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Enhancement of temperature coefficient of resistance (TCR) and Magneto-resistance (MR) in La1–x Ca x MnO3:Ag0.2 polycrystalline composites

  • Original Paper: Sol-gel and hybrid materials for dielectric, electronic, magnetic and ferroelectric applications
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Abstract

La1−x Ca x MnO3 (x ranges from 0.28 to 0.34) ceramics with Ag addition were synthesized by sol–gel method using methanol as solvent. The EDS elemental mapping shows that Ag element was detected dominantly on the sample surface. The sample of x = 0.28 has almost no pore and bigger grain size, which indicated that it has better crystallization and high density. Temperature dependence of resistivity shows that the samples for all Ca content exhibit sharp metal–insulator transition, and the corresponding metal–insulator temperature shift toward higher temperature with increasing Ca content. The temperature coefficient of resistance value for x = 0.28 reaches its the highest value, 71.8%·K−1. This temperature coefficient of resistance value is even higher than the previously reported for LCMO films and single crystals, and it shows a very promising application for the infrared and bolometric detectors. The high magnetoresitance for x = 0.28 reaches up to 69.3% in magnetic field of 1 T near room temperature. It was concluded that it improved the properties of LCMO:Ag composites are attributed to its improved crystallization by Ag addition, homogeneity and Mn4+/Mn3+ ratio. Different theoretical models are employed to analyze the resistance behaviors in different temperature regions, which give good agreements with experimental results.

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References

  1. Yadav R, Anshul A, Shelke V (2011) Wide range magnetoresistance and high temperature coefficient of resistance in La0.7Sr0.3-x Ag x MnO3 system. J Mater Sci Mater Electron 22:1173–1180

    Article  Google Scholar 

  2. Tokura Y (2006) Critical features of colossal magnetoresistive manganites. Rep Prog Phys 69:797–851

    Article  Google Scholar 

  3. Nagaev EL (2001) Colossal-magnetoresistance materials:manganites andconventional ferromagnetic semiconductors. Phys Rep 346:387–581

    Article  Google Scholar 

  4. Phan MH, Yu SC (2007) Review of the magnetocaloric effect in manganite materials. J Magn Magn Mater 308:325–340

    Article  Google Scholar 

  5. Nasri M, Khelifi J, Triki M et a1. (2016) Impact of CuO phase on magnetocaloric and magnetotransport properties of La0.6Ca0.4MnO3 ceramic composites. J Alloys Compd 678:427–433

    Article  Google Scholar 

  6. Jha R, Singh SK, Kumar A et a1. (2012) Room temperature magnetic entropy change and magnetoresistance in La0.70(Ca0.30-x Sr x )MnO3:Ag 10% (x=0.0-0.10). J Magn Magn Mater 324:2849–2853

    Article  Google Scholar 

  7. Xiong CS, Wei LG, Xiong YH et a1. (2007) Enhanced room temperature magnetoresistance in La0.7 Ca0.2Sr0.1MnO3/Ag composites. J Phys D Appl Phys 40:1331–1334

    Article  Google Scholar 

  8. Yin XP, Liu X, Zhan YH et a1. (2015) Effect of Ag addition on the magnetic and electrical properties of La0.67Ca0.33MnO3 films. Appl Surf Sci 349:983–987

    Article  Google Scholar 

  9. Huang YH, Huang KF, Luo F et al. (2003) Enhanced ferromagnetic transition and magnetoresistance in granular Ag-added La0.7Ca0.3MnO3. J Solid State Chem 174:257–263

    Article  Google Scholar 

  10. Tripathi R, Awana VPS, Kishan H et al. (2008) Search for room temperature high-TCR manganite/silver composites. J Magn Magn Mater 320:L89–L92

    Article  Google Scholar 

  11. Tripathi R, Awana VPS, Kishan H et al. (2008) Impact of Silver Addition on Room Temperature Magneto-Resistance in La0.7Ba0.3MnO3 (LBMO):Agx (x=0.0, 0.1, 0.2, 0.3, 0.4). J Supercond Nov Magn 21:151–159

    Article  Google Scholar 

  12. Manjunatha SO, Rao A, Lin TY et al. (2015) Effect of Ba substitution on structural, electrical and thermal properties of La0.65Ca0.35-x Ba x MnO3 (0≤x≤0.25) manganites. J AlloysCompd 619:303–310

    Google Scholar 

  13. Liu X, Yan YZ, Chen QM et al. (2013) High TCR (temperature coefficient of resistance) La2/3Ca1/3MnO3:Ag x polycrystalline composites. Appl Surf Sci 283:851–855

