Low temperature magnetoresistive effects and coulomb blockade in La<sub>0.7</sub>Ca<sub>0.3</sub>MnO<sub>3</sub> nanoparticles synthesis by auto-Ignition method — Oak Academic Publishing
Research ArticleOpen AccessGoogle Scholar indexed
Low temperature magnetoresistive effects and coulomb blockade in La<sub>0.7</sub>Ca<sub>0.3</sub>MnO<sub>3</sub> nanoparticles synthesis by auto-Ignition method
Electrical transport properties of the La 0.7 Ca 0.3 MnO 3 nanoparticles have been inves-tigated in the temperature range 300 to 9 K as a function of magnetic field. Samples were pre-pared by auto-ignition method. In low tempera-ture regime from 40 to 9 K, an increase in the resistivity has been observed. This effect is found to decrease as magnetic field is increased. It is assumed that these effects are due to the magnetic contacts between the nanoparticles.
Baibich, M.N., Broto, J.M., Fert, A., Nguyen, Van Dau F., Petroff, F., Etienne, P., Creuzet, G., Friederich, A. and Chazelas, J. (1988) Giant magnetoresistance on (001)Fe/ (001) Crmagnetic superlattices. Physical Review Letters, 61, 2472-2475. doi:10.1103/PhysRevLett.61.2472
Berkowitz, A.E., Mitchell, J.R., Carey, M.J., Young, A.P., Zhang, S., Spada, F.E., Parker, F.T., Hutten, A. and Thomas, G. (1992) Giant magnetoresistance in heterogeneous Cu–Co alloys. Physical Review Letters, 68, 3745-3748. doi:10.1103/PhysRevLett.68.3745
Xiao, J.Q., Jiang, J.S. and Chien, C.L. (1992) Giant magnetoresistance in nonmultilayermagnetic systems. Physical Review Letters, 68, 3749-3752. doi:10.1103/PhysRevLett.68.3749
Moodera, J.S., Kinder, L.S., Wong, T.M. and Meservey, R. (1995) Large magnetoresistance at room temperature in ferromagnetic thin films tunnel junctions. Physical Review Letters, 74, 3273-3276. doi:10.1103/PhysRevLett.74.3273
McComick, P.G. and Street, R. (2003) Surface spin disorder and exchange bais in La0.7Ca0.3MnO3 nanoparticles synthesised by mechanochemical prossesing. Reviews on Advanced Materials Science, 5, 76-81.
Garc?′a-Herna′ndez, M., Guinea, F., de Andre′s, A., Mart?′nez, J.L., Prieto, C. and Va′zquez L. (2000) Coulomb blockade versus intergrain resistance in colossal magnetoresistive manganite granular film. Physical Review B, 61, 9549-9552.
von Helmolt, R., Wecker, J., Holzapfel, B., Schultz, L. and Samwer, K. (1993) Giant negative magnetoresistance in perovskitelike La2/3Ba1/3MnOx ferromagnetic films. Physical Review Letters, 71, 2331-2334. doi:10.1103/PhysRevLett.71.2331
Jonker, G.H. and Van Santen, J.H. (1950) Ferromagnetic compounds of manganese with perovskite structure. Physica, 16, 337-345. doi:10.1016/0031-8914(50)90033-4
Wollan, E.O. and Koehler, W.C. (1955) Neutron diffraction studies of the magnetic properties of the series of perovskite-type compounds [(1 ? x)La, xCa]MnO3. Physical Review, 100, 545-563. doi:10.1103/PhysRev.100.545
Shankara, K.S., Kara, S., Subbannab, G.N. and Raychaudhuria A.K. (2004) Enhanced ferromagnetic transition temperature in nanocrystalline lanthanum calcium manganese oxide (La0.67Ca0.33MnO3). Solid State Communications, 129, 479-483.
Lu, Y. et al. (1996) Physical Review B, 54, R8357.
Sun, J.Z. et al. (1997) Temperature dependent, non-ohmic magnetoresistance in doped perovskite manganate trilayer junctions. Applied Physics Letters, 70, 1769.
Rao, C.N.R. and Raveau, R. (1998) Colossal magnetoresistance, charge ordering and related properties of manganese oxides. 1st Edition, World Scientific Publishing Co. Pte. Ltd, Singapore.
