Effect of superconducting spacer layer thickness on magneto-transport and magnetic properties of La0.7Sr0.3MnO3/YBa2Cu3O7/La0.7Sr0.3MnO3 heterostructures

被引：5
|
作者：
Sharma, Minaxi [1 ]
Pandey, Pankaj K. [2 ]
Sharma, K. K. [1 ]
Kumar, Ravi [3 ,4 ]
Choudhary, R. J. [2 ]
Venkateshwarlu, D. [2 ]
Ganesan, V. [2 ]
机构：
[1] Natl Inst Technol, Dept Phys, Hamirpur 177005, HP, India
[2] UGC DAE Consortium Sci Res, Indore 452001, Madhya Pradesh, India
[3] Natl Inst Technol, Ctr Mat Sci & Engn, Hamirpur 177005, HP, India
[4] Beant Coll Engn & Technol, Gurdaspur 143521, Punjab, India
来源：
JOURNAL OF APPLIED PHYSICS | 2014年 / 115卷 / 01期
关键词：
ELECTRICAL-TRANSPORT; DOUBLE EXCHANGE; MAGNETORESISTANCE;
D O I：
10.1063/1.4861139
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have studied the magneto-transport and magnetic properties of LSMO/YBCO/LSMO trilayers on LaAlO3 (001) substrate, deposited using pulsed laser deposition technique. From x-ray diffraction measurements, it is confirmed that the grown trilayer films are single phase natured. The temperature dependent resistivity shows a metallic behavior below 350 K. At low temperature from resistivity fitted data, we observe that electron-electron, electron-phonon, and electron-magnon interactions are the main factors for scattering of carriers. The ferromagnetic LSMO layers suppress the critical temperature of YBCO spacer layer. We observe maximum magnetoresistance value similar to 49% at 250K for LSMO(200 nm)/YBCO(50nm)/LSMO(200nm) trilayer. Magnetization measurements reveal that at room temperature the YBCO spacer layer is allowing the LSMO layers to interact antiferromagnetically. (C) 2014 AIP Publishing LLC.
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页数：5
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