Nb Substitution Effects on Superconducting Properties of Ru1−xNbxSr2Eu1.4Ce0.6Cu2O10−δ

<table>Real part of the first harmonic of ac susceptibility (<svg height="26.049999" id="M26" style="vertical-align:-4.27245pt" version="1.1" viewbox="0 0 16.35 26.049999" width="16.35" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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<g transform="matrix(.008,-0,0,-.008,9.95,6.8)"><path d="M227 744l-123 -338l-31 15l73 368q12 3 41.5 -8t36.5 -20z" id="x2032"></path></g>
<g transform="matrix(.012,-0,0,-.012,9.95,25.987)"><path d="M384 0h-275v27q67 5 81.5 18.5t14.5 68.5v385q0 38 -7.5 47.5t-40.5 10.5l-48 2v24q85 15 178 52v-521q0 -55 14.5 -68.5t82.5 -18.5v-27z" id="x31"></path></g>
</svg>) as a function of temperature, measured at 127 Hz and an ac applied field of 10 Oe for Ru1−xNbxSr2Eu1.4Ce0.6Cu2O10−δ system.</table>

Advances in Condensed Matter Physics

fig6

Figure 6

Figure 6: Nb Substitution Effects on Superconducting Properties of Ru1−xNbxSr2Eu1.4Ce0.6Cu2O10−δ