Pre and Post Effect of Swift Heavy Ion Irradiation on Infrared Spectral Evolution of Y_3+xFe_5-xO₁₂ (x = 0.0 – 1.0) System

• Autorzy: Modi K. B. , Shah S. J. , Kathad C. R. , Sharma P. U.

Identyfikatory

DOI

10.18052/www.scipress.com/ILCPA.44.66

• Języki publikacji: EN

Abstrakty

EN

Present work aims to investigate the effect of Y³⁺ - substitution and 50 MeV, Li³⁺ ion irradiation (fluence: 5 x 10¹³ ions/cm²) on infrared spectral evolution of Y_3+xFe_5-xO12 (x = 0.0, 0.2 0.4, 0.6, 0.8 and 1.0) garnet system. Infrared absorption spectra for x = 0.0 – 0.6 compositions show three absorption bands while x = 0.8 – 1.0 compositions are characterized by two absorption bands, identical with IR spectra of rare earth ortho ferrites. The position and intensity of bands are found to be influenced by Y^{3+ - substitution. The intensity of absorption bands for x = 0.0 – 0.4 compositions is found to increase, while for x = 0.6 – 1.0 compositions no effect of swift heavy ion irradiation has been observed. The results have been explain in the light of SHII induced defect states, partial removal of un-wanted YFeO}₃ phase and change in structural parameters. It seems that YFeO₃ phase is irradiation hard phase.

Słowa kluczowe

EN

yttrium iron garnet; Swift heavy ion irradiation; IR spectroscopy

• Wydawca: Przedsiębiorstwo Wydawnictw Naukowych "DARWIN"
• Czasopismo: International Letters of Chemistry, Physics and Astronomy
• Rocznik: 2015
• Tom: Vol. 44
• Strony: 66--72
• Opis fizyczny: Bibliogr. 21 poz., rys.

Twórcy

autor

Modi K. B.

• Department of Physics, Saurashtra University, Rajkot - 360005, India

autor

Shah S. J.

• Darshan Institute of Engineering and Technology, Morvi Road, Rajkot - 363650, India

autor

Kathad C. R.

• Department of Physics, Saurashtra University, Rajkot - 360005, India

autor

Sharma P. U.

• M. N. College, Visnagar - 384315, India

Bibliografia

• [2] Studer F, Houpart C, Groult D, Toulemonde M., Rat. Eff. Def. Solid, 110(1-2) (1989) 55-59.
• [3] Donnerberg, H, Catlow CRA., J. Phys. Condens. Matter. 5 (1993) 2947-2960.
• [4] Patel MK, Vijaykumar V, Avasthi DK, Kailas S, Pivin JC, Grover V, Mandal BP, Tyagi AK., Nucl. Instrum. Methods Phys. Res. B 266 (2008) 2898-2901.
• [5] Benyagoub A., NIM B 225 (2004) 88-96.
• [6] Nagabhushna H, Prashantha SC, Nagabhushna BM, Lakshminarasappa BN, Singh F., Spectra Acta A 71 (2008) 1070-1073.
• [7] Schuster B, Lang M, Klein R, Trautmann C, Neumann R, Benyagoub A., Nucl. Instrum. Methods Phys. Res. B. 267 (2009) 964-968.
• [8] Singh F, Singh RG, Vinod Kumar, Khan SA, Pivin JC., J. Appl. Phys. 110 (2011) 083520(1-6).
• [9] Singh JP, Dixit G, Srivastava RC, Agrawal HM., Nucl. Instrum. Methods Phys. Res. B. 269 (2011) 133-139.
• [10] Tawfik A, Hamada IM, Hemeda OM., J. Magn. Magn. Mater. 250 (2002) 77-82.
• [11] Rashad Mohamed Mohamed, J. Mater. Sci. 42 (2007) 5248-5255.
• [12] Mousa MA, Summan AM, Ahmed MA, Badawy AM., J. Mater. Sci. 24 (1989) 2478-2482
• [13] Singh JP, Dixit G, Srivastava RC, Agarwal HM, Ravikumar., J. Alloys Compd. 551 (2013) 370-375.
• [14] Modi KB, Sharma PU., Rad. Eff. Def. Solids 169(8) (2014) 723-739.
• [15] Chong FY, Jin Yun-Fan, J. Appl. Phys. 108 (2010) 104909 (1-6).
• [16] Sharma PU, Dolia SN, Ravi Kumar, Modi KB., Radiat. Eff. Def. Solid. 166 (2011) 648-652.
• [17] Sharma PU, Roy MK, Ravi Kumar, Verma HC, Joshi HH, Modi KB., Hyper. Inter. 187, (2011) 117-124.
• [18] Modi KB, Sharma PU, Phys. Scripta 88(2) (2013) 025702 (1-11).
• [19] Modi KB, Sharma PU., Rad. Eff. Def. Solid. 168(11-12) (2013) 967-974.
• [20] Hofmeister AM, Campbell KR., J Appl. Phys. 72 (1992) 638-646.
• [21] Hemeda OM, Barakat Mohsen Mohamed, Hemeda DM., Turk. J. Phys. 27 (2003) 537-550.