Magnetic Transition and Spin Correlation in Mn Oxides at Low Temperatures

Abstract

We study the magnetic transition and spin correlation in Mn oxides at low temperatures. The results indicate that there are antiferromagnetic (AF), spiral (SP), ferromagnetic (FM) and canted (CN) states when T → 0. With temperature increasing, a paramagnetic (PM) state appears. The spin–spin correlation function is also obtained.