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Title: Transport properties of La{sub 0.7}Sr{sub 0.3}MnO{sub 3}/YBa{sub 2}Cu{sub 3}O{sub 7-δ} (LSMO/YBCO) heterostructure

We report on the transport properties of La{sub 0.7}Sr{sub 0.3}MnO{sub 3} (200 nm)/YBa{sub 2}Cu3O{sub 7-δ} (50 nm) (LSMO/YBCO) heterostructure in the presence and absence of magnetic field, deposited on LaAlO3 (001) substrate using pulsed laser deposition technique. X- ray diffraction pattern confirms that the grown heterostructure is single phase in nature. The temperature dependent resistivity shows a metallic behavior below 304 K, superconductivity is completely suppressed by the presence of thick LSMO layer. From resistivity-temperature (ρ-T) curve, we have also observed the metal to insulator transition temperature at 304 K and increases to higher temperature side (353 K) on the application of magnetic field. We found a maximum magnetoresistance ratio ∼47% at 246 K temperature. Temperature co-efficient of resistance is ∼1.7 % K{sup −1} at 202 K, can be useful for bolometric performances and temperature sensors.
Authors:
;  [1] ;  [2] ;  [2] ;  [3] ;  [4]
  1. Department of Physics, National Institute of Technology, Hamirpur (H.P.) 177005 (India)
  2. Centre for Material Science and Engineering, National Institute of Technology, Hamirpur (H.P.) 177005 (India)
  3. (India)
  4. UGC-DAE Consortium for Scientific Research, Khandwa Road, Indore (M.P.) 452001 (India)
Publication Date:
OSTI Identifier:
22391713
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1661; Journal Issue: 1; Conference: ICCMP 2014: International Conference on Condensed Matter Physics 2014, Shimla (India), 4-6 Nov 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BARIUM OXIDES; BOLOMETERS; COPPER OXIDES; ENERGY BEAM DEPOSITION; HIGH-TC SUPERCONDUCTORS; INTERFACES; LANTHANUM COMPOUNDS; LASER RADIATION; MAGNETIC FIELDS; MAGNETORESISTANCE; MANGANATES; PULSED IRRADIATION; SENSORS; STRONTIUM COMPOUNDS; SUBSTRATES; SUPERCONDUCTIVITY; TEMPERATURE DEPENDENCE; TRANSITION TEMPERATURE; X-RAY DIFFRACTION; YTTRIUM OXIDES