Title of article
Oxygen mobility in SmBa2Cu3O7−δ measured by anelastic spectroscopy
Author/Authors
do Nascimento، نويسنده , , R.M. and Gimenez، نويسنده , , J.M.A. and Grandini، نويسنده , , Paula C.R. and Cunha-Silva، نويسنده , , A.G.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
3
From page
79
To page
81
Abstract
Anelastic spectroscopy has been performed on a sample of superconducting oxide SmBa2Cu3O7−δ (SBCO) using a torsion pendulum operating with frequency around 10 Hz. A thermally activated relaxation peak is observed near 500 K with the activation enthalpy of 1.55 ± 0.03 eV and the pre-exponential factor of approximately 10−15 s, which is attributed to the mobility of non-stoichiometric oxygen by jumps in positions O1 and O5 of the lattice.
Keywords
anelasticity , SBCO oxides , Non-stoichiometric oxygen , Internal friction
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Serial Year
2006
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Record number
2150396
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