Hall-Effect Studies of Bulk (R0.8Pr0.2)Ba2Cu3O7-y Systems (R = Yb, Er, Dy, Gd, Eu and Nd)

We report detailed studies of the normal state Hall-effect in bulk R0.8Pr0.2Ba2Cu3O7-y, samples (R = Yb, Er, Dy, Gd, Eu, and Nd). We find a linear temperature dependence of the Hall number nH above Tc. At a constant temperature nH is linearly dependent on ion-size of rare earth, viz. the larger R^3+ ionic radius, the lower nH. The cotangent of the Hall angle follows a universal T^2 dependence, i.e., cot өH = αT^2 + C. Both the slope α and the quantity C is insensitive to R ion and remains almost constant. On the basis of our data we proposed a Tc - nH diagram which manifests an ”underdoping”behavior of R0.8Pr0.2Ba2Cu3O7-y systems. We suggest that the strong hybridization between 4f-states of the Pr ion and the conduction band states in CuO2 planes, leading to the hole localization and the pair-breaking, are the mechanism for the suppression of superconductivity in R1-=PrxBa2Cu3O7-y systems.

並列關鍵字

無資料

被引用紀錄

Nguyen, Q. A. (2013). 多極式磁流變液煞車器之整體設計與開發 [doctoral dissertation, National Taipei University of Technology]. Airiti Library. https://doi.org/10.6841/NTUT.2013.00384

Pan, R. (2011). 智慧型控制應用於電流變液與磁流變液支撐墊之減震研究 [doctoral dissertation, National Taipei University of Technology]. Airiti Library. https://doi.org/10.6841/NTUT.2011.00588

Chiu, C. W. (2017). 五苯荑分子剎車系統之分子運動模式與激發態鬆弛行為之探討 [master's thesis, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU201703902

侯玢妙（2015）。五苯荑衍生之新型光控分子煞車系統〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2015.01200

Chen, H. Y. (2008). 台灣地區2000至2004年腸病毒感染之生態及季節相關 [master's thesis, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU.2008.01415

延伸閱讀

Chang., C. L., Tsay., H. Y., & Lee, J. F. (1998). EXAFS Study of the Local Environment around the Rare Earth Site in R1-χCaχBa2Cu3O7-δ (R=Gd and Ho). Chinese Journal of Physics, 36(2), 114-119. https://www.airitilibrary.com/Article/Detail?DocID=05779073-199804-201211010026-201211010026-114-119
Allah, S. S. A., Xu, Y. H., & Heiden, C. (1993). Suppression for Superconductivity by Zn Doping in RBa2Cu3-χZnxO7-y Systems (R=Yb, Er, Y, Dy, Gd, Eu, Sm, and Nd). Chinese Journal of Physics, 31(6S), 987-991. https://www.airitilibrary.com/Article/Detail?DocID=05779073-199312-201212270032-201212270032-987-991
Chen, K. C. (2021). An ab-initio study of electronic structure and magneto-optical effects of bulk Cr2X2Y6 (X= Ge, Si ; Y= Te, Se) [master's thesis, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU202103308
Shi, J. B., & Tsao, H. J. (1996). Synthesis and Magnetism of (Hg0.7Bi0.3) Sr2RCu2O6+δ (R = Pr, Nd, and Gd) System. Chinese Journal of Physics, 34(2S), 259-262. https://www.airitilibrary.com/Article/Detail?DocID=05779073-199604-201212030010-201212030010-259-262
Huang, C. Y., Chang, P. H., Wang, L. M., Yang, H. C., Lin, C. H., Sung, H. H., Chen, C. S., Horng, H. E., Wang, C. W., Lin, E. K., Yu, Y. C., & Liu, Y. C. (1993). Hall Effects in Irradiated YBa2Cu3Oy Films Near Their Critical Temperatures. Chinese Journal of Physics, 31(6S), 859-866. https://www.airitilibrary.com/Article/Detail?DocID=05779073-199312-201212270032-201212270032-859-866

國際替代計量

Hall-Effect Studies of Bulk (R0.8Pr0.2)Ba2Cu3O7-y Systems (R = Yb, Er, Dy, Gd, Eu and Nd)

全文下載

主題瀏覽