Effect of superconducting spacer layer thickness on magneto-transport and magnetic properties of La{sub 0.7}Sr{sub 0.3}MnO{sub 3}/YBa{sub 2}Cu{sub 3}O{sub 7}/La{sub 0.7}Sr{sub 0.3}MnO{sub 3} heterostructures

Journal Article · Tue Jan 07 00:00:00 EST 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4861139· OSTI ID:22271289

Sharma, Minaxi; Pandey, Pankaj K.; Choudhary, R. J.; Venkateshwarlu, D.; Ganesan, V. ^[1]; Kumar, Ravi ^[2]

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1. UGC-DAE-Consortium for Scientific Research, Khandwa Road, Indore, MP 452001 (India)
2. Centre for Material Science and Engineering, National Institute of Technology, Hamirpur, HP 177005 (India)

We have studied the magneto-transport and magnetic properties of LSMO/YBCO/LSMO trilayers on LaAlO{sub 3} (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 ∼49% at 250 K for LSMO(200 nm)/YBCO(50 nm)/LSMO(200 nm) trilayer. Magnetization measurements reveal that at room temperature the YBCO spacer layer is allowing the LSMO layers to interact antiferromagnetically.

• OSTI ID: 22271289
• Journal Information: Journal of Applied Physics, Vol. 115, Issue 1; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM OXIDES
COPPER OXIDES
CRITICAL TEMPERATURE
CUPRATES
ENERGY BEAM DEPOSITION
HIGH-TC SUPERCONDUCTORS
LANTHANUM COMPOUNDS
LASER RADIATION
LAYERS
MAGNETIC PROPERTIES
MAGNETIZATION
MAGNETORESISTANCE
MANGANATES
PHONONS
PULSED IRRADIATION
SUBSTRATES
TEMPERATURE DEPENDENCE
THICKNESS
X-RAY DIFFRACTION
YTTRIUM OXIDES