Paper Title:
Characteristic of Raman Spectra, Crystal Structure and Superconductivity of Fe-Doped GdBa2Cu3-xFexO7-δ Systems
  Abstract

The effects of Fe doping on the structure, electronic transport properties and Raman spectra of GdBa2Cu3-xFexO7-δ (x = 0.00-0.30) systems have been investigated. The analysis of X-ray diffraction patterns shows that the compound undergoes an Orthorhombic–Tetragonal (O-T) phase transition in the doping range of x = 0.05-0.10. The superconducting transition temperature Tc decreases with the increase of Fe doping level, whereas the superconducting transition width increases abruptly with O-T transition. We have discussed the Raman shifts and intensity of the five normal phonon peaks and some other peaks which result from the vibration of Cu(1) and O(1) oxygen for the Fe doped-samples. These investigations reveal that the electronic transport properties and Raman spectra of GdBa2Cu3-xFexO7-δ composites obviously depend on O-T transition induced by the Fe doping.

  Info
Periodical
Advanced Materials Research (Volumes 194-196)
Edited by
Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang
Pages
1849-1853
DOI
10.4028/www.scientific.net/AMR.194-196.1849
Citation
T. Li, R. Z. Xue, C. M. Wang, L. Su, H. Y. Dai, Z. P. Chen, "Characteristic of Raman Spectra, Crystal Structure and Superconductivity of Fe-Doped GdBa2Cu3-xFexO7-δ Systems", Advanced Materials Research, Vols. 194-196, pp. 1849-1853, 2011
Online since
February 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ho Keun Lee
Abstract:The effect of Co-doping and thermal treatments on the superconducting properties of the heavily overdoped (Lu0.8Ca0.2)Ba2Cu3Oz has been...
108
Authors: Y.H. Sun, Min Chen, W.K. An, A.H. Cai, J. Liu, K.L. Su
Abstract:Tb-doped bismuth titanate (BixTbyTi3O12: BTT) and pure Bi4Ti3O12 (BIT) thin films with random orientation were fabricated on Pt/Ti/SiO2/Si...
82
Authors: Chun Li, Da Li, Qian Feng Fang
Abstract:Based on the oxygen ion conductor La2Mo1.5W0.5O9, a series of Ag2O doped samples La2Mo1.5W0.5O9/Ag were prepared with conventional...
620
Authors: Xin You Huang, Chun Hua Gao, Zhi Gang Chen
2663
Authors: Ping Wang
Chapter 2: Materials Science
Abstract:Ternary titanium aluminum carbide powder was prepared by pressureless sintering at different temperature using elemental powder mixture of...
645