Size-dependent exchange bias in single phase Mn<sub>3</sub>O<sub>4</sub> nanoparticles

Size-dependent exchange bias in single phase Mn₃O₄ nanoparticles

Wang Song-Wei^{1, 2}, Zhang Xin^{1, 2, †,}, Yao Rong^{1, 2}, Rao Guang-Hui^{1, 2, ‡,}

(a) Normalized DC remanent magnetization m_d(H) and normalized isothermal remanent magnetization m_r(H) for 60 nm Mn₃O₄ at 3 K. (b) m_d(H) versus m_r(H) for 30 nm, 60 nm, and 90 nm Mn₃O₄ nanoparticles at 3 K. Inset shows the behavior of Δm(H) at 3 K.