Mean-field behavior with Gaussian fluctuations at the ferromagnetic phase transition of SrRuO3 -: art. no. 100406

Specific heat, resistivity, and magnetization have been measured through the ferromagnetic critical point for single-crystal SrRuO3. All data are well fitted to small reduced temperatures with mean-field critical exponents including Gaussian fluctuations. The specific heat and temperature derivative of resistivity scale with each other, confirming the Fisher-Langer relation. A long magnetic correlation length due to 4d-electron itinerancy is likely responsible for the mean-field behavior.