2003/01/30 by F. Rullier-Albenque, H. Alloul, R. Tourbot · 1 citation
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Computer science #Magnetic and transport properties of perovskites and related materials #Phase (matter) #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.91.047001
5 pages, 4 figures
arxiv created 2003/01/30 · openalex publication_date 2003/07/23 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Electron irradiation has been used to introduce point defects in a controlled way in underdoped and optimally doped YBa(2)Cu(3)O(7-delta) crystals. This technique allows us to perform very accurate measurements of T(c) and of the ab plane resistivity in a wide range of defect contents x(d) down to T(c)=0. The variation of T(c) and of the transition width with x(d) do not follow current predictions of pair-breaking theories. The data are rather compatible, at least for the highly damaged regime, with the expected influence of phase fluctuations. These results open new questions about the evolution of the defect induced T(c) depression over the phase diagram of the cuprates.