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-Nov-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
Appears in Collections:Conferences Paper


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