Radiation-damage produced in BaHfO₃ irradiated with thermal and fast-neutrons



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Lopez Garcia, A. and Presa Muñoz del Toro, Patricia de la and Rodriguez,, A. M. and Saitovitch, H. and Silva, P. R. J. (1993) Radiation-damage produced in BaHfO₃ irradiated with thermal and fast-neutrons. Physical review B, 47 (1). pp. 84-87. ISSN 1098-0121

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Official URL: http://dx.doi.org/10.1103/PhysRevB.47.84


Samples of BaHfO₃ were irradiated with fast and thermal neutrons to produce ^181Hf. Attenuations of the gamma-gamma perturbed angular correlations in ^181Ta were observed, and they may have been caused by the interaction between defects (produced during or after neutron irradiation) and oxygen vacancies. Several defect structures were detected. For one of the structures, an excitation energy of 12 meV was measured, which was attributed to an electron state below the conduction band. The values of the dielectric constant and of the effective electron mass were also deduced.

Item Type:Article
Additional Information:

©1993 The American Physical Society.
We thank Professor T. Madey for his critical comments. One of us (A.L.G.) also thanks Fundacion Antorchas for partial support.

Uncontrolled Keywords:Perturbed angular-correlation
Subjects:Sciences > Physics > Materials
Sciences > Physics > Solid state physics
ID Code:45641
Deposited On:04 Dec 2017 15:36
Last Modified:04 Dec 2017 15:36

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