Artículos de revistas
Effect Of Gd3+ Doping On Magnetic, Electric And Dielectric Properties Of Mggdxfe2-xo4 Ferrites Processed By Solid State Reaction Technique
Registro en:
Journal Of Alloys And Compounds. , v. 509, n. 40, p. 9638 - 9644, 2011.
9258388
10.1016/j.jallcom.2011.07.055
2-s2.0-80052312053
Autor
Chand J.
Kumar G.
Kumar P.
Sharma S.K.
Knobel M.
Singh M.
Institución
Resumen
MgGdxFe2-xO4 (x = 0.0, 0.05, 0.1 and 0.15) ferrites, with improved dc resistivity, initial permeability, saturation magnetization, and extremely low relative loss factor, have been synthesized by solid state reaction technique. The microstructures, electric, dielectric and magnetic properties have been investigated by means of X-ray diffraction, Keithley 2611 system, impedance analyzer and VSM respectively. The addition of Gadolinium in Mg ferrite has been shown to play a crucial role in enhancing the electric, dielectric and magnetic properties. The dc resistivity is increased by two orders of magnitude as compared to Mg ferrite. Saturation magnetization has been increased by two times and remnant magnetization has been increased by more than three times due to the doping of Gd3+ ions in Mg ferrite. The relative loss factor was found to have very low values and is of the order of 10-4-10-5 in the frequency range 0.1-30 MHz. The variations of electric, dielectric and magnetic properties of the samples have been studied as a function of frequency and Gd3+ ions concentration measured at room temperature. High resistivity and improved magnetic properties can be correlated with better compositional stoichiometry and the replacement of Fe3+ ions by Gd3+ ions. The mechanisms responsible to these results have been discussed in this paper. © 2011 Elsevier B.V. All rights reserved. 509 40 9638 9644 Khandekar, M.S., Kambale, R.C., Patil, J.Y., Kolekar, Y.D., Suryavanshi, S.S., (2011) J. Alloys Compd., 509, pp. 1861-1865 Pradeep, A., Priyadharsini, P., Chandrasekaran, G., (2011) J. Alloys Compd., 509, pp. 3917-3923 Atif, M., Nadeem, M., Grossinger, R., Sato Turtelli, R., (2011) J. Alloys Compd., 509, pp. 5720-5724 Venkataraju, C., Sathishkumar, G., Sivakumar, K., (2011) J. Magn. Magn. Mater., 323, pp. 1817-1822 Anis-Ur-Rehman, M., Malik, M.A., Akram, M., Khan, K., Maqsood, A., (2011) Phys. Scr., 83, p. 015602 Chand, J., Singh, M., (2009) J. Alloys Compd., 486, pp. 376-379 Singh, A.K., Singh, A.K., Goel, T.C., Mendiratta, R.G., (2004) J. Magn. Mater., 281, p. 276 Sharma, R.K., Suwalka, O., Lakshmia, N., Venugopalana, K., Banerjeeb, A., Joyc, P.A., (2005) Mater. Lett., 59, pp. 3402-3405 Lakshman, A., Rao, K.H., Mendiratta, R.G., (2002) J. Magn. Magn. Mater., 250, p. 92 Keluskar, S.H., Tangsali, R.B., Naik, G.K., Budkuley, J.S., (2006) J. Magn. Magn. Mater., 305, p. 296 Verma, A., Goel, T.C., Mendiratta, R.G., Alam, M.I., (1999) Mater. Sci. Eng. B, 60, pp. 156-162 Thakur, S., Katyal, S.C., Gupta, A., Reddy, V.R., Singh, M., (2009) J. Appl. Phys., 105. , 07A521-3 Wang, C.-S., Gu, X.-F., Sun, Y.-G., Gao, E.-J., Zhang, W.-Z., (2009) Chem. Res. Chin. Univ., 25 (5), pp. 614-619 Bhowmik, R.N., Ranganathan, R., (2002) J. Magn. Magn., 248, p. 101 Gozuak, F., Koseoglu, Y., Baykal, A., Kavas, H., (2009) J. Magn. Magn., 321, pp. 2170-2177 Neel, L., (1948) Ann. Phys. Paris, 3, pp. 137-198 Gieraltowski, J., Globus, A., (1977) IEEE Trans. Magn., 13, p. 1359 Globus, A., (1977) J. Phys. (Paris) Colloq., 38, p. 1 Globus, A., Duplex, P., Guyot, M., (1991) IEEE Trans. Magn. Magn., 7, p. 617 Kang, S.-H., Yoo, H.-I., (2000) J. Appl. Phys., 88, p. 4754 Smit, J., Wijn, H.P.J., (1959) Ferrites, , Philips Technical Library Eindhoven, The Netherlands Thakur, S., Katyal, S.C., Singh, M., (2007) Appl. Phys. Lett., 91, p. 262501 Singh, K., Negi, N.S., Kotnala, R.K., Singh, M., (2008) Solid State Commun., 148, pp. 18-21 Kumar, P., Sharma, S.K., Knobel, M., Singh, M., (2010) J. Alloys Compd., 508, pp. 115-118 Koops, C.G., (1951) Phys. Rev., 83, p. 121 Husdon, A.S., (1968) Marconi Rev., 37, p. 43 Maxwell, J.C., (1929) Electricity & Magnetism, 1, p. 328. , Oxford University Press Oxford Section Wagner, K.W., (1913) Ann. Phys. (Leipzig), 40, p. 817 Wang, D.H., Goh, W.C., Ning, M., Ong, C.K., (2006) Appl. Phys. Lett., 88, p. 212907 Kumar, M., Yadav, K.L., (2006) J. Appl. Phys., 100, p. 74111 Ahmed, M.A., Ateia, E., Salem, F.M., (2007) J. Mater. Sci., 42, pp. 3651-3660 Kumar, S., Alimuddin, Kumar, R., Thakur, P., Chae, K.H., Angadi, B., Choi, W.K., (2007) J. Phys. Condens. Matter., 19, p. 476210 Ramana Reddy, A.V., Ranga Mohan, G., Ravinder, D., (1999) J. Matter. Sci., 34, p. 3169 Ahmed, M.A., Ateia, I.E., (2002) EL-DEKS Vib. Spectrosc., 30, pp. 69-75