Effects of oxygen ion irradiation on PMN-PT ferroelectric materials for space applications

Padmaja Guggilla; A. K. Batra; Rachel Powell

doi:10.1117/12.2240025

26 September 2016 Effects of oxygen ion irradiation on PMN-PT ferroelectric materials for space applications

Padmaja Guggilla, A. K. Batra, Rachel Powell

Author Affiliations +

Proceedings Volume 9929, Nanostructured Thin Films IX; 99291I (2016) https://doi.org/10.1117/12.2240025
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

Lead magnesium niobate-lead titanate (PMN-PT) is an important and high performance piezoelectric and pyroelectric relaxor material having wide range of applications in infrared sensor devices. Present work studies the fabrication and dielectric characteristics of PMN-PT in the bulk form. The PMN-PT bulk material was prepared in sol-gel method and subsequently irradiated with heavy ion oxygen. The materials were analyzed and determined that the relaxorferroelectric material indicated changes in its dielectric constant and pyroelectric coefficient after irradiation. Due to the radiation fluent of 1×10¹⁶ ions/cm², the dielectric constant of the material increased uniformly, while its pyroelectric coefficient showed a sharp increased to the value of 5×10^-9 μC/cm² °C with increase in temperature. Its dielectric constants showed increase in values of 527 μC/cm² °C at 50°C, 635 μC/cm2 °C at 60°C and 748 μC/cm² °C at 70°C. Properties such as the material impedance, admittance and modulus were investigated for changes in properties which became evident after irradiation.

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Padmaja Guggilla, A. K. Batra, and Rachel Powell "Effects of oxygen ion irradiation on PMN-PT ferroelectric materials for space applications", Proc. SPIE 9929, Nanostructured Thin Films IX, 99291I (26 September 2016); https://doi.org/10.1117/12.2240025

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