標題: | Temperature dependence of the penetration depth in YBa2Cu3O7-delta measured by microwave ring resonators |
作者: | Zeng, HK Juang, JY Wu, KH Uen, TM Gou, YS 電子物理學系 Department of Electrophysics |
公開日期: | 1-十一月-2000 |
摘要: | YBa2Cu3O7-(TM) (YBCO)) superconducting ring resonators with a YBCO ground plane were fabricated using double-side YBCO films deposited on LaAlO3 (LAO) substrates. The temperature dependent London penetration depth, Delta lambda = lambda (T)-lambda (5K), was systematically studied by varying the oxygen content of the same resonator structure. For fully oxygenated condition (delta = 0.05), the resonator exhibits a quality factor Q > 10(4) at 16K, and Delta lambda (T) displays a linear behavior over a wide range of temperatures. With increasing delta (e.g. delta = 0.2), although Delta lambda is still linear in temperature, the slope changes by more than a factor of 2. As delta is further increased, Delta lambda (T) changes fi om T- to T-2-dependence. The results suggest that in the underdoped regime, the incoherent scattering of charged carriers may become increasingly prominent. |
URI: | http://dx.doi.org/10.1016/S0921-4534(00)01454-4 http://hdl.handle.net/11536/30149 |
ISSN: | 0921-4534 |
DOI: | 10.1016/S0921-4534(00)01454-4 |
期刊: | PHYSICA C |
Volume: | 341 |
Issue: | |
起始頁: | 2669 |
結束頁: | 2670 |
顯示於類別: | 會議論文 |