    Article  Google Scholar 

  14. Vadnala S, Rao TD, Pal P et al. (2014) Study of structural effect on Eu-substituted LSMO manganite for high temperature coefficient of resistance. Physica B: Condens Matter 448:277–280

    Article  Google Scholar 

  15. Awana VPS, Tripathi R, Balamurugan S et al. (2006) Magneto-transport of high TCR (temperature coefficient of resistance) La2/3Ca1/3MnO3:Ag polycrystalline composites. Solid State Commun 140:410–415

    Article  Google Scholar 

  16. Manh DH, Phong PT, Thanh TD et al. (2010) Low-field magnetoresistance of La0.7Ca0.3MnO3 perovskite synthesized by reactive milling method. J Alloys Compd 499:131–134

    Article  Google Scholar 

  17. Wang T, Fang XD, Dong WW et al. (2008) Mechanochemical effects on microstructure and transport properties of nanocrystalline La0.8Na0.2MnO3 ceramics. J Alloys Compd 458:248–252

    Article  Google Scholar 

  18. Vertruyen B, Fagnard JF, Vanderbemden P et al. (2007) Electrical transport and magnetic properties of Mn3O4-La0.7Ca0.3MnO3 ceramic composites prepared by a one-step spray-drying technique. J Eur Ceram Soc 27:3923–3926

    Article  Google Scholar 

  19. Yin XP, Liu X, Yan YZ et al. (2014) Preparation of La0.67Ca0.33MnO3:Agx polycrystalline by sol-gel method. J Sol-Gel Sci Technol 70:361–365

    Article  Google Scholar 

  20. Daoudi K, Tsuchiya T, Kumagai T (2008) Growth and characterization of epitaxial La0.7Ca0.3MnO3 thin films by metal-organic deposition on (LaAlO3)0.3-(SrAlTaO6)0.7 substrates. Thin Solid Films 516:6325–6329

    Article  Google Scholar 

  21. Sun Y, Salamon MB, Chun SH (2002) Magnetocaloric effect and temperature coefficient of resistance of La2/3(Ca,Pb)1/3MnO3. J Appl Phys 92:3235

    Article  Google Scholar 

  22. Daoudi K, Tsuchiya T, Yamaguchi I et al. (2005) Microstructural and electrical properties of La0.7Ca0.3MnO3 thin films grown on SrTiO3 and LaAlO3 substrates using metal-organic deposition. J Appl Phys 98:013507

    Article  Google Scholar 

  23. Wang LM, Wang CY, Tseng CC (2012) Correlation of the temperature coefficient of resistivity for doped manganites to the transition temperature, polaron binding energy, and magnetic order. Appl Phys Lett 100:232403

    Article  Google Scholar 

  24. Venkataiah G, Prasad V, Venugopal Reddy P (2007) Influence of A-site cation mismatch on structural, magnetic and electrical properties of lanthanum manganites. J Alloys Compd 429:1–9

    Article  Google Scholar 

  25. Manjunatha SO, Rao A, Lin TY, Chang CM, Kuo YK (2015) Investigation on structural, magneto-transport, magnetic and thermal properties of La0.8Ca0.2-x Ba x MnO3 (0≤x≤0.2) manganites. J Alloys Compd 640:154–161

    Article  Google Scholar 

  26. Keshri S, Joshi L, Rout SK (2009) Influence of BTO phase on structural, magnetic and electrical properties of LCMO. J Alloys Compd 485:501–506

    Article  Google Scholar 

  27. Daivajna MD, Rao A, Okram GS (2014) Electrical, thermal and magnetic properties of Bi doped La0.7-x Bi x Sr0.3MnO3 manganites. J Alloys Compd 617:345–351

    Article  Google Scholar 

  28. Chen FY, Wu YY, Xiong YH et al. (2012) Electrical properties and enhanced room temperature magnetoresistance in La0.7Ca0.2Sr0.1MnO3/Pd composites prepared by chemical plating. J Magn Magn Mater 324:3286–3290

    Article  Google Scholar 

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant No. 11564021).

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Authors and Affiliations

  1. Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China

    Fei Jin, Hui Zhang, Xiaohui Chen, Xiang Liu & Qingming Chen

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  1. Fei Jin
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  2. Hui Zhang
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  3. Xiaohui Chen
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  4. Xiang Liu
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  5. Qingming Chen
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Correspondence to Qingming Chen.

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Jin, F., Zhang, H., Chen, X. et al. Enhancement of temperature coefficient of resistance (TCR) and Magneto-resistance (MR) in La1–x Ca x MnO3:Ag0.2 polycrystalline composites. J Sol-Gel Sci Technol 82, 193–200 (2017). https://doi.org/10.1007/s10971-016-4294-7

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  • DOI: https://doi.org/10.1007/s10971-016-4294-7

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