Magnetic phase transition and electrical transport properties of the Sr-doped Eu1-x Sr-x MnO3 system

作者：Zhang Jia-Jia; Cao Shi-Xun^*; Yuan Shu-Juan; Li Zhe; Kang Bao-Juan; Zhang Jin-Cang

来源：Acta Physica Sinica, 2010, 59(9): 6494-6500.

• Eu1-x Sr-x MnO3 system
• Sr-doped
• variable range hopping

The structure and magnetic properties of the Eu1-x Sr-x MnO3 (ESMO x = 0-1) system have been systematically studied. The results indicate that the substitution of Sr for Eu can greatly change the magnetic properties of antiferromagnetic EuMnO3 matrix. In the case of high doping compounds (Eu0.4Sr0.6MnO3 and Eu0.3Sr0.7MnO3), the abnormal magnetic and electrical properties result from the competition between their being ferromagnetic and antiferromagnetic. At low temperature, the conducting behavior of the Eu0.4Sr0.6MnO3 and Eu0.3Sr0.7MnO3 are well fitted by the Mott variable range hopping (VRH) model.

• 出版日期2010-9
• 单位上海大学