頁籤選單縮合
題 名 | Transport Properties of YBa₂Cu₃O7-x/CaMoO₃ Multilayers in a Magnetic Field |
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作 者 | Yang,H. C.; Chen,C. C.; Horng,H. E.; Wang,L. M.; | 書刊名 | Chinese Journal of Physics |
卷 期 | 36:2(Part2) 民87.04 |
頁 次 | 頁394-400 |
分類號 | 337 |
關鍵詞 | |
語 文 | 英文(English) |
英文摘要 | The transport properties of superconducting YBa₂Cu₃O7-x/CaMoO₃ (YBCO/ CMO) multilayers in the mixed-state were measured to study the effects of magnetic field, flux pinning and current density on the behaviors of Hall coefficient. The superconducting critical temperature was reduced due to the presence of CMO layers. The longitudinal resistivities under a magnetic field parallel to the c-axis shows a thermally activated behavior and pinning energy decreases with an increasing magnetic fields or currents applied. The pinning abilities are also affected by the thickness of YBCO or CMO layers. The negative Hall coefficient in the mixed-state depends on the flux pinning and decreases as the pinning force decreases. The results are consistent with the Wang and Ting's model [10]. |
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