THE DIELECTRIC STUDY AND REFRACTIVE INDEX OF NIOBIUM PENTOXIDE (Nb2O5) UNDER ALTERNATIVE CURRENT CONDITIONS
Keywords:
alternative current, niobium pentoxide, refractive index, DielectricsAbstract
The equations for dielectric constant, loss factor of niobium pentoxide and its relationship with the refractive index under alternative current conditions were derived in this work. The algorithms for the dielectric constant, loss factor, and refractive index were written using the interactive environment of maple-18. Static permittivity, conductivity, and relaxation time of the compound were substituted in the written algorithms and the dielectric constant, loss factor and refractive index of Nb2O5 were determined. The graphs of dielectric absorption ????′′ (????) against the dielectric dispersion ????′ (????) were plotted for the same frequency in Cartesian coordinates. These semi-circle curves obtained as discussed in this work show that, the data for Nb2O5 can be fitted in Debye equations. Higher dielectric constant and refractive index at higher temperatures and lower relaxation frequencies have also been determined. The behavior of the dielectric constant obtained is consistent with the polymorph nature of niobium pentoxide. The relationship between refractive
index and dielectric constant has been established.
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References
Karnik, T. (2008). AVX C7 s.r.o., Dvorakova 328, 563 01 Lanskroun
Zednicek, T. & Millman, W.A. (2000). CARTS EUROPE, Brussels, Belgium, 187-192.
Schulz, K.J., Piatak, N.M., & Papp, J.F. (2017). https://doi.org/10.3133/pp1802M
Zednicek, T., Zednicek, S., & Sita, Z. (2003). C. McCracken, W.A. Millman, J. Gill., AVX Ltd. Long Rd. Paignton, Devon TQ4 7ER, United Kingdom. http://www.avxcorp.com.
Kukli, K., Ritala, M., & Leskela, M. (2001). J. Electrochem. Soc. 148(2), F35-F41.
Soares, M.R.N., Leite, S., Nico, C., Peres, M., Fernandes, A.J.S., Graca, M.P.F., Matos, M., Monteiro, K., Monteiro,T., & Costa, F.M. (2011).J.Europ. Ceram. Soc. 31, 501-506.
Vinnichenko, M., Rogozin, A., Grambole, D., Munnik, F., Kolitsch, A., Moller, W., Stenzel, O., Wilbrandt, S., Chuvilin, A., Kaiser, U. (2009).
Appl. Phys. Letts. 95.
Clima, S., Pourtois, G., Hardy, A., Van Elshocht, S., Van Bael, M.K., De Gendt, S., Wouters, D.J. Heyns, M., & Kittl, J.A. (2010). J.Electrochem. Soc. 157, G20-G25.
Nowak, I. & Ziolek, M. (1999). Chem. Revs. 99, 3603-3624.
Oliveira, L.C.A., Ramalcho, T.C., Goncalves, M., Cereda, F., Carvalho, K.T., Nazzaro, M.S., & Sapag, K. (2007). Chem. Phys. Letts. 446, 133-137.
Berger, L., Mahne, H., Klemm, V., Leuteritz, A., Mikolajick, T., Rafaja, D. (2012). Appl. Phys. A: Mat. Sc. & Proc. 108, 431-437.
Venkataraj, S., Drese, R. Ch. L., Kappertz, O., Jayavel, R., & Wuttig, M, (2002). J. Appl. Phys. 91(8).
Holtzberg, F., Reisman, A., Berry, M., & Berkenblit, M. (1957). J. Am. Chem. Soc. 79(5), 2039.
Goldschmidt, H.J. (1959). J. Inst. Mat. 87, 235.
Gatehouse, B.M. & Wadsley, A.D. (1964). Acta Cryst. 17, 1545.
Cava, R.J. Batlogg, B., Krajewski, J.J., Poulsen, H.F., Gammel, P., Peck. Jr. W.F., & Rupp, L.W. (1991). Phys. Rev. B44(13), 6973.
Brauer, G. (1941) Z. anorg. Allgem. Chem. 248, 1.
Lucas, J.M.F., Telxeira, S.S., Gavinho, S.R., Prezas, P.R., Silva, C.C., Sales, A.J.M., Valento, M.A., Almeida, A.F., Freire, F.N., Salgueiro, C.C.M., Nunes, J.F., & Graca, M.P.F. (2019). J. Mat. Sc.: Mat. Electro. 30(2), 11346-11353.
Turchevsky, S.A., Novikov, D.L., Gubanov, V.A., & Freeman, A.J. (1994). Phys. Rev. B. 50(5). Natori, K., Otani, D., & Sano, N. (1998). Appl. Phys. Lett. 73, 632.
Kingery, W.D., Bowen, H.K., & Ulhlmann, D.R. (1976). 2nd Edition, John Wiley and Sons, New York.
Von Hippel, A. (1954) M.I.T. Press, Cambridge, Massachusetts.
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