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.

引用

页数：5

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