2008/02/19 by Yue Wang, Yetang Wang, Hai‐Hu Wen +1 · 1 citation
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #cond-mat.supr-con
paper · pdf · doi:10.1209/0295-5075/81/57007
published as EPL,81(2008)57007 · 6 pages,3 figures,1 table
openalex publication_date 2008/02/19 · arxiv created 2008/03/05 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
The low-temperature specific heat of La 2- x Sr x CuO 4 (LSCO) single crystals in the magnetic field H up to 12 T has been examined over a wide range of doping (0.063⩽ p ⩽0.238). From this we have mapped the upper critical field H c 2 of LSCO across the entire superconducting diagram. It is found that the H c 2 shows a doping dependence similar to that of the critical temperature T c . We have discussed the implications of the result and proposed that there may be an effective superconducting energy scale responsible for the H c 2 behavior in the underdoped region.