Dielectric and Thermal Studies of Copper Doped Magnesium Hydrogen Maleate Hexahydrate Single Crystals

B. Rajagopal, A.V. Sarma, M.V. Ramana

Department of Physics, Andhra University, Waltair, A.P., India.
Department of Physics, Kavitha Degree College, Khammam, 507002 A.P., India.
Department of Physics, SR&BGNR degree College, Khammam, 507002 A.P., India.

DOI: 10.4236/jmmce.2011.1015115                

Abstract

The dielectric and thermal analysis of copper doped Magnesium Hydrogen Maleate Hexahydrate single crystals are studied for the first time. The dielectric constant, loss tangent, a.c. conductivity and a.c. activation energy were measured with variation of frequency in the range 50 Hz to 1 MHz. Dielectric studies reveal that the present crystal under investigation show good optical quality. The melting point and final compound after decomposition were determined using the DTA/TG analysis.

Keywords

Dielectric constant, loss tangent, TG, DTA

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	M.P. Gupta, C. Van Alsenoy and A.T.H. Lenstra, 1984, “Magnesium bis(hydrogen maleate) hexahydrate”, Acta Crystallogr, C40, pp 1521-1526.
[2]	F. Vanhouteghem, A.T.H. Lenstra and P. Schweiss, 1987, “Magnesium bis(hydrogen maleate) hexahydrate studied by elastic neutron diffraction and ab initio calculations”, Acta Crystallogr, B43, pp 523-528.
[3]	Michel Fleck and l. Bohaty, 2009a, “Crystal Structures and an Overview of Alkali Metal Maleates”, Zeitschrift Für Natur for Schung, Graphical abstracts Syntheses, 64B, No 5, pp 517-524.
[4]	J.R. Allan, G.M. Baillie, J.G. Bonner, D.L. Gerrard and S. Hoey, 1989, “Thermal studies on maleic acid compounds of manganese(II), cobalt(II), nickel(II), copper(II) and zinc(II)” , Thermochim Acta, 143, pp 283-288.
[5]	B. S. Randhawa and K. Gandotra, 2006, “A Comparative study on the thermal decomposition of some transition metal carboxylates”, J Thermal Analysis and Calorimetry, Vol 85, No 2, pp 417–424.
[6]	T. Uma Devi, N. Lawrence, R. Ramesh Babu, K. Ramamurthi and G. Bhagavannarayana, 2009b, “Structural, Electrical and Optical Characterization Studies on Glycine Picrate Single Crystal, A Third Order Nonlinear Optical Material”, J Minerals & Materials Characterization & Engineering, Vol 8, No 10, pp 755-763.
[7]	B. Rajagopal, A. V. Sharma and M. V. Ramana, 2011a, “Electric and FTIR studies on magnesium hydrogen maleate hexahydrate (MHMH) single crystals”, Scholars Research Library, Archives of Applied Science Research, 3 (3), pp 321-326.
[8]	B. Rajagopal, A. V. Sharma and M. V. Ramana, 2011b, “Growth and characterisation of Nickel doped Magnesium Hydrogen Maleate Hexahydrate single crystals”, Scholars Research Library, Archives of Physics Research, 2011, 2(3), pp 180-185.
[9]	B. Rajagopal, M.V. Ramana and A.V. Sarma, 2011c, “Dielectric, Thermal and FTIR Studies of Cobalt Doped Magnesium Hydrogen Maleate Hexahydrate Single Crystals”, Material Science Research India, Vol. 8(1), pp 91-96.
[10]	B. Rajagopal, A. V. Sharma and M. V. Ramana, 2011d, “Dielectric, Thermal and FTIR studies of Chromium doped Magnesium hydrogen maleate hexahydrate single crystals”, Pelagia Research Library, Advances in Applied Science Research, 2 (4), pp 116-122.
[11]	S. Suresh, A. Ramanand, and D. Jayaraman, 2011e, “Growth, optical, dielectric and fundamental properties of L-arginine acetate NLO single crystal”, Recent Research in Science and Technology, 3(1): pp 25-28.
[12]	K. Rajarajan, S. Selvakumar, Ginson P. Joseph, M. Gulam Mohamed, I.Vedha Potheher and P. Sagayaraj, 2005, “Mechanical, dielectric and photoconducting properties of a novel non-linear optical crystal”, Indian Journal of Pure & Applied Physics, Vol 43, pp 926-930.
[13]	S. Tamilselvan, X. Helan Flora, A. Cyrac Peter, M. Gulam Mohamed,C.K. Mahadevan, M. Vimalan and J. Madhavan, 2011f, “Growth and electrical properties of NLO crystals of L-Asparaginium nitrate (LAsN)”, Scholars Research Library: Archives of Applied Science Research, 3 (1): pp 235-240.
[14]	S. Suresh, A. Ramanand, D. Jayaraman, P. Mani and K. Anand, 2011g, “Growth, Optical, Theoretical and Dielectric Studies on L-Valine Single Crystal”, International Journal of Chem Tech Research, 3, 1, pp 122-125.
[15]	Mohd Hamzah Harun, Elias Saion, Anuar Kassim, Muhd Yousuf Hussain, Iskandar Shahrim Mustafa and Muhd Ahmad Ali Omer, 2008, “Temperature Dependence of AC Electrical Conductivity of PVA Composite Polymer Film”, Malaysian Polymer Journal, Vol 3, No 2, pp 24-31.
[16]	T. Uma Devi, N. Lawrence, R. Rameshbabu, S. Selvanayagam, Helen Stoeckli Evans, G. Bhagavannarayana, K. Ramamurthi, 2010, “Synthesis, Crystal Growth, Structural, Optical, Thermal and Mechanical Properties of Semiorganic Nonlinear Optical Material, L-Cystine Dihydrochloride”, J Minerals & Materials Characterization & Engineering, Vol 9, No 5, pp 495-507.