Phase Separation and Magnetoresistance in Nd0.52Sr0.48MnO3
LI Zhi-Qing1,2, JIANG En-Yong1,2, LIU Hui1,2, LI Yang-Xian3, YU Ao4, LIU Xin-Dian1,2, WU Ping1,2, BAI Hai-Li1,2
1Department of Applied Physics, School of Science, Tianjin University, Tianjin 300072
2Key Laboratory for Advanced Ceramics and Machining Technology of Ministry Education, Tianjin University, Tianjin 300072
3School of Material Science and Engineering, Hebei
University of Technology, Tianjin 300130
4Central Laboratory, Nankai University, Tianjin 300071
Phase Separation and Magnetoresistance in Nd0.52Sr0.48MnO3
LI Zhi-Qing1,2;JIANG En-Yong1,2;LIU Hui1,2;LI Yang-Xian3;YU Ao4;LIU Xin-Dian1,2;WU Ping1,2;BAI Hai-Li1,2
1Department of Applied Physics, School of Science, Tianjin University, Tianjin 300072
2Key Laboratory for Advanced Ceramics and Machining Technology of Ministry Education, Tianjin University, Tianjin 300072
3School of Material Science and Engineering, Hebei
University of Technology, Tianjin 300130
4Central Laboratory, Nankai University, Tianjin 300071
Abstract： Polycrystalline Nd0.52Sr0.48MnO3 ceramic is prepared by a Pechini process. Its electron spin resonance spectra, magnetic and transport properties have been investigated experimentally. At temperature above 270 K, the compound is paramagnetic insulator, while in temperature between 160 K and 270 K, the compound is separated into a paramagnetic insulator and a ferromagnetic metal coexisting state. Below 160 K, theferromagnetic phase coexists with an antiferromagnetic state, but the ferromagnetic phase remains to be dominant. This makes the compound exhibiting a metallic character even at temperature far below TN.
(Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance)
引用本文:
LI Zhi-Qing;JIANG En-Yong;LIU Hui;LI Yang-Xian;YU Ao;LIU Xin-Dian;WU Ping;BAI Hai-Li;. Phase Separation and Magnetoresistance in Nd0.52Sr0.48MnO3[J]. 中国物理快报, 2003, 20(9): 1589-1592.
LI Zhi-Qing, JIANG En-Yong, LIU Hui, LI Yang-Xian, YU Ao, LIU Xin-Dian, WU Ping, BAI Hai-Li,. Phase Separation and Magnetoresistance in Nd0.52Sr0.48MnO3. Chin. Phys. Lett., 2003, 20(9): 1589-1592.
2003, Vol. 20 