Chahara, K., Ohno, T., Kasai, M., Kozono, Y. (1993) Magnetoresistance in magnetic manganese oxide with intrinsic antiferromagnetic spin structure. Applied Physics Letters, 63, 1990. doi:10.1063/1.110624
Siwach, P.K., Singh, H.K. and Srivastava, O.N. (2008) Low field magnetotransport in manganites. Journal of Physics Condensed Matter, 20, 1-43. doi:10.1088/0953-8984/20/27/273201
Niebieskikwiat, D., Sa′nchez, R.D., Lamas D.G. and Caneiro, A. (2003) Tunneling barrier in nanoparticle junctions of La2/3(Ca,Sr)1/3MnO3: Nonlinear current– voltage characteristics. Journal of Applied Physics, 93, 6305-6310. doi:10.1063/1.1568156
Lopez-Quintela, M.A., Hueso, L.E., Rivas, J. and Rivadulla F., (2003) Intergranular magnetoresistance in nanomanganites. Nanotechnology, 14, 212-219. doi:10.1088/0957-4484/14/2/322
Zhao, Y.G. (2005) Electrical transport and magnetic properties of nanostructured La0.67Ca0.33MnO3. Applied Physics A, 81, 607-610.
Garcia-Hemandez, M., de Andres, A., Martinez, J.L., Prieto, C., Munoz. A., Vazquez, L. and Superfi, Y. (1999) Intergranular coulomb blockade in thin films of magnetoresistive manganites. Vacio, 9, 44-47. http://redalyc.uaemex.mx/redalyc/pdf/942/94200911.pdf
Krishnamoorthy, C., Sethupathi, K. and Sankaranarayanan, V. (2004) Synthesis, Characterisation and Electrical Transport Properties of Manganite Nanoparticles. International Symposium of Research Students on Material Science and Engineering, 20-22 December 2004, Chennai, India. http://metallurgy.iitm.ac.in/isrs/isrs04/cd/content/Papers/NM/PO-NM-8.pdf
Mahesh, R., Mahendiran, R., Raychaudhuri, A.K. and Raom, C.N.R. (1996) Effect of particle size on the giant magnetoresistance of La0.7Ca0.3MnO3. Applied Physics Letters, 68, 2291-2293. doi:10.1063/1.116167
Zhang, N., Ding, W., Zhong, W., Xing, D. and Du, Y. (1997) Tunnel-type giant magnetoresistance in the granular perovskite La0.85Sr0.15MnO3. Physical Review B, 56, 8138-8142.
Roy, B., Poddar, A. and Das, S. (2006) Electrical transport properties and magnetic cluster glass behavior of Nd0.7Sr0.3MnO3 nanoparticles. Journal of Applied Physics, 100, 104318.
Mitani, S., Takahashi, S., Takanashi, K., Yakushiji, K., Maekawa, S. and Fujimori, H. (1998) Enhanced magnetoresistance in insulating granular systems: evidence for higher-order tunneling. Physical Review Letters, 81, 2799-2802. doi:10.1103/PhysRevLett.81.2799
Sheng, P., Abeles, B. and Arie, Y. (1973) Hopping Conductivity in Granular Metals. Physical Review Letters, 31, 44-47. doi:10.1103/PhysRevLett.31.44
Balcells, L., Martinez, B., Sandiumenge, F. and Fontcuberta, J. (2000) Low-temperature magnetotransport in nanometric half-metallic ferromagnetic perovskites. Journal of Physics: Condensed Matter, 12, 3013-3018. doi:10.1088/0953-8984/12/13/311
Zener, C. (1951) Interaction between the d-shells in the transition metals: II. Ferromagnetic compounds of manganese with perovskite structure. Physical Review, 82, 403-405. doi:10.1103/PhysRev.82.403
Anderson, P.W. and Hasegawa, H. (1955) Considerations on Double Exchange. Physical Review, 100, 675-681.
A.de Andres, M., Garcia-Hernandez, J.L.M. and Prieto, C. (1999) Low-temperature magnetoresistance in polycrystalline manganites: connectivity versus grain size. Applied Physics Letters, 74, 3884.
Guinea, F. (1998) Spin-flip scattering in magnetic junctions. Physical Review B, 58, 9212.
Caldero′n, M. J., Brey, L. and Guinea, F. (1999) Surface electronic structure and magnetic properties of doped manganites. Physical Review B, 60, p.6698. doi:10.1103/PhysRevB.60.6698
Ott, F., Barberan, S., Lunney, J. G., Coey, J. M. D., Berthet, P., de Leon-Guevara, A.M. and Revcolevschi, A. (1998) Quantized conductance in a contact between metallic oxide crystals. Physical Review B, 58, 4656. doi:10.1103/PhysRevB.58.4656