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.
• 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

• 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

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Identyfikatory

DOI

10.18052/www.scipress.com/ILCPA.44.66