Relationship between grain size and the degrees of orientation in a twinned ErBa<sub>2</sub>Cu<sub>3</sub>O<sub>y</sub> superconductor oriented in modulated rotating magnetic fields
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<jats:title>ABSTRACT</jats:title><jats:p>We report the dependences of the degrees of tri- or bi-axial orientation on strength of applied magnetic fields of modulated rotating field (MRF) for twinned ErBa<jats:sub>2</jats:sub>Cu<jats:sub>3</jats:sub>O<jats:sub>y</jats:sub> (Er123) powder samples oriented in epoxy resin under various MRF conditions. Introduction of a pulverization process in the Er123 powders improved the degrees of inplane orientations, and is effective for enhancing the inplane magnetic anisotropy of Er123 grains with twin microstructure. Formation of inhomogeneous domain structure is a dominant factor of the enhancement, and the present study indicates possibility of tri- or bi-axial orientation of the twinned Er123 grains even under relatively low MRF conditions around 1 T.</jats:p>
収録刊行物
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- MRS Proceedings
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MRS Proceedings 1434 2013-01-01
Springer Science and Business Media LLC
