Critical Behaviour of Sintered SrRuO3

作     者：侯登录 李凤舞 等 

作者机构：DepartmentofAppliedPhysicsTianjinUniversityTianjin300072 FacultyofContinuingEducationYanshanUniversityQinhuangdao066004 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2002年第19卷第5期

页      面：733-735页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 081201[工学-计算机系统结构] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：国家自然科学基金 

主　　题：Ruthenium compounds 

摘      要：From the measurements of the ac susceptibility of SrRuO3, we determine the critical temperature Tc = 159.7±0.2K and critical exponents δ = 2.50±0.15 (from the critical isotherm) or δ = 3.17±0.20 (from magnetization versus magnetic field at Curie temperature), γ + β = 1.50±0.05 (from the temperature dependence of the internal field of the crossover line), and γ = 0.96±0.05 (from the temperature dependence of the susceptibility along the same line). These exponent values are very close to those predicted by the mean field model.