Low-Temperature Electrical Resistivity of Bilayered LaSr2Mn2O7 Manganite

被引：0
|
作者：
Ehsani, M. H. [1 ]
Mehrabad, M. Jalali [1 ]
Kameli, P. [2 ]
Ghazi, M. E. [3 ]
Razavi, F. S. [4 ]
机构：
[1] Semnan Univ, Dept Phys, Semnan 35195363, Iran
[2] Isfahan Univ Technol, Dept Phys, Esfahan 841568311, Iran
[3] Shahrood Univ, Dept Phys, Shahrood 36155316, Iran
[4] Brock Univ, Dept Phys, St Catharines, ON L2S 3A1, Canada
来源：
JOURNAL OF LOW TEMPERATURE PHYSICS | 2016年 / 183卷 / 5-6期
关键词：
Bilayered manganite; Low-temperature; Electrical properties; Magneto-resistance (MR); GIANT MAGNETORESISTANCE; MAGNETOTRANSPORT PROPERTIES; DOPED LASR2MN2O7; TRANSPORT; LA1.2SR1.8MN2O7; BEHAVIOR; STATE;
D O I：
10.1007/s10909-016-1520-1
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Low-temperature transport and magneto-resistance properties were systemically studied for the bilayered polycrystalline LaSr2Mn2O7 manganite under an applied magnetic field from 0 to 9 T. The results obtained from the resistivity measurements between 70 and 130 K were fitted using the electron-electron (e-e) and electron-magnon (e-m) scattering models. The temperature dependence of resistivity showed an upturn behavior at low temperatures (similar to T < 45 K) under various applied magnetic fields. Best fits were obtained by using a variable-range hopping model. The magneto-resistance behavior observed at low temperatures supports the magnetic properties of the sample.
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收藏
页码：359 / 370
页数：12
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