-146-151
Chang, B. C., Yang, C. Y., Ku, H. C., Ho, J. C., Tsai, C. B., Chen, Y. Y., & Ling, D. C. (2009). Physical Properties of the Weak-Ferromagnetic Superconductor RuSr2EuCu2O8. Chinese Journal of Physics, 47(4), 529-539. https://www.airitilibrary.com/Article/Detail?DocID=05779073-200908-47-4-529-539-a
Lai, C. C., Lin, T. Y., Li, P. C., Ho, P. C., Hung, C. Y., & Ku, H. C. (1990). Superconducting: and Magnetic Properties of the 120 K Superconductor T1Ca3Ba2Cu4O11-δ. Chinese Journal of Physics, 28(4), 347-354. https://www.airitilibrary.com/Article/Detail?DocID=05779073-199008-201302220022-201302220022-347-354
Chang, B. C. (2009). Physical Properties and Magnetic Anisotropy in Ferromagnetic Superconductor RuSr2GdCu2O8 and Iron-based SmFeAsO system [doctoral dissertation, National Tsing Hua University]. Airiti Library. https://doi.org/10.6843/NTHU.2009.00121
Ku, H. C., Hsu, T. I., Hsu, Y. Y., Leer, T. J., Yeh, K. W., Huang, Y., Lin, J. Y., Chen, S. J., Yang, H. D., Chen, Y. Y., Ho, J. C., & Li, X. G. (1997). Anisotropic Magnetic and Calorimetric Properties of the Incommensurate Modulated Bi2Sr2PrCu2O8+δ Single Crystal. Chinese Journal of Physics, 35(6S), 903-908. https://www.airitilibrary.com/Article/Detail?DocID=05779073-199712-201211120004-201211120004-903-908

國際替代計量

Disappearance of Superconductivity and Anomalous Magnetic Ordering of PrBa2Cu3O7-y

全文下載

主題瀏覽